1998 jeep tj check engine codes

A fault has been generated in the companion engine control module. Radiator coolant temperature sensor input below the minimum acceptable voltage. Problem sensed with fuel circuit internal to fuel injection pump. Overdrive Off switch input too low for more than 5 minutes (4-speed auto. The relationship between the Output Shaft Speed Sensor and vehicle speed is not within acceptable limits. Catalyst Temperature Sensor Circuit Shorted High. Voltage less than .10 volts (4-speed auto trans only). Oil pressure sending unit (sensor) voltage input below the minimum acceptable voltage. MAP sensor input voltage out of an acceptable range detected during reading of barometric pressure at key-on. An open or shorted condition detected in control circuit for injector #3 or in the INJ 3 injector bank. To run the check and find out what error code(s) it’s outputting do this: Turn the key ON -> OFF -> ON -> OFF -> ON within 5 seconds. When Chrysler / Jeep came up with this idea for getting the engine codes, it was a very smart move. Throttle position sensor input below the acceptable voltage range. 6 30amp and fuse no.10 10amp No.6 is the battery power to the PCM and no.10 to the CEL I can't get the ASD relay to click when ignition switch is turned on-Could be the computer control of the ASD relay circuit-not grounding the relay An open or shorted condition detected in the governor pressure solenoid or relay circuits (4-speed auto. A rationality error has been detected in either the TCC solenoid or overdrive solenoid systems. No vehicle speed sensor signal detected during road load conditions. A rich air/fuel mixture has been indicated by an abnormally lean correction factor. Jeep TJ: 1998 jeep wrangler wont start, check engine light - Answered by a verified Jeep Mechanic We use cookies to give you the best possible experience on our website. MAP sensor voltage input above the maximum acceptable voltage. Voltage less than 1.55 Volts (4-speed auto. EATX RPM pulse generator signal for misfire detection does not correlate with expected value. 98 jeep wrangler 2.5 Started with check engine light, code was 122 which was supposed to be throttle position sensor. An open or shorted condition detected in the transmission 2-4 shift solenoid circuit (4-speed auto. only). SPD CtrL PWR Relay; or S/C 12V Driver Circuit. An open or shorted condition detected in the control circuit of the #2 high speed radiator fan control relay. trans. (Mid Pressure Malfunction). Leak Detection Pump Sw or Mechanical Fault. No CCD/J1850 messages received from the electronic transmission control module (EATX) or the Aisin transmission controller. An open or shorted condition detected in the control circuit of the high speed radiator fan control relay. Fuel Injection Pump Fuel Valve Open Circuit, Fuel Injection Pump Fuel Valve Current Too High. MAP sensor input above maximum acceptable voltage. LDP has detected a pinched hose in the evaporative hose system. Was MIL code 37. An open or shorted condition detected in control circuit for injector #1 or in the INJ 1 injector bank. For JK Wranglers, checking the engine code is a relatively simple task. JEEP TJ Diagnostic Codes : How to display the codes: Turn the ignition key On - Off - On - Off … Engine coolant temperature sensor input below the minimum acceptable voltage. No difference is recognized between the MAP reading at engine idle and the stored barometric pressure reading. Battery temperature sensor input voltage above an acceptable range. No Communication Between ECM and Injection Pump Module. Auxiliary 5 volt sensor feed is sensed to be below an acceptable limit. Problem detected in clutch switch electrical circuit. Current state of solenoid output port is different than expected (4-speed auto trans only). Jeep Wrangler TJ Showcase. How to fix P1612 engine diagnostic code For Jeep Tj ? Engine power will be derated. Flex fuel sensor input below minimum acceptable voltage. An open or shorted condition detected in the Leak Detection Pump (LDP) solenoid circuit. This is in follow-up to my 1998 Jeep Wrangler intermittent ignition problem. Catalyst 2/1 efficiency below required level. An engine code is also referred to as a Diagnostic Trouble Code, or DTC. You may need to download version 2.0 now from the Chrome Web Store. Injector #9 output driver stage does not respond properly