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
Ignition is in RUN or ACC position.
Circuit 113 shorted to ground or less than 0.20 volts.
• | No light will illuminate in I/P. |
• | Cannot vary wiper speed. |
• | B3702 is set in BCM. |
• | 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. |
• | 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 | |
2 |
Is the voltage less than 0.4 volts? | Go to Step 3 | Refer to Diagnostic Aids |
3 |
Is the voltage greater than 4.5 volts? | Go to Step 6 | Go to Step 4 |
4 |
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 |
Does the DTC reset? | Go to Step 2 | System OK |