3.
Monitor "Alternator duty cycle, PWM signal" parameter on GDS
Connect GDS to Data Link Connector(DLC).
Engine start.
Monitor "Alternator duty cycle, PWM signal" parameter on GDS
Are the parameters displayed correctly ?
 | ▶ Fault is intermittent caused by poor contact in the sensor’s and/or ECM’s connector or was repaired and ECM memory was not cleared. Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair or replace as necessary and go to "Verification of vehicle Repair" procedure. |
 | ▶ Go to "Terminal & Connector Inspection" procedure |