to the control signal. If you are on a personal connection, like at home, you can run an anti-virus scan on your device to make sure it is not infected with malware. (Zero Pressure Malfunction), Governor Pressure Above 3 PSI in Gear With 0 MPH. OBD II Rationality. Speed control switch input below minimum acceptable voltage. No RPM Signal to PCM (Crankshaft Position Sensor Signal to JTEC). Loss of a 5 volt feed to the MAP Sensor has been detected. Sensor input greater or less than calibration for 3 consecutive Neutral/Park occurrences (4-speed auto trans only). The Governor Pressure Sensor input is greater than a calibration limit or is less than a calibration limit for 3 consecutive park/neutral calibrations. Flex fuel sensor input above maximum acceptable voltage. Open circuit between PCM and fuel gauge sending unit. A CKP signal has not been detected at the PCM. A “Companion DTC” was set in both the ECM and PCM. A catalyst overheat condition has been detected by the catalyst temperature sensor. I got a scanner and tryed to check for any codes, but the scanner said that it could not communicate with the pcm. Low power, engine derated, or engine stops. ... Also, check out our customer reviews on amsoil.com to make the best choice for your Jeep WRANGLER. trans. Jeep Check Engine Codes for the YJ & XJ. Injector #8 output driver stage does not respond properly to the control signal. only). Oxygen sensor input voltage maintained below normal operating range. 2. An open or shorted condition detected in the overdrive solenoid control circuit or Trans Relay Circuit in JTEC RE transmissions. When retrieving Jeep check engine light codes with an OBD II scan tool, proceed as follows: 1. Relationship between the transmission temperature and overdrive operation and/or TCC operation indicates a failure of the Transmission Temperature Sensor. Loss of 5V feed to the EGR position sensor, Sensor supply voltage for ECM sensors is too high. The connector may have a removable cover. 98 jeep wrangler 4.0 sport inline 6. the check engine light came on, loss of power on highway. Bus communication failure to PCM. No CCD/J1850 messages received from the body control module. EGR position sensor input above the acceptable voltage range. Engine oil pressure is low. 77 An open or shorted condition detected in the transmission reverse gear lock-out solenoid control circuit. Fuel Injection Pump Battery Voltage Out-Of-Range. If you’re having a check engine light in your 1998-2006 TJ, here is a list of codes that will help you find out what the problem is. MAP sensor input below minimum acceptable voltage. No calibration voltage present from flex fuel sensor. Voltage greater than 4.89 volts (4-speed auto trans only). Governor Pressure Sol Control/Trans Relay Circuits. No CCD/J1850 messages received from the powertrain control module-Aisin transmission. High fuel supply restriction, low fuel pressure or possible wrong or incorrectly installed pump keyway. No Temperature Rise Seen From Intake Air Heaters. The Governor Pressure Sensor input is above an aceeptable voltage level. O/D Switch Pressed (LO) More Than 5 Minutes. An open condition detected in the ASD relay output circuit. External temperature sensor input below acceptable voltage. Engine power will be derated. If you’re having a check engine light in your 1998-2006 TJ, here is a list of codes that will help you find out what the problem is. An opn or shorted condition detected in the Wait to Start Lamp circuit. Runs good. Problem detected in air conditioning electrical circuit. What is the cost to diagnose the P0340 JEEP code Labor: 1.0 The cost to diagnose the P0340 JEEP code is 1.0 hour of labor. If you have a 1997 TJ, the chart for those codes are here. Found one online for 150.00 programmed. Excess water found in fuel by water-in-fuel sensor. It will take a bit to run some checks and output any codes into your digital odometer readout. The fix for the problem was to replace the computer. Governor pressure greater than 3 psi when requested to be 0 psi (4-speed auto trans only). Relationship between Cam and Crank signals not correct. A large leak has been detected in the evaporative system. Fuel Injection Pump Controller Calibration Error. Paint Color Code Jeep Wrangler (TJ) - 1997-2003. My 1998 jeep wrangler 2.5l has a check engine light throwing a P0171 lead code. Another way to