Commander 4WD V8-4.7L Flex Fuel (2009)
3. CHECKING THE PCM FUSED IGNITION CIRCUITS
CAUTION: Do not probe the PCM harness connectors. Probing the PCM harness connectors will damage the PCM terminals resulting in
poor terminal to pin connection. Install PCM Pinout Box 8815 to perform diagnosis.
1. Turn the ignition on.
2. Using a 12 volt test light connected to ground, check the PCM Fused Ignition circuits.
3. Check each circuit with the ignition on, engine running position, and during cranking.
4. Wiggle test each circuit during the test to check for an intermittent open in the circuit.
NOTE: The test light should be illuminated and bright. Compare the brightness to that of a direct connection to the battery.
Is the test light illuminated and bright?
Yes
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Go To 4.
No
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Repair the open or short to ground in the PCM Fused Ignition circuits.
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Perform the POWERTRAIN VERIFICATION TEST. See: Testing and Inspection/Diagnostic Trouble Code Tests and Associated
Procedures/Verification Tests/Powertrain Verification Test.
4. CHECKING THE PCM FUSED B+ CIRCUITS
1. Turn the ignition off.
