Signal Too High - Intermittent Fault

ECM-1100 OUTSIDE TEMPERATURE SENSOR
SIGNAL TOO HIGH - INTERMITTENT FAULT

Checking Wiring And Connectors



Check the Control module and outside temperature sensor connectors for contact resistance and oxidation according to [1][2]Checking Wiring and Terminals. Intermittent Faults and loose connections according to [1][2]Checking Wiring and Terminals. Intermittent Faults

Check the signal cable between control module connector # B29 (# B41) and outside temperature sensor terminal 1 for an intermittent open-circuit according to [1][2]Checking Wiring and Terminals. Intermittent Faults and an intermittent short-circuit to supply voltage according to [1][2]Checking Wiring and Terminals. Intermittent Faults

Check the ground lead between control module # B4 (# B16) and outside temperature sensor terminal 2 for an intermittent open-circuit according to [1][2]Checking Wiring and Terminals. Intermittent Faults

Other information:
- To connect the breakout box, Connecting the Breakout Box (ECM)
- To access/replace the control module, Engine Control Module (ECM), Replacing
- To localize the outside temperature sensor, Locations
- For information about signals, Pinout Values and Diagnostic Parameters


Fault-tracing information
If the fault is intermittent, do not verify fault-tracing if the fault does not recur.