:  Dec 17, 2007



Overview

For information on the operation of the system, refer to the relevant workshop manual section.

Inspection and verification

. Verify the customer concern.

. Visually inspect for obvious mechanical or electrical faults.

Mechanical Electrical
  • Gear selector lever cable adjustment (vehicles with automatic transmission)
  • Starter motor
  • Engine (turns freely)
  • Battery
  • Fuses Central and battery junction boxes Megafuses
  • Wiring harness(es)
  • Damaged, loose or corroded connectors
  • Ignition switch
  • Starter relay
  • Transmission control module (TCM)
  • Engine control module (ECM)

. If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step.

. Use the approved diagnostic system or a scan tool to retrieve any diagnostic trouble codes (DTCs) before moving onto the symptom chart or DTC index.
  Make sure that all DTCs are cleared following rectification.
Make sure that all DTCs are cleared following rectification.

Symptom chart

Symptom Possible causes Action
The engine does not crank (starter motor does not turn)
  • Gear selector not in P or N position (vehicles with automatic transmission)
  • Battery
  • Starter relay
  • Invalid key code received by central junction box (CJB)
  • Harness/Connectors
  • Starter motor
  • Ignition switch
  • Generator
  • Transmission control module (TCM)
  • Engine control module (ECM)
  • Engine seized
Make sure the gear selector is in the P or N position and correctly adjusted. Check the battery condition and state of charge. Check for DTCs indicating an immobilizer fault. Check the starter motor relay, ignition switch and generator circuits. Refer to the electrical guides. Check for TCM and ECM DTCs. Check that the engine turns freely.
The engine does not crank (starter motor does turn)
  • Starter motor installation
  • Starter motor
  • Flywheel/Drive plate ring gear
Check the starter motor installation (fasteners tight, starter motor square to engine, etc). Check the flywheel/drive plate ring gear teeth for damage, foreign objects, etc.
Engine cranks too slowly
  • Battery
  • Harness/Connectors
  • Starter motor
  • Oil grade
Check the battery condition and state of charge. Check the starter motor circuits. Refer to the electrical guides. Check the engine oil grade and condition.
Engine cranks too fast
  • Low engine compression
Check the engine compressions.
Excessive starter motor noise
  • Starter motor
  • Flywheel/Drive plate ring gear
  • Starter motor installation/casing
Check the starter motor installation (fasteners tight, motor square to engine, etc). Check the starter motor casing condition. Check the flywheel/drive plate ring gear teeth for damage, foreign objects, etc.

DTC index

:
  Generic scan tools may not read the codes listed, or may read only 5-digit codes. Match the 5 digits from the scan tool to the first 5 digits of the 7-digit code listed to identify the fault (the last 2 digits give extra information read by the manufacturer-approved diagnostic system).

:
  For a full list of ECM DTCs, refer to workshop manual section 303-14 - Electronic Engine Controls.

DTC Description Possible causes Action
P051216 Starter Request Circuit
  • Crank request circuit low input
Refer to the electrical guides and check the starter circuit. Repair/renew as necessary.
P051217 Starter Request Circuit
  • Crank request circuit high input
Refer to the electrical guides and check the starter circuit. Repair/renew as necessary.
P051300 Incorrect Immobilizer Key
  • Security key invalid
Program keys using the approved diagnostic system. Investigate and repair any codes stored in other CAN modules. Clear the codes and retest.
P061600 Starter Relay Circuit Low
  • Starter relay drive circuit short circuit to ground
  • Starter relay drive circuit high resistance
  • Starter relay failure
Check the starter relay operation. Refer to the electrical guides and check the starter relay circuit. Repair/renew as necessary.
P061700 Starter Relay Circuit High
  • Starter relay drive circuit short circuit to battery
  • Starter relay failure
Check the starter relay operation. Refer to the electrical guides and check the starter relay circuit. Repair/renew as necessary.
P063305 Immobilizer Key Not Programmed - ECM/PCM
  • Security target ID transfer process failed
Program the key using the approved diagnostic system.
P063355 Immobilizer Key Not Programmed - ECM/PCM
  • Security no target in EMS
Program the module using the approved diagnostic system.
B1C5024 Crank Switch
  • Ignition switch crank position short circuit
  • Ignition switch fault
Refer to the electrical guides and check the ignition switch circuit. Check the switch operation, renew as necessary.