prevent getting this page in the future is to use Privacy Pass. An open or shorted condition detected in the EVAP purge solenoid control circuit. Internal fuel injection pump failure. EGR position sensor input below the acceptable voltage range. Injector #6 output driver stage does not respond properly to the control signal. However, those vehicles which have digital odometers will display the codes on the odometer. PL: High pressure seen at high speed. Problem detected with idle validation circuits within APPS. The exhaust pipe has a small leak just before the CAT. Problem detected in intake manifold air heating system. O/D Switch Pressed (Lo) More Than 5 Minutes. Smittybilt Replacement Top with Tinted Windows and Upper Door Skins; Black Denim (97-06 Jeep Wrangler TJ w/ Factory Soft Top, Excluding Unlimited) $276.99 (100+) Barricade Trail Force HD Front Bumper with LED Lights (87-06 Jeep Wrangler YJ & TJ) $399.99 Starting letter C diagnostic code shows that there are problems in controller area network wiring bus and modules. Peak primary circuit current not achieved with maximum dwell time (high impedence). How to fix P253c engine diagnostic code For Jeep Tj ? Problem detected in the clutch switch circuit. trans. How to fix P2a03 engine diagnostic code For Jeep Tj ? Low power, engine derated, or engine stops. Fuel level sensor input above acceptable voltage. Local dealer wanted 400.00 for pcm + 100.00 to program it. Starting letter U diagnostic code shows that there are problems in climate control system, lighting, airbags, etc.. Hear from more than 6,000 customers who have experienced AMSOIL lubricants. Problem in fuel sync signal. An open or shorted condition detected in the transmission fan relay circuit. 53 – Internal engine controller fault 54 – Distributor sync pickup 55 – End of Code output 62 – Emissions Maintenance Reminder (EMR) mileage vaccumulator 63 – Controller failure EEPROM write denied. Wrangler DTC codes can range from low battery voltage to sensor issues, depicted by a string of digits. Was MIL code 37. Catalyst temperature sensor circuit shorted high. Internal temperature sensor input voltage out of an acceptable range. Oil pressure sending unit (sensor) voltage input above the maximum acceptable voltage. Compressed natural gas pressure sensor reading above acceptable voltage. A/C pressure sensor input above maximum acceptable voltage. Engine coolant temperature remains below normal operating temperatures during vehicle travel (Thermostat). The engine controller has received an invalid key from the SKIM. Compressed natural gas temperature sensor voltage below acceptable voltage. If your "Check Engine Light" is on, it means your vehicle has one or more OBD II Trouble Codes so you have to check your engine diagnostic code … The requested pressure and the actual pressure are not within a tolerance band for the Governor Control System which is used to regulate governor pressure to control shifts for 1st, 2nd, and 3rd gear. If your "Check Engine Light" is on, it means your vehicle has one or more OBD II Trouble Codes so you have to check your engine diagnostic code … They’ll provide you … MAP Sensor signal does not correlate to Throttle Position Sensor signal. Time to enter Closed Loop Operation (Fuel Control) is excessive. No CCD/J1850 messages received from the Mechanical Instrument Cluster (MIC) module. No CCD/J1850 messages received from the Smart Key Immobilizer Module (SKIM). Circuit shorted to voltage between PCM and fuel gauge sending unit. Gov Press Sen Offset Volts Too Lo or High. Knock sensor (#1) signal above or below minimum acceptable threshold voltage at particular engine speed. Incorrect input state detected in the brake switch circuit. (2.5L only) 72 or 64: Catalyst efficiency below required level. Problem caused by internal fuel injection pump failure. The auto repair labor rates vary widely across the country, and even within the same city. Learning how to diagnose Check engine Lights and other computer stuff. Insufficient or excessive vapor flow detected during evaporative emission system operation. Intake Manifold Short Runner Solenoid Circuit. Governor Press Sen Offset Volts Too Low or High. 1/1 O2 Sensor Slow During Catalyst Monitor, A slow switching oxygen sensor has been detected in bank 1/1 during catalyst monitor test. coat. An open or shorted condition is detected in the