Diagnostic System Check - Remote Keyless Entry

Diagnostic Chart:

TEST DESCRIPTION
The number(s) below refer to the step number(s) on the diagnostic table.
2. Lack of communication may be due to a partial malfunction of the class 2 serial data circuit or due to a total malfunction of the class 2 serial data circuit. The specified procedure will determine the particular condition.
3. The symptoms list in Symptoms will determine the correct diagnostic procedure to use.
4. The presence of DTCs U1161, U1162 or U1170 indicate one or more of the door modules is not communicating on the SBI circuits.
5. The presence of DTCs which begin with U indicate some other module is not communicating. The specified procedure will compile all the available information before tests are performed.
7. At this point you have determined all DTCs applicable to the remote keyless entry system. Refer to Symptoms for further remote keyless entry diagnosis. Any other codes displayed from the listed modules do not apply to remote keyless entry and should be diagnosed in their applicable section.