Diagnostic Aids

WARNING: This page is about a different car, the 2003 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.

When a shorted to battery voltage condition exists in circuit 2445 and the BCM has been requested to activate the rear wiper relay, the BCM will attempt to switch circuit 2445 to ground. High current flow will result and the BCM output will go into a protective state. The BCM output will not allow itself to be activated for as much as 3 minutes.
Check for poor connection at the BCM. Inspect harness connectors for backed out terminals, improper terminal mating, broken connectors locks, improperly formed or damaged terminals and poor terminal-to-wire connection, terminal crimped over wire insulation and not conductors.
Inspect wiring harness for damage. Check for broken or chaffed insulation.
Review all fail information as this may assist in determining the conditions when the fault occurs.
If fault is suspected to be intermittent, wiggling harness wiring may help in locating fault.

DTC B3723

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	Turn ON the ignition, with the engine OFF. With a scan tool, command the rear wiper relay ON and OFF under body control module special functions. Does relay follow command?	Refer to Diagnostic Aids	Go to Step 3
3	Turn OFF the ignition. Remove the rear wiper relay in underhood fuse block (UHFB). Connect the test lamp between rear wiper relay control circuit and the rear wiper motor switch at the rear wiper relay. Using a scan tool, command rear wiper relay ON and OFF. Does the test lamp follow command?	Go to Step 6	Go to Step 4
4	Turn OFF the ignition. Disconnect the BCM connector C3. Check for battery voltage on the rear wiper relay control circuit. Does the voltage exist on the rear wiper relay control circuit?	Go to Step 5	Go to Step 7
5	Repair short to battery in the rear wiper relay control circuit. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you complete the repair?	Go to Step 8	-
6	Replace the rear wiper relay. Refer to Relay Replacement (Within an Electrical Center) or Relay Replacement (Attached to Wire Harness) in Wiring Systems. 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	Use the scan tool to clear the DTCs. 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