GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Cadillac 🢒 2003 🢒 Seville 🢒 Suspension 🢒 Tire Pressure Monitoring 🢒 Diagnostic System Check - Tire Pressure Monitoring

Test Description

The numbers below refer to the step numbers on the diagnostic table.

  1. Tests if the Remote Control Door Lock Receiver (RCDLR), which is part of the Remote Function Actuation (RFA) system, is able to communicate with the scan tool. 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.

    2.

  2. The presence of DTCs which begin with "U" indicate some other module is not communicating. The specified procedure will compile all available information before tests are performed.

    3.

  3. Tests if a malfunction exists in the RKE system, which controls the Tire Pressure Monitor (TPM) system.

  1. Tests if a malfunction exists in the TPM system.

Step

Action

Yes

No

1

Install a scan tool.

Does the scan tool power up?

Go to Step 2

Go to Scan Tool Does Not Power Up in Data Link Communications

2

  1. Turn ON the ignition, with the engine OFF.
  2. Attempt to establish communication with the RCDLR or RFA.

Does the scan tool communicate with the RCDLR or RFA?

Go to Step 3

Go to Scan Tool Does Not Communicate with Class 2 Device in Data Link Communications

3

Select the RKE Diagnostic Trouble Codes (DTC) function on the scan tool.

Does the scan tool display any DTCs that begin with a "U"?

Go to Diagnostic Trouble Code (DTC) List in Data Link Communications.

Go to Step 4

4

Does the scan tool display any RKE DTCs?

Go to Diagnostic Trouble Code (DTC) List in Keyless Entry

Go to Step 5

5

Does the scan tool display any TPM DTCs?

Go to Diagnostic Trouble Code (DTC) List

System OK