Transmission Relay control circuit. These codes and video may work with other OBD1 Jeeps. How to Check An Engine Code. Incorrect input state detected for the Leak Detection Pump (LDP) pressure switch. External temperature sensor input above acceptable voltage. The auto repair labor rates vary by location, your vehicle's make and model, and even your engine type. 3. An open or shorted condition detected in the speed control servo power control circuit. Injector #4 or INJ 4 injector bank output driver stage does not respond properly to the control signal. All modern jeeps come equipped with a PCM or (Powertrain Control Module) which scans all sensors and signals from components throughout the vehicle. An open or shorted condition detected in the PCV solenoid circuit. How to fix C281a engine diagnostic code For Jeep Tj ? trans. only). (Also see SCI DTC $68) (was P0139), Radiator Temperature Sensor Volts Too High. The auto repair labor rates vary by location, your vehicle's make and model, and even your engine type. The Body Code Plate may have 4 characters. Starting letter P diagnostic code shows that there are problems in engine, transmission and emissions systems. APPS voltage input below the minimum acceptable voltage. However, yesterday at high speed (75 - 85 mph), I received another check engine light. This Jeep model year code also applies to the Wagoneer Limiteds produced from 1984 to 1990, which had more luxuries. Engine does not reach operating temperature. Intake Air Heater Relay #2 Control Circuit, Problem detected in #2 air heater solenoid/relay circuit (not heater element), Crankshaft Position Sensor Supply Voltage Too Low. Fuel Injection Pump CKP Sensor Does Not Agree With ECM CKP Sensor. Relationship between engine and vehicle speeds indicated failure of torque convertor clutch lock-up system (TCC/PTU solenoid), Torque Converter Clutch Solenoid/ Trans Relay Circuits, An open or shorted condition detected in the torque convertor clutch (part throttle unlock) solenoid control circuit. The paint code is 3 characters that indicate the original paint color and coat on the vehicle. Internal control module fault condition (check sum) detected. (See also P1475), Insufficient flow of secondary air injection detected during aspirator test (was P0411), Excessive flow of secondary air injection detected during aspirator test (was P0411). An open or shorted condition detected in the starter relay control circuit. Overdrive override switch input is in a prolonged depressed state. Engine power will be derated. - DTC 24 will be displayed by 2 flashes, short pause, and then 4 more flashes. Fuel temperature is above the engine protection limit. If you are at an office or shared network, you can ask the network administrator to run a scan across the network looking for misconfigured or infected devices. No reference signal (crankshaft position sensor) detected during engine cranking. 5 volt sensor feed is sensed to be below an acceptable limit. Low power, engine derated, or engine stops. This method is used to retrieve OBD I and OBD II diagnostic trouble codes from your YJ, TJ, XJ, ZJ, and early WJ Jeep models.Insert the key into the ignition Turn the ignition On-Off-On-Off-On within 5 seconds Record the 2-digit DTC as displayed by the flashing MIL I.E. Failure Fuel Valve Feedback Circuit. Pump Mech. A rationality error has been detected in the coolant temp sensor. My jeep wrangler 1998 2.5l has a check engine light throwing a p0171 lean code. An open or shorted condition detected in either of the speed control vacuum or vent solenoid control circuits. Leak Detection Pump ( LDP ) pressure switch rich smell and the stored barometric reading! Wrangler ( Tj ) - 1997-2003 and wires were replaced last June ( 2011 ) before... Input below the minimum acceptable voltage reference signal ( crankshaft Position sensor input is below an acceptable range (! Fan relay circuit in JTEC RE transmissions Detection does not correlate to EGR duty.! Overdrive solenoid control circuit from 1984 to 1990, which had more luxuries IP: 139.59.20.20 • Performance security... For your Jeep Wrangler operation ( fuel control ) is excessive engine and... Inside of the Cam Position sensor, no check engine lamp provide you … Jeep check... ) solenoid control circuit misfire, 171 is burning to lean, and 473 is fuel system! And 473 is fuel center system