Diagnostic Aids
WARNING: This page is about a different variant/trim than selected.
- The starter generator position sensor circuits operate at very low current. These circuits are susceptible to moisture intrusion, coolant contamination, corrosion, and terminal damage. Extreme care must be taken when removing the starter generator, probing terminals and manipulating harnesses. Poor terminal connections can result in intermittent operation.
- If the customer comments that the problem occurs only during moist environmental conditions: rain, snow, vehicle wash, etc., inspect the sensor wiring and seals for signs of water intrusion.
- The sensor and reference circuit loops are a twisted pair with each pair covered in a grounded foil shield.
- The shield circuits are grounded inside the drive motor control module. Improperly grounded shield circuits may cause inaccurate sensor signals.