Signal Too Low

ECM-1100 OUTSIDE TEMPERATURE SENSOR
SIGNAL TOO HIGH

DTC Status ECM-1100 Outside Temperature Sensor. Signal Too Low
Reading of DTC status ECM-1100




Note! When Reading the DTC status, other stored Diagnostic Trouble Codes (DTCs) and their status will be listed.

- Read the DTC status. Check the status of the relevant Diagnostic Trouble Code (DTC).

Was the status of the relevant Diagnostic Trouble Code (DTC) displayed as permanent?

Yes - Conitune below.
No - Signal Too Low - Intermittent Fault


Checking Wiring And Components



Check outside temperature sensor resistance. For resistance value, Outside Temperature Sensor

Check signal cable between control module connector # B29 (# B41) and outside temperature sensor terminal 1 for a short-circuit to ground according to [1][2]Checking Wiring and Terminals. Permanent Fault

Hint: With the ignition on and outside temperate sensor connector disconnected the voltage between terminal 1 and ground terminal should be approximately 5 V.

Remedy as necessary

Other information
- To connect the breakout box, Connecting the Breakout Box (ECM)
- To localize the outside temperature sensor, Locations
- For information about signals, Pinout Values and Diagnostic Parameters


Verification



Hint: After carrying out the repair, check that the fault has been remedied.
- Ignition off.
- Reconnect connectors, reinstall components.
- Ignition on.
- Read outside temperature.

Is the temperature within its permitted range?
Yes - Testing Complete.
No - Continue below.


Fault-tracing information
The fault should have been detected and remedied. As this is not the case fault-tracing has failed. Exit fault tracing for this diagnostic trouble code (DTC) or make another attempt.