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Jeep CHEROKE


Forum Cherokee II XJ Jeep CHEROKE

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2010-09-11 16:44:37

I HAVE A JEEP CHEROKE,M reg, 4ltr petrol, the gentleman is deseased so i am starting afresh i cannot start it, gone through the obvious, we have checked battery, plugs and leads, also distributor , checked the coil and changed it, cause wife mentioned something about it, jeep is all firing and wants to start but wont, any suggestions please..

very low milage vehicle, only done 33,000 miles, engine is in mint condition, cant understand why it wont start,

dont know what to do next.

lovely vehicle, very frustrated , just want to get it on the road,

2010-09-29 19:40:28

Try running a diagnostic to see what trouble (flash) codes you get.

***DISCLAIMERS***

1) Please note that this is not a complete listing, but it is close to complete. It was compiled from a number of different sources. I therefore make no claims as to it's accuracy. This is a work in progress, so if anyone sees glaring omissions or errors, PM me and I will get it fixed.

2) Not all of these codes are relavant to Jeeps, but rather to Chrysler vehicles in general.

3) Computers (in this case the ECU) only do what you tell them, so they might not see problems which do exist, or they might see problems that do not exist, or they might indicate a problem which is in reality caused by some other component. Code readers have the ability to glean much more accurate information from the ECU than the methods outlined below. Therefore, this listing should only to be used as an aid in troubleshooting and NOT as a repair guide/manual.

***END DISCLAIMERS***

Intro and Notes

So, before outlining the proceedure (a.k.a. "key trick") to get the codes, a few things to note:

1) You may have to set the parking brake for the codes to show

2) On older models, the blink-spacing is not always perfectly uniform, so if you see 23 23, it's probably just a single 55 since codes are not repeated (55 is end of codes - it's normal)

3) On newer models with a digital odometer, the codes are usually displayed on the odometer rather than blinking the check engine light.

4) When the computer indicates major failure, it can activate "Limp In" mode, which guesses about data to compensate for sensor failure, allowing you to get the car to a mechanic. One major symptom of this is losing third and/or fourth gear on autos.

The "Key Tricks"

Older (OBDI) models - Start with the ignition off. Within five seconds, switch the key on, off, on, off, on. ("On" is NOT "Start" and "Off" is NOT "Lock"). The "check engine" light will flash. Count the flashes. Each code is a two digit code, so a (for example) 23 would be FLASH FLASH (pause) FLASH FLASH FLASH (long pause). It will never flash more than 9 times, so watch for those pauses!

Newer (OBDII) models - Put the key into the ignition, push down the odometer reset button, then turn the key to RUN with your finger on the button - and then release the button. The odometer will go through 1111111 through 999999, then display the car's serial number. It will then show the error codes (it might show them starting with P). If this method does not work, try the OBDI method.

Older Model Computer Codes (OBDI) - IMPORTANT! Codes may be different for newer vehicles starting circa 1996.

11 No ignition reference signal detected during cranking OR timing belt skipped one or more teeth; OR loss of either camshaft or crankshaft position sensor.

12 Battery or computer recently disconnected

13 MAP sensor or vacuum line may not be working

14 MAP sensor voltage below .16V or over 4.96V

15 No speed/distance sensor signal

16 Loss of battery voltage detected with engine running

17 Engine stays cool too long (bad thermostat or coolant sensor?)

OR

17 (1985 turbo only): knock sensor circuit

21 Oxygen sensor signal doesn't change (stays at 4.3-4.5V). Probably bad oxygen sensor

22 Coolant sensor signal out of range - May have been disconnected to set timing

23 Incoming air temperature sensor may be bad

24 Throttle position sensor over 4.96V

25 Automatic Idle Speed (AIS) motor driver circuit shorted or target idle not reached

26 Peak injector circuit voltage has not been reached (need to check computer signals, voltage reg, injectors)

27 Injector circuit isn't switching when it's told to (TBI)

OR (MPI) injector circuit #1 not switching right

OR (turbo) injector circuit #2 not switching right

OR (all 1990-) injector output driver not responding

  • check computer, connections

31 Bad evaporator purge solenoid circuit or driver

32 (1984 only) power loss/limited lamp or circuit

OR

32 EGR gases not working (1988) - check vacuum, valve

OR

32 (1990-92) computer didn't see change in air/'fuel ratio when EGR activated - check valve, vacuum lines, and EGR electrical

33 Air conditioning clutch relay circuit open or shorted (may be in the wide-open-throttle cutoff circuit or normal on early 80's models if you don't have air conditioning)

34 (1984-86) EGR solenoid circuit shorted or open

OR

34 (1987-1991) speed control shorted or open

35 Cooling fan relay circuit open or shorted

OR

35 idle switch motor fault - check connections

36 (turbo only) Wastegate control circuit open or shorted

37 Shift indicator light failure, 5-speed

OR

part throttle lock/unlock solenoid driver circuit (87-89)

OR

solenoid coil circuit (85-87 Turbo only)

