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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 675 (Wiper System & Washer System) >> Diagnostic Information and Procedures >> Wipers Inoperative - All Modes

Wipers Inoperative - All Modes

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Wipers Inoperative - All Modes

Step Action Yes No
Schematic Reference:  Wiper/Washer System Schematics  
1 Did you review the Wiper/Washer System Description and Operation and perform the necessary inspections? Go to Step 2  Go to Symptoms - Wiper/Washer Systems 
2
  1. Turn the ignition switch ON.
  2. Operate the windshield wiper/washer switch through all the switch positions.
Does the windshield wiper/washer system operate normally?
Go to TESTING FOR INTERMITTENT AND POOR CONNECTIONS Go to Step 3 
3
  1. Disconnect the windshield wiper motor connector.
  2. Connect a test lamp from the accessory voltage supply circuit terminal in the harness connector to a good ground.
  3. Turn the ignition ON.
Does the test lamp illuminate?
Go to Step 4  Go to Step 7 
4
  1. Connect a test lamp from the accessory voltage supply circuit terminal to the ground circuit terminal in the windshield wiper motor harness connector.
  2. Turn the ignition ON.
Does the test lamp illuminate?
Go to Step 5  Go to Step 8 
5
  1. Connect a test lamp from the windshield wiper switch signal 2 circuit terminal in the windshield wiper motor harness connector to ground.
  2. Turn the ignition ON.
  3. Press the windshield washer switch.
Does the test lamp illuminate?
Go to Step 10  Go to Step 6 
6
  1. Disconnect the windshield wiper/washer switch connector.
  2. Connect a test lamp from the accessory voltage supply circuit terminal in the harness connector to ground.
  3. Turn the ignition ON.
Does the test lamp illuminate?
Go to Step 12  Go to Step 9 
7 Repair the windshield wiper motor accessory voltage supply circuit for an open or short to ground. Refer to WIRING REPAIRS or CONNECTOR REPAIRS .
Is the repair complete?
Go to Step 14  -
8 Repair the windshield wiper motor ground circuit for an open or high resistance. Refer to WIRING REPAIRS or CONNECTOR REPAIRS .
Is the repair complete?
Go to Step 14  -
9 Repair the windshield wiper/washer switch accessory voltage supply circuit for an open or short to ground. Refer to WIRING REPAIRS or CONNECTOR REPAIRS .
Is the repair complete?
Go to Step 14  -
10 Inspect for poor connections at the windshield wiper motor. Refer to TESTING FOR INTERMITTENT AND POOR CONNECTIONS and CONNECTOR REPAIRS .
Did you find and correct the condition?
Go to Step 14  Go to Step 11 
11 Replace the windshield wiper motor. Refer to Wiper Motor Replacement .
Is the repair complete?
Go to Step 14  -
12 Inspect for poor connections at the windshield wiper/washer switch. Refer to TESTING FOR INTERMITTENT AND POOR CONNECTIONS and CONNECTOR REPAIRS .
Did you find and correct the condition?
Go to Step 14  Go to Step 13 
13 Replace the windshield wiper/washer switch. Refer to MULTIFUNCTION, TURN SIGNAL, AND HAZARD SWITCH REPLACEMENT - ON VEHICLE .
Is the repair complete?
Go to Step 14  -
14 Operate the system in order to verify the repair.
Did you correct the condition?
System OK Go to Step 3