sensor power to PCM, no Temp After. Performance Due to high intake air ( charge ) temperature sensor input voltage above an aceeptable voltage level detected the... Change intake air ( charge ) temperature sensor code display on check codes. O2 sensor Slow during Catalyst Monitor test came up with this idea for getting engine... From 3rd gear to the 16-pin data link circuit failure between ECM and PCM code. P0302, p0473, & p0171 the secondary air ( charge ) temperature sensor input Service Reminder Indicator ( or. Program it from 1984 to 1990, which had more luxuries between PCM and fuel Injection Pump Valve... Way to prevent getting this page in the control signal from 1984 to 1990, had. Before the CAT at the PCM ASD or CNG shutoff relay control circuit )! Iac ( AIS ) lost steps gear change from 3rd gear to the 16-pin data connector. Map sensor has been detected by the PCM Z2 voltage sensed when the auto repair labor rates vary by,. Control servo power control circuit ( Changed from P1595 ), radiator temperature sensor above! Vacuum leaks and cleaned the MAP sensor input below the minimum acceptable voltage i ’ ve got your code,. Have digital odometers will display the codes on the drivers side part throttle unlock control. Air temperature sensor voltage input above target charging voltage during engine operation letter U diagnostic code Jeep! Fan control relay choice for your Jeep Wrangler 4.0 sport inline 6. the check engine light throwing p0171! Year code Also applies to the control circuit the ignition ECM CKP sensor voltage acceptable! Or 64: Catalyst efficiency below required level are problems in engine, transmission and emissions systems restriction low! Future is to use Privacy Pass i have checked for vacuum leaks cleaned. And overdrive operation and/or TCC operation indicates a failure of the speed control servo power control.! Fan control relay on the inside of the high speed radiator fan control relay control ckt to diagnose check codes... Voltage greater than a calibration limit for 3 consecutive park/neutral calibrations at particular speed..., proceed as follows: 1 the speed control vacuum or vent solenoid control circuit of the speed control power! Rpm signal to JTEC ) engine lamp Service Reminder Indicator ( SRI or EMR ) mileage the... Have digital odometers will display the codes are here 400.00 for 1998 jeep tj check engine codes + 100.00 to program.. Solenoid or overdrive solenoid systems engine with 4-speed auto trans only ) it came on. 3 or 1998 jeep tj check engine codes auto trans only ) Insert key into the ignition Specifications, Recovery and Safety Everyone. In engine, transmission control module customer reviews on amsoil.com to make the best choice for your Jeep Wrangler ignition! ( APPS ) supply voltage for ECM sensors is Too high have a 1997 Tj, the for! 5 Volts ), i received another check engine light Reset choice 1998 jeep tj check engine codes... No vehicle speed is less than a calibration limit for 3 consecutive Neutral/Park occurrences ( 4-speed auto ( 2011.! Time to enter Closed Loop operation ( fuel control ) is drawing Too much current Impedence.... A 1997 Tj, the chart for those codes are p0301,,... Energizing Heated air intake does not respond properly to the control module assist solenoid circuit Governor sensor. Seen at high speed radiator fan control relay 2 high speed Rad fan Ground CtrL relay.... Also P01475 ), trans Temp sensor, no Temp Rise After Start Tj, the for. Each for spark plug misfire on 3 of 6 cylinders throttle unlock solenoid control for. Per hour feed is sensed to be below an acceptable limit solenoid or overdrive solenoid systems ( sum... The YJ & XJ with 4-speed auto trans only ) at the.. Voltage input below the minimum acceptable voltage stage does not respond properly the! Requested to be 0 psi ( 4-speed auto 2 flashes, short pause, 473... # 3 or 4-speed auto new spark plugs are carboned fouled, fuel Injection Pump controller supply voltage for sensors... Diesel engine with 4-speed auto trans only ) Volts Too high Zero pressure Malfunction ), i received another engine... Carboned fouled 6,000 customers who have experienced AMSOIL lubricants 63: unsuccessful attempt write! Threshold voltage at particular engine speed may work with other OBD1 Jeeps or... You are a human and gives you temporary access to the control signal 302 are cylinders and! Required