GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Saturn 🢒 2004 🢒 VUE - AWD 🢒 DTC 🢒 DTC B3702

Object Number: 1239499 Size: MF
Master Electrical Component List
Wiper Switches and Washer Pump

Circuit Description

The intermittent switch in the windshield wiper washer switch is a voltage divider connected across the body control module (BCM) inputs circuit 113 and circuit 112. The wiper relay is energized by the BCM switching circuit 1445 to ground depending on delay switch position.

The intermittent wiper delay switch has three switch positions.

    • Delay 1 (500 ohms resistance)
    • Delay 2 (1000 ohms resistance)
    • Delay 3 (2000 ohms resistance)

Refer to Wiper/Washer System Description and Operation for the timing of each delay position.

Conditions for Running the DTC

Ignition is in RUN or ACC position.

Conditions for Setting the DTC

Circuit 113 shorted to ground or less than 0.20 volts.

Actions Taken When the DTC Sets
    • No light will illuminate in I/P.
    • Cannot vary wiper speed.
    • B3702 is set in BCM.

Conditions for Clearing the DTC
    • A current DTC clears when the fault is no longer present.
    • A history DTC clears when the module ignition cycle counter reaches the reset threshold, without a repeat of the fault.

Diagnostic Aids
    • Inspect wiring harness for damage. Check for broken or chaffed insulation.
    • If fault is suspected to be intermittent, wiggling harness wiring may help in locating fault.
    • Check for poor connection at the BCM. Inspect harness connectors for backed out terminals, improper terminal mating, broken connector locks, improperly formed or damaged terminals and poor terminal-to-wire connection (terminal crimped over wire insulation and not conductors).

Step

Action

Yes

No

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 ON the ignition, with the engine OFF.
  2. With a scan tool, observe the wiper delay input in the body control module (BCM) wiper/washer data list.

Is the voltage less than 0.4 volts?

Go to Step 3

Go to Diagnostic Aids

3
  1. Turn OFF the ignition.
  2. Disconnect the windshield wiper washer switch.
  3. Turn ON the ignition, with the engine OFF.
  4. With a scan tool, observe the wiper delay input in the body control module (BCM) wiper/washer data list.

Is the voltage greater than 4.5 volts?

Go to Step 6

Go to Step 4

4
  1. Turn OFF the ignition.
  2. Disconnect the BCM connector C3.
  3. Check continuity between the windshield wiper switch signal circuit and ground, then between the windshield wiper switch signal circuit, and the windshield wiper switch low reference circuit.

Is there continuity?

Go to Step 5

Go to Step 7

5

Repair a short to ground in the windshield wiper switch signal circuit or windshield wiper switch low reference circuit. Refer to Wiring Repairs or Connector Repairs in Wiring Systems.

Did you complete the repair?

Go to Step 8

--

6

Replace the windshield wiper washer switch. Refer to Turn Signal Multifunction Switch Replacement in Steering Wheel and Column.

Did you complete the replacement?

Go to Step 8

--

7

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 8

--

8
  1. Use the scan tool to clear the DTCs.
  2. Operate the vehicle within the conditions for running the DTC as specified in the supporting text.

Does the DTC reset?

Go to Step 2

System OK