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*ENGINE WILL NOT CRANK —
TEST
4
WARNING: The transmission must be in Neutral and the parking break
must be engaged for this test.
WARNING: The engine may be cranked in this test. Keep away from moving
engine parts.
Turn the ignition off.
Remove the Starter Relay from the PDC.
Briefly connect a jumper wire between the Starter Relay Output circuit and the
Fused B+ circuit at the starter relay connector in the PDC.
Did the engine crank?
Yes → Go To 5
→ Go To 10
No
5
Turn the ignition off.
Remove the Starter Relay from the PDC.
Install a substitute relay in place of the Starter Relay.
Attempt to start the engine.
Does the engine crank?
Yes → Replace the Starter Relay.
→ Go To 6
No
6
Remove the Starter Relay from the PDC.
Using a 12-volt test light connected to ground, check the Ignition Switch Start circuit
while turning the ignition switch to the START position.
Does the test light illuminate with the ignition switch in the START position?
Yes → Go To 7
→ Repair the Ignition Switch Start circuit for an open.
No
7
Turn the ignition off.
Disconnect the ECM harness connectors.
Remove the Starter Relay from the PDC.
Remove the ASD Relay from the PDC.
Using a jumper wire, connect ASD Relay connector cavities 30 and 87 in the PDC.
Turn the ignition on.
Measure the voltage of the Starter Relay Control circuit.
Is the voltage above 1.0 volt?
Yes → Repair the Starter Relay Control circuit for a short to voltage.
→ Go To 8
No
8
Turn the ignition off.
Disconnect the ECM harness connectors.
Remove the Starter Relay from the PDC.
Measure the resistance of the Starter Relay Control circuit.
Is the resistance below 10.0 ohms?
Yes → Go To 9
→ Repair the Starter Relay Control circuit for an open.
No
Continued
ACTION
Perform NO START VERIFICATION - VER-1.
Perform NO START VERIFICATION - VER-1.
Perform NO START VERIFICATION - VER-1.
Perform NO START VERIFICATION - VER-1.
DRIVEABILITY - DIESEL
239
APPLICABILITY
All
All
All
All
All
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