NOTE:
Check the radio reception in an open area.
Compare it to a known-good vehicle of the same
model, year, and trim level whenever possible.
If necessary, have the customer demonstrate the
symptom.
Poor reception/interference can be caused by the following.
The radio station is far away.
NOTE: Before you troubleshoot, record all freeze data
and any on-board snapshot, and review the general
troubleshooting information.
1. Check for poor connections or loose terminals at
ECT sensor 1/2 and the IAT sensor.
Are the connections and terminals OK?
YES-Go to step 2.
NO-Repair the connecto