Well , you could pull the fuse till you have it checked ! could have a relay with stuck contacts ! I'll need to open my Cadillac repair info on my lap top an see what it says about it >I'll get back to you
After reading how it's suppose to work ,i'd say your going to need the motor assembly with Rear wiper motor module . Rear Wiper/Washer System Operation The rear wiper motor module is part of the rear wiper motor assembly and controls wiper motor operation. Battery voltage supplied to the wiper motor assembly is used to operate the wiper motor in all modes and to return the rear wiper arm to the park position after the ignition is turned off. Accessory voltage supplied to the rear wiper/washer switch is used to supply the rear wiper switch signal circuits and the rear washer pump. When the rear wiper switch is in the DELAY position the accessory voltage to the rear wiper/washer switch is closed to the wiper switch signal circuit. The accessory voltage on the wiper switch signal circuit causes the wiper motor module to operate the wiper motor in the DELAY mode. The rear washer control circuit is used to provide the operating voltage for the rear washer pump for as long as the rear washer switch is pressed. The rear washer control circuit is also used as a wash signal to the rear wiper motor module. When the rear wiper/washer switch or ignition switch is turned OFF during a rear wiper motor cycle, the park switch within the wiper motor assembly supplies battery voltage to continue wiper motor operation until the wiper motor reaches the park position and the switch opens.After reading how it's suppose to work ,i'd say your going to need the motor assembly with Rear wiper motor module . Rear Wiper/Washer System Operation The rear wiper motor module is part of the rear wiper motor assembly and controls wiper motor operation. Battery voltage supplied to the wiper motor assembly is used to operate the wiper motor in all modes and to return the rear wiper arm to the park position after the ignition is turned off. Accessory voltage supplied to the rear wiper/washer switch is used to supply the rear wiper switch signal circuits and the rear washer pump. When the rear wiper switch is in the DELAY position the accessory voltage to the rear wiper/washer switch is closed to the wiper switch signal circuit. The accessory voltage on the wiper switch signal circuit causes the wiper motor module to operate the wiper motor in the DELAY mode. The rear washer control circuit is used to provide the operating voltage for the rear washer pump for as long as the rear washer switch is pressed. The rear washer control circuit is also used as a wash signal to the rear wiper motor module. When the rear wiper/washer switch or ignition switch is turned OFF during a rear wiper motor cycle, the park switch within the wiper motor assembly supplies battery voltage to continue wiper motor operation until the wiper motor reaches the park position and the switch opens.
Connector End View Reference: Wiper/Washer Connector End Views
1 Did you review the Rear Wiper/Washer System Description and Operation and perform the necessary inspections? YES - Go to Step 2 Go to Symptoms - Wiper/Washer Systems
2 Turn the ignition ON. Turn the rear wiper/washer switch to the OFF position. Is the rear wiper always ON? YES - Go to Step 3 NO - Go to Testing for Intermittent Conditions and Poor Connections
3 Disconnect the rear wiper motor connector. Turn the rear wiper/washer switch to the OFF position. Connect a test lamp from the rear wiper switch signal circuit terminal in the rear wiper motor harness connector to ground. Turn the ignition ON. Does the test lamp illuminate? YES - Go to Step 5 NO - Go to Step 4
4 Connect a test lamp from the rear washer pump control circuit terminal in the rear wiper motor harness connector to ground. Turn the ignition ON. Does the test lamp illuminate? YES - Go to Step 6 NO - Go to Step 8
