Scantool Diagnostics

Transmission

Automatic Transaxle - U0122 Lost Com. With ESP (ESP) - Scantool Diagnostics

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 scan tool








FIG.1) Low-RPM
FIG.2) High-RPM
4. 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