B3702
DTC B3702CIRCUIT 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).
TEST
