FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
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Monitor DTC Status





U0100 No ID From ECU

Scantool Diagnostics - Monitor Scantool Data

Monitor Scantool Data

1. Connect scantool to data link connector (DLC)
2. Engine "ON".
3. Monitor the "CAN COMMUNICATION SERVICE DATA (ENGINE RPM, VEHICLE SPEED SENSOR, THROTTLE P. SENSOR)" parameters on the scantool
4. Compare it with referance data as below




5. Does "CAN BUS LINE DATA " follow the referance data?
YES
1) Fault is intermittent caused by poor contact in the sensor's and/or TCM (PCM)'s connector or was repaired and TCM (PCM) memory was not cleared. Throughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration or damage.Repair or replace as necessary and go to "Verification Vehicle Repair" procedure
NO
1) Go to "W/Harness Inspection" procedure