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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1746 (Wiper System And Washer System) >> Diagnostic Information and Procedures >> Wipers Always On

Wipers Always On

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.
Wipers Always On

Step Action Yes No
Schematic Reference: Wiper/Washer System Schematics 
Connector End View Reference: Master Electrical Component List in Wiring Systems
1 Did you perform the Wiper/Washer Diagnostic System Check? Go to Step 2  Go to Diagnostic System Check - Wiper/Washer 
2
  1. Turn the ignition ON.
  2. Turn the front and rear windshield wiper washer switch OFF.
Do the windshield wipers remain in the park position?		 Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems Go to Step 3 
3 Are the rear wipers always on? Go to Step 4  Go to Step 7 
4
  1. Turn OFF the ignition.
  2. Disconnect the rear wiper relay.
  3. Turn the ignition ON.
Do the rear wipers remain in the park position?		 Go to Step 5  Go to Step 6 
5
  1. Turn OFF the ignition.
  2. Connect a test lamp from the rear wiper relay control circuit and the battery side of the relay at the rear wiper relay.
  3. Turn the ignition ON.
Does the test lamp illuminate?		 Go to Step 8  Go to Step 15 
6 Test the rear wiper motor control circuit for a short to voltage.
Did you find and correct the condition?		 Go to Step 19  Go to Step 16 
7
  1. Turn OFF the ignition.
  2. Disconnect the harness connector of the windshield wiper washer switch.
  3. Turn the ignition ON.
Do the wipers stop?		 Go to Step 11  Go to Step 10 
8
  1. Turn OFF the ignition.
  2. Disconnect the harness connector C2 of the BCM.
  3. Turn the ignition ON.
  4. Connect a test lamp from the rear window wiper switch signal circuit and a good ground at the BCM.
Does the test lamp illuminate?		 Go to Step 9  Go to Step 13 
9
  1. Turn OFF the ignition.
  2. Disconnect the harness connector of the windshield wiper washer switch.
  3. Test the rear wiper switch control circuit for a short to voltage.
Did you find and correct the condition?		 Go to Step 19  Go to Step 14 
10 Test the high front wiper control circuit and the LOW/MIST front wiper control circuit for a short to voltage.
Did you find and correct the condition?		 Go to Step 19  Go to Step 16 
11
  1. Turn OFF the ignition.
  2. Reconnect the windshield wiper washer switch connector.
  3. Disconnect the BCM connector C2.
  4. Turn the ignition ON.
Do the wipers stop?		 Go to Step 13  Go to Step 12 
12 Test the front wiper input control circuit for a short to voltage.
Did you find and correct the condition?		 Go to Step 19  Go to Step 14 
13 Inspect for poor connections at the BCM. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.
Did you find and correct the condition?		 Go to Step 19  Go to Step 18 
14 Inspect for poor connections at the windshield wiper washer switch. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.
Did you find and correct the condition?		 Go to Step 19  Go to Step 17 
15 Replace the rear wiper relay. Refer to Relay Replacement (Within an Electrical Center) or Relay Replacement (Attached to Wire Harness) in Wiring Systems.
Did you complete the replacement?		 Go to Step 19  -
16 Replace the wiper motor. Refer to Wiper Motor Replacement .
Did you complete the replacement?		 Go to Step 19  -
17 Replace the windshield wiper washer switch. Refer to Multifunction, Turn Signal Switch Replacement in Steering Wheel and Column.
Did you complete the replacement?		 Go to Step 19  -
18
IMPORTANT: Perform the programming or set up procedure for the replaced control module if required.
Replace the BCM. Refer to Body Control Module Replacement in Body Control System for applicable replacement procedure.Did you complete the replacement?		 Go to Step 19  -
19 Operate the system in order to verify the repair.
Did you correct the condition?		 System OK Go to Step 2 
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