Intermittent Fault

Intermittent Fault






Check passenger compartment temperature sensor and control module connectors for contact resistance and oxidation according to Checking wiring and terminals - Intermittent faults. Checking Wiring and Terminals

Check cable between ECC control module #B8 and passenger compartment temperature sensor terminal 4 for an intermittent open-circuit according to Checking wiring and terminals - Intermittent faults and an intermittent short-circuit to supply voltage according to Checking wiring and terminals - Intermittent faults. Checking Wiring and Terminals

Check cable between passenger compartment temperature sensor terminal 2 and ground terminal for an intermittent open-circuit according to Checking wiring and terminals - Intermittent faults. Checking Wiring and Terminals

Remedy as necessary.

Other information:

- Breakout box connection Connection of Breakout Box ECC
- Voltage on the control signal lead should be battery voltage approximately when the fan is activated. For other values refer to Signal Specifications ECC Signal Specification ECC