Component Inspection

Component Inspection

Check DDM
1. Connect scantool to Data Link Connector (DLC).
2. Ignition "ON" & engine "OFF"
3. Substitute with a known-good DDM and Check if the DTC is erased
4. Is the DTC erased ?
YES
1) Substitute with a known-good DDM and check for proper operation.
If the problem is corrected, replace DDM and then go to "Verification of Vehicle Repair" procedure.
NO
1) Go to "Check IPM" procedure.
Check IPM
1. Connect scantool to Data Link Connector (DLC).
2. Ignition "ON" & engine "OFF"
3. Substitute with a known-good IPM and Check if the DTC is erased
4. Is the DTC erased ?
YES
1) Substitute with a known-good IPM and check for proper operation.
If the problem is corrected, replace IPM and then go to "Verification of Vehicle Repair" procedure.
NO
1) Check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration or damage. Repair or replace as necessary and then go to "Verification of Vehicle Repair" procedure.