Checking Components and Cables

Checking Components And Cables






Check outside temperature sensor resistance. For resistance values, see ECC electrical specifications.

Check cable between ECC control module #A19 and outside temperature sensor terminal 2 for an open-circuit according to Checking wiring and terminals - Permanent faults and a short-circuit to supply voltage according to Checking wiring and terminals - Permanent faults. Checking Wiring and Terminals

Check cable between control module #A22 and outside temperature sensor terminal 4 for an open circuit according to Checking wiring and terminals - Permanent faults and a short-circuit to supply voltage according to Checking wiring and terminals - Permanent faults. Checking Wiring and Terminals

Hint: A short-circuit on the ground lead can be caused by a short-circuit to supply voltage. Always check the signal cable for this fault cause as well.

Remedy as necessary.

Other information:

- To connect the breakout box Connection of Breakout Box ECC
- The voltage on the signal cable varies with temperature. At 20 °C (68 °F) voltage should be approximately 2.5 V. For other values, refer to Signal Specifications ECC Signal Specification ECC

After performing this procedure Verification