Signal Sporadic. Intermittent Fault

SIGNAL SPORADIC. INTERMITTENT FAULT





Checking Cables and Terminals

- Check outside temperature sensor and/or engine control module (ECM) connectors for loose connections, contact resistance and oxidation.
- Check cable between outside temperature sensor terminal 1 and engine control module (ECM) #A35 for an intermittent open-circuit, intermittent short-circuit to ground or an intermittent short-circuit to supply voltage.
- Check cable between outside temperature sensor terminal 2 and engine control module (ECM) #A18 for an intermittent open-circuit or an intermittent short-circuit to supply voltage.

Then continue with test step below.

Fault-Tracing Information

- For intermittent faults fault-tracing is not followed by a verification because the fault is not present at this moment.
- Do you want to repeat fault-tracing?

Yes:
- Return to Checking Cables and Terminals section below.

No:
- Operation done