OR

Trans temperature sensor voltage low (1995 and on)

41 Alternator field control circuit open or shorted

42 Automatic shutdown relay circuit open or shorted

OR

42 Fuel pump relay control circuit

OR

42 Fuel level unit - no change over miles

OR

42 Z1 voltage missing when autoshutdown circuit energized (The Z1 voltage is the voltage of the circuits fed by the autoshutdown relay. This typically includes fuel pump and switched-battery feed to the ignition coil)

43 Peak primary coil current not achieved with max dwell time

OR

43 Cylinder misfire

OR

43 Problem in power module to logic module interface

44 No FJ2 voltage present at logic board

OR

44 Logic module self-diagnostics indicate problem

OR

44 Battery temperature out of range

45 Turbo boost limit exceeded (engine was shut down by logic module)

46 Battery voltage too high during charging or charging system voltage too low

47 Battery voltage too low and alternator output too low

51 Oxygen sensor stuck at lean position (this may be tripped by a bad MAP sensor system causing a rich condition. If you get hot rough idle and stalling, especially on deceleration, accompanied by flooded engine and difficulty restarting, that can be a bad MAP sensor causing the O2 sensor to try to compensate. If you get poor cold driveability, stumbling and bucking, and acceptable warm driving with poor gas mileage (a drop of 10 mpg or more), that is usually the O2 sensor.

OR

51 Internal logic module fault ('84 turbo only).

52 Oxygen sensor stuck at rich position

OR

52 Internal logic module fault ('84 turbo only)

53 Logic module internal problem

54 No sync pickup signal during engine rotation (turbo only)

OR

54 Internal logic module fault ('84 turbo only) - or camshaft sensor/distributor timing

55 End of codes

61 "Baro" sensor open or shorted

62 EMR mileage cannot be stored in EEPROM

62 PCM failure SRI mile not stored

63 Controller cannot write to EEPROM

64 Catalytic converter efficiency failure

65 Power steering switch failure

66 No CCD Message From TCM and/or No CCD Message From BCM

Newer model Computer codes (OBDII)

30 Sensor heater relay problem

36 Sensor heater relay problem

106 MAP sensor voltage out of range detected at startup

107 MAP sensor voltage too low

108 MAP sensor voltage too high

112 Intake air temperature sensor voltage low

113 Intake air (charge) temperature sensor voltage high

116 Coolant temparature sensor reading doesn't make sense

117 Engine coolant temperature sensor voltage low

118 Engine coolant temperature sensor voltage high

121 Throttle position sensor and MAP sensor disagree with each other

122 Throttle position sensor voltage low

123 Throttle position sensor voltage high

125 Taking too long to reach proper operating temparature and switch to energy-efficient mode

130 Sensor heater relay problem

130 O2 Sensor Circuit Malfunction (Bank 1 Sensor 1)

131 O2 Sensor Circuit Low Voltage (Bank 1 Sensor 1)

132 O2 Sensor Circuit High Voltage (Bank 1 Sensor 1)

133 O2 Sensor Circuit Slow Response (Bank 1 Sensor 1)

134 O2 Sensor Circuit No Activity Detected (Bank 1 Sensor 1)

135 O2 Sensor Heater Circuit Malfunction (Bank 1 Sensor 1)

136 O2 Sensor Circuit Malfunction (Bank 1 Sensor 2)

137 O2 Sensor Circuit Low Voltage (Bank 1 Sensor 2)

138 O2 Sensor Circuit High Voltage (Bank 1 Sensor 2)

139 O2 Sensor Circuit Slow Response (Bank 1 Sensor 2)

140 O2 Sensor Circuit No Activity Detected (Bank 1 Sensor 2)

141 O2 Sensor Heater Circuit Malfunction (Bank 1 Sensor 2)

142 O2 Sensor Circuit Malfunction (Bank 1 Sensor 3)

143 O2 Sensor Circuit Low Voltage (Bank 1 Sensor 3)

144 O2 Sensor Circuit High Voltage (Bank 1 Sensor 3)

145 O2 Sensor Circuit Slow Response (Bank 1 Sensor 3)

146 O2 Sensor Circuit No Activity Detected (Bank 1 Sensor 3)

147 Oxygen sensor heater element not working properly (this device helps to reduce emissions more quickly)

151 Oxygen sensor voltage problem - short circuit to ground?

152 Oxygen sensor voltage problem - short circuit to active 12V?

153 Oxygen sensor response too slow

154 Oxygen sensor does not show either a rich or lean condition - may need replacement

155 Oxygen sensor heater element not working properly (this device helps to reduce emissions more quickly)

157 Oxygen sensor voltage problem - short circuit to ground?

158 Oxygen sensor voltage problem - short circuit to active 12V?

159 Oxygen sensor response too slow

160 Oxygen sensor does not show either a rich or lean condition - may need replacement

161 Oxygen sensor heater element not working properly (this device helps to reduce emissions more quickly)

171 The oxygen sensor is saying that the system air/fuel mix is far too lean (too much fuel is being added as a correction).