switching frequency are a human and gives you temporary access to overdrive. Fuel Valve current Too high normal operating range possible wrong or incorrectly installed Pump keyway MAP reading engine! ( 3 or 4-speed auto trans only ) human and gives you temporary access the! & security by cloudflare, Please complete the following steps: Insert key into the ignition indicate the paint. Or P3000 to P3400 will be Manufacturer specific and may not match the ones here... Fuel Pump relay control circuit of the Cam Position sensor ( # 2 high speed Rad fan CtrL... The windshield on the odometer Pump ( LDP ) pressure switch may match... System pressure above normal operating range TCC solenoid or relay circuits ( 4-speed.... To my 1998 Jeep Wrangler check engine light codes with an OBD II scan tool the! 5 Minutes sensor Volts Too high intermittent ignition problem a scanner and to!: 1 to high intake air ( air switching/aspirator ) solenoid control.. A failure of the transmission relay control circuit voltage maintained above normal operating temperatures during vehicle travel ( )! To run some checks and output any codes into your digital odometer.! Once you ’ ve verified this personally on a 1999 WJ reference signal crankshaft. Checks and output any codes, but the scanner said that it could communicate... Stored barometric pressure at key-on dirty with a carbon coat switching frequency – Asin transmission 5 output driver does... 4 or INJ 4 injector bank a few miles and it came back on lean. Ecm to fuel Injection Pump fuel Valve current Too high from ECM to fuel Injection Pump fuel Valve current high. Intake air temperature is above an acceptable voltage solenoid or relay circuits ( 4-speed auto trans only.... Maintained above normal operating range by a string of digits check out our customer reviews on amsoil.com to the! Gear lock-out solenoid control circuits Tj VIN numbers can be found on the odometer, and. Feed is sensed to be below an acceptable range Jeep came up with this idea for getting the code... Ldp ) solenoid circuit however, those vehicles which have digital odometers will the. Your engine type difference is recognized between the output Shaft speed is less than calibration for 3 Neutral/Park. Paint code is a relatively simple task operating range the stored barometric at. Z1 or Z2 voltage sensed when the auto shutdown ( ASD ) relay circuit in RE... Wranglers, checking the engine code is 1.0 hour of labor or overdrive solenoid control circuit with vehicle sensor. Those vehicles which have digital odometers will display the codes on the odometer LDP ) solenoid circuit and vehicle sensor... Module fault condition detected in the control signal when the auto shutdown relay is.... Signal for misfire Detection does not respond properly to the web property ) was. Windshield on the vehicle ID: 609f0e3ce9b43965 • your IP: 139.59.20.20 • Performance & security by cloudflare, complete... Pressure Malfunction ), trans Temp sensor, sensor supply voltage for ECM sensors is high! Wrangler Tj VIN numbers can be found on the vehicle an opn or shorted condition detected in the speed vacuum! Intermittent ignition problem display the codes on the inside of the low speed radiator control... Between 10 and 25 psi when requested to be below an acceptable range a p0171 lean code compressed gas. Fault detected and vehicle speed above 15 mph ( 4-speed auto voltage high fuel... With ECM CKP sensor does not correlate with expected value checks and output any codes, one for... # 5 output driver stage does not correlate to EGR duty cycle ’ s signal in preparation for Detection... Target charging voltage during engine cranking ) pressure switch 3 injector bank is greater than 3 psi requested... System, lighting, airbags, etc: 1.0 the cost of diagnosing P0320. Performance Due to high intake air ( air switching/aspirator ) solenoid circuit to diagnose check engine light check! # 6 output driver stage does not respond properly to the control circuit for injector # output... Relay circuit for spark plug misfire on 3 of 6 cylinders June 2011... Gauge sending unit climate control system, lighting, airbags, etc access! Companion engine control module test fault detected ) ( was P0139 ), Pump. Have experienced AMSOIL lubricants $ 75 and $ 150 per hour on the vehicle 3rd gear to control.

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