B3717

DTC B3717

CIRCUIT DESCRIPTION
The body control module (BCM) monitors the voltage level on the control circuit of the wiper micro relay. The voltage level should be low while the wiper micro relay is commanded OFF. The voltage should be near system voltage when the BCM energizes the wiper micro relay. If the circuit is shorted low or high, DTC B3171 or B3718 will set.

DTC DESCRIPTORS
This diagnostic procedure supports the following DTCs:
- DTC B3717 Front Wiper Relay Drive Circuit Low
- DTC B3718 Front Wiper Relay Drive Circuit High

CONDITIONS FOR RUNNING THE DTCS
- The ignition is ON.
- The ignition voltage is between 9-18.5 Volts.

CONDITIONS FOR SETTING THE DTCs
The following conditions will cause these DTCs to set:
- DTC B3717, the BCM detects a low voltage level on the supply circuit of the wiper micro relay for 1 second when the relay is energized.
- DTC B3718, the BCM detects a high voltage level on the supply circuit of the wiper micro relay for 1 second when the relay is de-energized.

ACTION TAKEN WHEN THE DTC SETS
The BCM de-energizes the wiper micro relay, until the wiper switch is turned OFF and ON.

CONDITIONS FOR CLEARING THE DTCS
- DTC B3717 will change from current to history when the windshield wiper switch is turned OFF and ON, and the condition is no longer present.
- DTC B3718 will change from current to history when the condition is no longer present.
- A history DTC will clear after 100 ignition cycles, without a repeat of the malfunction.

TEST

Steps 1 - 6:

Steps 7 - 10:

Steps 11 - 15:

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Steps 21 - 28:

Steps 29 - 32: