Table 88
Troubleshooting Test Steps
Values
Results
1. Inspect Electrical Connectors and Wiring
A. Check the fuses.
B. Thoroughly inspect the P1/J1 ECM connectors and thoroughly
inspect the connector for the start relay. Refer to Troubleshooting,
“Electrical Connector - Inspect” for details.
D. Inspect the connections on the starting motor.
C. Perform a 30 N (6.7 lb) pull test on each of the wires that are
associated with the start relay.
Damaged wire or
connector
Result:
A damaged wire or damaged connector
was not found. The fuses are OK.
Proceed to Test Step 2.
Result:
A damaged wire or damaged connector
was found. A fuse is blown.
Repair the damaged wire or the damaged con-
nector. Replace any blown fuses.
Use the electronic service tool to clear all logged
diagnostic codes. Verify that the repair eliminates
the fault.
2. Check for Active or Recently Logged Diagnostic Codes
A. Connect the electronic service tool to the diagnostic connector.
B. If the engine will start, then start the engine.
C. Make a note of any active diagnostic codes.
Diagnostic Trouble
Codes
Result:
Diagnostic code 677-5 is active.
Proceed to Test Step 3.
Result:
Diagnostic code 677-6 or 677-3 is active.
Proceed to Test Step 5.
Result:
A 1041-2 diagnostic code is active or re-
cently logged.
If a 1041-2 diagnostic code is recently logged, this
may be caused by the keyswitch being held in the
START position for too long.
If a 1041-2 diagnostic code is active, proceed to
Test Step 9.
Result:
An active diagnostic code was not
displayed.
There may be a fault with the start signal from the
keyswitch or the power circuit for the starting mo-
tor. The ECM does not monitor the status of these
conditions.
Proceed to Test Step 7.
(continued)
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