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Home >> Pontiac >> 2004 >> Aztek Base, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 342 (Tire Pressure Monitoring System) >> Diagnostic Information and Procedures >> Diagnostic System Check - Tire Pressure Monitoring >> Test Description
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Test Description

WARNING: This page is about a different car, the 2004 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.

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

  1. 2:  Tests if the Remote Control Door Lock Receiver (RCDLR), which is part of the Remote Keyless Entry (RKE) 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. 3:  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. 4:  Tests if a malfunction exists in the RKE system, which controls the Tire Pressure Monitor (TPM) system.
  1. 5:  Tests if a malfunction exists in the TPM system.
Diagnostic System Check - Tire Pressure Monitoring

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
  1. Turn ON the ignition, with the engine OFF.
  2. Attempt to establish communication with the RCDLR.
Does the scan tool communicate with the RCDLR?
Go to Step 3  Go to Scan Tool Does Not Communicate with Class 2 Device in Data Link Communications
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 
Does the scan tool display any RKE DTCs? Go to Diagnostic Trouble Code (DTC) List in Keyless Entry Go to Step 5 
Does the scan tool display any TPM DTCs? Go to Diagnostic Trouble Code (DTC) List  System OK