LEMON Manuals: Even more car manuals for everyone
Home >> Buick >> 2007 >> Lucerne CX >> Repair and Diagnosis >> External Pages >> Different car >> Section 198 (Wiper System & Washer System) >> Diagnostic Information and Procedures >> Washers Inoperative

Washers Inoperative

WARNING: This page is about a different car, the 2006 Pontiac Montana SV6, 2006 Chevrolet Uplander, and 2006 Buick Terraza. However, it is still accessible from the selected car via links, so may be relevant.
Washers Inoperative

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 Diagnostic System Check - Vehicle? Go to Step 2  Go to Diagnostic System Check - Vehicle in Vehicle DTC Information
2
  1. Turn the ignition to the ON position.
  2. Press the windshield washer switch.
Does the windshield washer pump operate?
Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems Go to Step 3 
3
  1. Disconnect the body control module (BCM) connector C1.
  2. Install a fused jumper between battery positive voltage and the windshield washer pump control circuit.
Does the windshield washer fluid pump operate?
Go to Step 6  Go to Step 4 
4
  1. Disconnect the windshield washer pump.
  2. Connect the BCM connector C1.
  3. Using a test lamp probe between windshield washer pump control circuit and ground.
  4. Turn the ignition to the ON position.
  5. Press the washer switch.
Does the test lamp illuminate?
Go to Step 5  Go to Step 8 
5 Test for a poor connection or an open in the ground circuit of the windshield washer fluid pump. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you find and correct the condition?
Go to Step 12  Go to Step 9 
6
  1. Disconnect the windshield wiper/washer switch.
  2. Install a jumper between windshield washer switch signal circuit and ground.
  3. Turn the ignition to the ON position.
Does the windshield washer fluid pump operate?
Go to Step 10  Go to Step 7 
7 Test for a poor connection, an open or a short to battery positive voltage in the windshield washer switch signal circuit. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you find and correct the condition?
Go to Step 12  Go to Step 11 
8 Repair a poor connection, an open or a short to ground in the windshield washer pump control circuit. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you complete the repair?
Go to Step 12  -
9 Replace the windshield washer fluid pump. Refer to Washer Pump Replacement .
Did you complete the replacement?
Go to Step 12  -
10 Replace the windshield washer switch. Refer to Multifunction, Turn Signal Switch Replacement in Steering Wheel and Column.
Did you complete the replacement?
Go to Step 12  -
11 Replace the BCM. Refer to Control Module References in Computer/Integrating Systems for replacement, setup and programming.
Did you complete the replacement?
Go to Step 12  -
12 Operate the system to verify the repair.
Did you correct the condition?
System OK Go to Step 3