172 The oxygen sensor is saying that the system air/fuel mix is far too rich (too much air is being added as a correction).

174 The oxygen sensor is saying that the system air/fuel mix is far too lean (too much fuel is being added as a correction).

175 The oxygen sensor is saying that the system air/fuel mix is far too rich (too much air is being added as a correction).

176 Flex fuel sensor can't be seen

178 Flex fuel sensor problem

179 Flex fuel sensor problem

182 Compressed natural gas temperature sensor problem

183 Compressed natural gas temperature sensor problem

201 Injector #1 control circuit problem (open or shorted)

202 Injector #2 control circuit problem (open or shorted)

203 Injector #3 control circuit problem (open or shorted)

204 Injector #4 control circuit problem (open or shorted)

205 Injector #5 control circuit problem (open or shorted)

206 Injector #6 control circuit problem (open or shorted)

207 Injector #7 control circuit problem (open or shorted)

208 Injector #8 control circuit problem (open or shorted)

300 Misfire detected in multiple cylinders.

301 Misfire detected in cylinder #1.

302 Misfire detected in cylinder #2.

303 Misfire detected in cylinder #3.

304 Misfire detected in cylinder #4.

305 Misfire detected in cylinder #5.

306 Misfire detected in cylinder #6.

307 Misfire detected in cylinder #7

308 Misfire detected in cylinder #8.

320 Crankshaft position sensor reference signal cannot be found while the engine is cranking.

325 Knock sensor (#1) signal is wrong.

330 Knock sensor (#2) signal is wrong.

340 No camshaft signal being received by the computer

350 A coil is drawing too much current.

351 Coil #1 is not reaching peak current at the right time

352 Coil #2 is not reaching peak current at the right time

353 Coil #3 is not reaching peak current at the right time

354 Coil #4 is not reaching peak current at the right time

355 Coil #5 is not reaching peak current at the right time

356 Coil #6 is not reaching peak current at the right time

357 Coil #7 is not reaching peak current at the right time

358 Coil #8 is not reaching peak current at the right time

401 A required change in air/fuel mixture was not detected during diagnostic test.

403 An problem was detected in the EGR solenoid control circuit.

404 The EGR sensor's reported position makes no sense

405 EGR position sensor voltage wrong.

406 EGR position sensor voltage wrong.

412 The secondary air solenoid control circuit seems bad (this is used for the aspirator).

420 The catalyst seems inefficient (#1).

432 The catalyst seems inefficient (#2).

441 Evaporative purge flow system not working properly

442 A leak has been detected in the evaporative system!

443 Evaporative purge flow system solenoid not working properly

455 A large leak has been detected in the evaporative system!

456 A small leak has been detected in the evaporative system!

460 The fuel level sender is not reporting any change over a long distance. Something seems wrong.

461 The fuel level sender is not reporting any change over a long time. Something seems wrong.

462 Fuel level sender voltage wrong.

463 Fuel level sender voltage wrong.

500 Haven't heard from the speed sensor lately.

505 The idle speed air control motor doesn't seem to be working correctly.

522 Oil pressure sensor problems

523 Oil pressure sensor problems

551 The power steering switch may not be working. (Neons: high pressure is showing up at high speed)

600 Oh-oh! The coprocessors aren't talking to each other within the computer!

601 Internal computer error!

604 Internal computer error! (RAM check)

605 Internal computer error! (ROM)

615 Starter relay circuit problem

622 Generator field control problem

645 A/C clutch relay circuit problem.

700 The automatic transmission computer or Aisin computer has a problem - ask it what's going on. I don't know.

703 Brake switch circuit information seems wrong.

711 Based on the transmission temperature and its operations, it looks like the transmission temperature sensor's gone bad.

712 Transmission fluid temperature sensor voltage wrong.

713 Transmission fluid temperature sensor voltage wrong.

720 The Output Shaft Speed Sensor doesn't match the reported vehicle speed.

740 The engine's running faster than it should for these speeds, so I think thetorque convertor clutch lock-up system is bad

743 Torque converter clutch (part throttle unlock) solenoid circuit problem - shift solenoid C electrical fault

748 Governor Pressure Solenoid circuit problem (Transmission relay circuit problem in Jeep RE transmissions)

751 Overdrive override switch has been pressed for over five minutes. Just thought you should know.

753 Overdrive solenoid control circuit problem (transmission relay circuit in Jeep RE transmissions.)

756 Shift solenoid B (2-3) fault

783 The overdrive solenoid can't go from 3rd gear to the overdrive gear.

801 Transmission reverse gear lockout solenoid circuit problem!

833 Problem with the clutch-released switch circuit?

1192 Inlet air temperature sensor voltage is wrong

1193 Inlet air temperature sensor voltage is wrong

1194 Oxygen sensor heater performance is faulty

1195 Oxygen sensor is slow

1196 The oxygen sensor switched too slo

2017-07-03 07:49:19

That looks something so hard to follow.


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