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Home >> GMC >> 2002 >> Jimmy 2D Utility, Part Time, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 1749 (Wiper System And Washer System) >> Diagnostic Information and Procedures >> Diagnostic System Check - Wiper/Washer >> Test Description

Test Description

WARNING: This page is about a different car, the 2003 Saturn Vue. 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:  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 function of the class 2 serial data circuit. The specified procedure will determine the particular condition.
  2. 4:  The presence of DTCs which began with U indicate some other module is not communicating. The specified procedure will compile all the available information before tests are performed.
Diagnostic System Check - Wiper/Washer

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 body control module (BCM).
Does the scan tool communicate with the body control module?
Go to Step 3  Go to Scan Tool Does Not Communicate with Class 2 Device in Data Link Communications
3 Select the display DTCs function on the scan tool for the BCM.
Does the scan tool display any DTCs?
Go to Step 4  Go to Symptoms - Wiper/Washer Systems 
Does the scan tool display any DTCs which begin with a "U"? Go to Scan Tool Does Not Communicate with Class 2 Device in Data Link Communications Go to Step 5 
5 Does the scan tool display DTC B1000, B1001, B1372, or B1382? Go to Diagnostic Trouble Code (DTC) List in Body Control System Go to Step 6 
6 Does the scan tool display DTC B1327 or B1328? Go to Diagnostic Trouble Code (DTC) List in Engine Electrical Go to Diagnostic Trouble Code (DTC) List