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No Crank Test: Cherokee

  1. If vehicle is equipped with manual transmission, go to next step. If vehicle is equipped with automatic transmission, go to step  11 .
  2. Turn ignition off. Ensure vehicle is in Neutral and parking brake is applied. Remove starter relay from Power Distribution Center (PDC). PDC is located in engine compartment. Refer to PDC label for starter relay identification. Connect a jumper wire between starter relay connector terminals C6 and C7. See Figure . If engine cranks, go to next step. If engine does not crank, go to step  7 .
  3. Check for battery voltage at starter relay connector terminal C6 (Yellow wire). If battery voltage exists, go to next step. If voltage does not exist, repair open in wiring from starter relay connector to battery. Recheck system.
  4. Depress clutch. Check for battery voltage at starter relay connector terminal C8 (Yellow wire) with ignition switch in START position. If battery voltage exists, go to next step. If battery voltage does not exist, repair open circuit between ignition switch and relay connector. Recheck system.
  5. Check resistance between starter relay connector terminal C10 (Black/White wire) and ground. If resistance is less than 5 ohms, go to next step. If resistance is 5 ohms or more, repair open circuit.
  6. If no problems are found, replace starter relay. Recheck system.
  7. Check battery cables for voltage drop. See FEED CIRCUIT RESISTANCE TESTS  . If no problem is found, go to next step. If excessive resistance is found, repair as necessary. Recheck system.
  8. Ensure starter relay is removed. Disconnect Brown wire from starter solenoid. Check resistance of Brown wire between starter relay connector terminal C7 and starter solenoid. If resistance is less than 5 ohms, go to next step. If resistance is 5 ohms or more, repair open Brown wire. Recheck system.
  9. Check for battery voltage at starter relay connector terminal C6 (Yellow wire). If battery voltage exists, go to next step. If battery voltage does not exist, repair open in wiring between starter relay connector and battery. Recheck system.
  10. Depress clutch. Check for battery voltage at starter relay connector terminal C8 (Yellow wire) with ignition switch in START position. If battery voltage exists, go to next step. If battery voltage does not exist, repair open circuit between ignition switch and starter relay connector. Recheck system.
  11. Turn ignition on. Ensure transmission is in Park position. Using scan tool, select INPUTS/OUTPUTS. Check park/neutral position. If PARK/NEUTRAL is displayed, go to next step. If PARK/NEUTRAL is not displayed, see DTC P1899: P/N SWITCH STUCK IN PARK OR IN GEAR (A/T) under DIAGNOSTIC TESTS in SELF-DIAGNOSTICS - CHEROKEE article in ENGINE PERFORMANCE.
  12. Connect a jumper wire between starter relay connector terminals C6 (Yellow wire) and C7 (Brown wire). See WIRING DIAGRAMS  . If engine cranks, go to next step. If engine does not crank, go to step  14 .
  13. Check resistance between starter relay connector terminal C10 (Black/White wire) and ground. If resistance is less than 5 ohms, replace starter relay. If resistance is 5 ohms or more, repair open Black/White wire between starter relay connector and 14-pin splice C107, located at back of engine compartment.
  14. Check battery cables for voltage drop. See FEED CIRCUIT RESISTANCE TESTS  . If no problem is found, go to next step. If excessive resistance is found, repair as necessary. Recheck system.
  15. Disconnect Brown wire from starter solenoid. Check resistance of Brown wire between starter relay connector terminal C7 and starter solenoid. If resistance is less than 5 ohms, go to next step. If resistance is 5 ohms or more, repair open Brown wire. Recheck system.
  16. Check for battery voltage at starter relay connector terminal C6 (Yellow wire). If battery voltage exists, go to next step. If battery voltage does not exist, repair open in wiring between starter relay connector and battery. Recheck system.
  17. Check for battery voltage at starter relay connector terminal C8 (Yellow wire) with ignition switch in START position. If battery voltage exists, go to next step. If battery voltage does not exist, repair open circuit between ignition switch and starter relay connector. Recheck system.
  18. If solenoid clicked when jumper wire was used in step 12)  , repair mechanical problem preventing starter from cranking engine. If solenoid did not click, replace starter.
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