TEST ACTION APPLICABILITY
8 The following items need to be checked as a possible cause for a no start condition.
Refer to any Technical Service Bulletins that may apply to the symptom.
The spark plugs must be free from fuel, oil, coolant and/or any foreign material or
deposits.
The fuel must be free from contamination.
The exhaust may be free from restrictions.
The engine compression must be within specifications.
The engine valve timing must be within specifications.
The engine must be free from vacuum leaks.
Were any of the above conditions found?
All
Yes → Repair as necessary.
Perform POWERTRAIN VERIFICATION TEST VER - 1.
No → Test Complete.
9 Turn the ignition off.
Disconnect the fuel pump module harness connector.
Turn the ignition on.
With the DRBIIIt, actuate the ASD Fuel System test.
Using a 12 volt test light connected to ground, probe the Fuel Pump Relay Output
circuit at the Fuel Pump Module harness connector.
Does the test light illuminate brightly?
All
Yes → Go To 10
No → Go To 12
Caution: Stop All Actuations.
10 Turn the ignition off.
Disconnect the Fuel Pump Module harness connector.
Note: Check connectors - It is critical that the connector is free from any
signs of corrosion or deformities - Clean/repair as necessary.
Using a test light connected to battery voltage, probe the Fuel Pump ground circuit
at the Fuel Pump Module harness connector.
Does the test light illuminate brightly?
All
Yes → Go To 11
No → Repair the open/high resistance in the fuel pump ground circuit.
Perform POWERTRAIN VERIFICATION TEST VER - 1.
11 If there are no possible causes remaining, view repair. All
Repair
Replace the Fuel Pump Module.
Perform POWERTRAIN VERIFICATION TEST VER - 1.
12 Turn the ignition off.
Remove the Fuel Pump Relay from the PDC.
With a 12 volt test light connected to ground, probe the Fuel Pump Relay Fused B+
circuit at the PDC.
Does the test light illuminate?
All
Yes → Go To 13
No → Repair the Fuel Pump Relay Fused B+ circuit. Check for open fuse
in the PDC.
Perform POWERTRAIN VERIFICATION TEST VER - 1.
318
STARTING
*ENGINE CRANKS DOES NOT START — Continued
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