Amanti V6-3.8L (2007)
Engine Control Module: Component Tests and General Diagnostics
PCM PROBLEM INSPECTION PROCEDURE
1. TEST PCM GROUND CIRCUIT: Measure resistance between PCM and chassis ground using the backside of PCM harness connector as PCM
side check point. If the problem is found, repair it.
Specification (Resistance): 1 ohm or less
2. TEST PCM CONNECTOR: Disconnect the PCM connector and visually check the ground terminals on PCM side and harness side for bent pins
or poor con- tact pressure. If the problem is found, repair it.
3. If problem is not found in Step 1 and 2, the PCM could be faulty. If so, replace the PCM with a new one, and then check the vehicle again. If the
vehicle operates normally then the problem was likely with the PCM.
4. RE-TEST THE ORIGINAL PCM : Install the original PCM (may be broken) into a known-good vehicle and check the vehicle. If the problem
occurs again, replace the original PCM with a new one. If problem does not occur, this is intermittent problem (Refer to INTERMITTENT
PROBLEM PROCEDURE in BASIC INSPECTION PROCEDURE). See: Powertrain Management/Computers and Control Systems/Testing and
Inspection/Component Tests and General Diagnostics/Basic Inspection Procedure (Measuring Condition of Electronic Parts' Resistance Through
Check Short Circuit)