5 Test the rear wiper switch signal circuit for a short to voltage. Refer to Circuit Testing and Wiring Repairs .
Did you find and correct the condition? YES - Go to Step 9 NO - Go to Step 7
6 Test the rear washer pump control circuit for a short to voltage. Refer to Circuit Testing and Wiring Repairs .
Did you find and correct the condition? YES - Go to Step 9 NO - Go to Step 7
7 Replace the rear wiper/washer switch. Refer to Rear Window Wiper and Washer Switch Replacement .
Is the repair complete? Go to Step 9 --
8 Replace the rear wiper motor. Refer to Liftgate Wiper Motor Replacement .
Is the repair complete? Go to Step 9 --
9 Operate the system in order to verify the repair.
Did you correct the condition? System OK Go to Step 3Rear Wiper Always On Step Action Yes No Schematic Reference: Wiper/Washer Schematics Connector End View Reference: Wiper/Washer Connector End Views 1 Did you review the Rear Wiper/Washer System Description and Operation and perform the necessary inspections? YES - Go to Step 2 Go to Symptoms - Wiper/Washer Systems 2 Turn the ignition ON. Turn the rear wiper/washer switch to the OFF position. Is the rear wiper always ON? YES - Go to Step 3 NO - Go to Testing for Intermittent Conditions and Poor Connections 3 Disconnect the rear wiper motor connector. Turn the rear wiper/washer switch to the OFF position. Connect a test lamp from the rear wiper switch signal circuit terminal in the rear wiper motor harness connector to ground. Turn the ignition ON. Does the test lamp illuminate? YES - Go to Step 5 NO - Go to Step 4 4 Connect a test lamp from the rear washer pump control circuit terminal in the rear wiper motor harness connector to ground. Turn the ignition ON. Does the test lamp illuminate? YES - Go to Step 6 NO - Go to Step 8 5 Test the rear wiper switch signal circuit for a short to voltage. Refer to Circuit Testing and Wiring Repairs . Did you find and correct the condition? YES - Go to Step 9 NO - Go to Step 7 6 Test the rear washer pump control circuit for a short to voltage. Refer to Circuit Testing and Wiring Repairs . Did you find and correct the condition? YES - Go to Step 9 NO - Go to Step 7 7 Replace the rear wiper/washer switch. Refer to Rear Window Wiper and Washer Switch Replacement . Is the repair complete? Go to Step 9 -- 8 Replace the rear wiper motor. Refer to Liftgate Wiper Motor Replacement . Is the repair complete? Go to Step 9 -- 9 Operate the system in order to verify the repair. Did you correct the condition? System OK Go to Step 3
Answers & Comments
Remove fuse and re connect it
Well , you could pull the fuse till you have it checked ! could have a relay with stuck contacts ! I'll need to open my Cadillac repair info on my lap top an see what it says about it >I'll get back to you
After reading how it's suppose to work ,i'd say your going to need the motor assembly with Rear wiper motor module .
Rear Wiper/Washer System Operation
The rear wiper motor module is part of the rear wiper motor assembly and controls wiper motor operation. Battery voltage supplied to the wiper motor assembly is used to operate the wiper motor in all modes and to return the rear wiper arm to the park position after the ignition is turned off. Accessory voltage supplied to the rear wiper/washer switch is used to supply the rear wiper switch signal circuits and the rear washer pump. When the rear wiper switch is in the DELAY position the accessory voltage to the rear wiper/washer switch is closed to the wiper switch signal circuit. The accessory voltage on the wiper switch signal circuit causes the wiper motor module to operate the wiper motor in the DELAY mode. The rear washer control circuit is used to provide the operating voltage for the rear washer pump for as long as the rear washer switch is pressed. The rear washer control circuit is also used as a wash signal to the rear wiper motor module. When the rear wiper/washer switch or ignition switch is turned OFF during a rear wiper motor cycle, the park switch within the wiper motor assembly supplies battery voltage to continue wiper motor operation until the wiper motor reaches the park position and the switch opens.
Rear Wiper Always On
Step
Action
Yes
No
Schematic Reference: Wiper/Washer Schematics
Connector End View Reference: Wiper/Washer Connector End Views
1
Did you review the Rear Wiper/Washer System Description and Operation and perform the necessary inspections?
YES - Go to Step 2
Go to Symptoms - Wiper/Washer Systems
2
Turn the ignition ON.
Turn the rear wiper/washer switch to the OFF position.
Is the rear wiper always ON?
YES - Go to Step 3
NO - Go to Testing for Intermittent Conditions and Poor Connections
3
Disconnect the rear wiper motor connector.
Turn the rear wiper/washer switch to the OFF position.
Connect a test lamp from the rear wiper switch signal circuit terminal in the rear wiper motor harness connector to ground.
Turn the ignition ON.
Does the test lamp illuminate?
YES - Go to Step 5
NO - Go to Step 4
4
Connect a test lamp from the rear washer pump control circuit terminal in the rear wiper motor harness connector to ground.
Turn the ignition ON.
Does the test lamp illuminate?
YES - Go to Step 6
NO - Go to Step 8
5
Test the rear wiper switch signal circuit for a short to voltage. Refer to Circuit Testing and Wiring Repairs .
Did you find and correct the condition?
YES - Go to Step 9
NO - Go to Step 7
6
Test the rear washer pump control circuit for a short to voltage. Refer to Circuit Testing and Wiring Repairs .
Did you find and correct the condition?
YES - Go to Step 9
NO - Go to Step 7
7
Replace the rear wiper/washer switch. Refer to Rear Window Wiper and Washer Switch Replacement .
Is the repair complete?
Go to Step 9
--
8
Replace the rear wiper motor. Refer to Liftgate Wiper Motor Replacement .
Is the repair complete?
Go to Step 9
--
9
Operate the system in order to verify the repair.
Did you correct the condition?
System OK
Go to Step 3