IPM-0E

IPM-0E-ATC (AUTOMATIC TEMPERATURE CONTROL MODULE) COMMUNICATION FAULT

For a complete wiring diagram Consult Diagrams/Electrical

- When Monitored:
Continuously with the ignition in run.

- Set Condition:
The IPM does not receive any messages from the ATC. Time to mature for the BCM, PDM and DDM is 5 seconds. Time to mature for the IPM is 10 seconds.





Diagnostic Test

1. ATTEMPT TO COMMUNICATE WITH THE ATC
Turn the ignition on.
With the scan tool, select ECU View.
Verify that the ATC is active on the bus.
Is the ATC active on the bus?

Yes

- Go To2

No

- Perform the No Response diagnostic procedure. Communications - Verbose Codes

2. CHECK FOR ADDITIONAL COMMUNICATION RELATED DTC'S
With the scan tool, select Network View and select Advanced.
Is there more than one module with active DTC's "Logged Against" the ATC?

Yes

- Replace/update the ATC.
- Perform the BODY VERIFICATION TEST - VER 1. Body Verification Test.

No

- Replace/update the module that set this DTC.
- Perform the BODY VERIFICATION TEST - VER 1. Body Verification Test.