Power window relay how to check - 2004 Pontiac Bonneville

Bad relay more then likely .
Power Window Operation
The power window system operates under the control of the accessory delay relay. The instrument cluster module (ICM) grounds the relay coil to provide power to the power window system & the radio .

Symptom Chart Condition Possible Sources Action

• All power windows are inoperative

• Fuse(s).
• Circuitry.
• Instrument cluster module (ICM).
• Accessory delay relay.
• Driver window control switch.

• Go To Pinpoint Test A .

The first step to diagnose this problem would be to hook up a factory scan tool an check for DTC'S - diagnostic trouble code's in the ICM . If no codes do pin point test A
Pinpoint Test A: All Power Windows Are Inoperative
Normal Operation Under normal operation the instrument cluster module grounds the accessory delay relay through circuit 1004 (LB/RD). Power is sent to the driver window control switch through circuit 400 (LB/BK) from the accessory delay relay. The driver window control switch is grounded through circuit 1205 (BK).

Possible Causes
• Fuse(s)
• Open in circuits 400 (LB/BK), 1205 (BK) or 1004 (LB/RD)
• Damaged accessory delay relay
• Damaged CJB
• Inoperative ICM
• Inoperative driver window control switch
• INPOINT TEST A: ALL POWER WINDOWS ARE INOPERATIVE Test Step Result / Action to Take A1 CHECK THE VOLTAGE TO THE DRIVER WINDOW CONTROL SWITCH - CIRCUIT 400 (LB/BK)
  • Disconnect: Driver Window Control Switch C504a.
  • Key in ON position.
  • Measure the voltage between driver window control switch C504a-6, circuit 400 (LB/BK) harness side and ground.
  • Is the voltage greater than 10 volts?
  Yes
  GO to A2 .
  
  No
  GO to A3 . A2 CHECK THE GROUND TO THE DRIVER WINDOW CONTROL SWITCH - CIRCUIT 1205 (BK)
  • Key in OFF position.
  • Measure the resistance between driver window control switch C504a-2, circuit 1205 (BK) harness side and ground.
  • Is the resistance less than 5 ohms?
  Yes
  INSTALL a new driver window control switch. REFER to Window Control Switch in this section. TEST system for normal operation.
  
  No
  REPAIR the circuit. TEST the system for normal operation. A3 CHECK THE ACCESSORY DELAY RELAY
  • Key in OFF position.
  • Disconnect: Accessory Delay Relay.
  • Carry out the accessory delay relay component test. Refer to Wiring Diagrams Cell 149 for schematic and connector information.
  • Is the accessory delay relay OK?
  Yes
  GO to A4 .
  
  No
  INSTALL a new accessory delay relay. TEST the system for normal operation. A4 CHECK THE POWER TO THE ACCESSORY DELAY RELAY
  • Key in ON position.
  • Measure the voltage between ground and accessory delay relay socket pin 85 and pin 30 harness side.
  • Is the voltage greater than 10 volts?
  Yes
  GO to A5 .
  
  No
  REPAIR the power supply circuit or central junction box (CJB). TEST the system for normal operation. A5 CHECK CIRCUIT 400 (LB/BK) FOR AN OPEN
  • Key in OFF position.
  • Measure the resistance between driver window control switch C504a-6, circuit 400 (LB/BK) and accessory delay relay socket pin 87, circuit 400 (LB/BK) harness side.
  • Is the resistance less than 5 ohms?
  Yes
  GO to A6 .
  
  No
  REPAIR the circuit. TEST the system for normal operation. A6 CHECK CIRCUIT 1004 (LB/RD) FOR AN OPEN
  • Disconnect: Instrument Cluster Module (ICM) C220a.
  • Measure the resistance between accessory delay relay socket pin 85, and ICM C220a-5, circuit 1004 (LB/RD).
  • Is the resistance less than 5 ohms?
  Yes
  INSTALL a new ICM. REFER to Section 413-01 . TEST the system for normal operation.
  
  No
  REPAIR the circuit. TEST the system for normal operation
• If you don't understand any of this , your best bet mite be to have a qualified repair shop look at it .

It's possible, your power window control gets ignition feed, meaning the circuit goes hot with the key on. If that is the case, I'd have to check feed to and from your ignition switch.
My info showed power window relay, the control side of relay needs voltage and ground, the voltage appears to come from radio fuse, that fuse goes hot with the key on. When problem is ongoing, use a test light on that fuse, to check for voltage, key on.
You can also check the power window relay. Usually the load side of relay is terminals 30 and 87. The control side of relay is terminals 85 and 86.

First check Power Window Relay. Relay Center is under hood, upper driver corner.

• A simple way to check this power window Relay, Disconnect Battery.
  
  • (Let car sit a few Minutes before reconnecting Battery)
• Remove Power Window Relay.
• Start Car, If nothing changed, Relay NO GOOD

This for power windows. The diagram should be enough to get you started on diagnostics. Check fuses and circuit breaker, also check for voltage on those circuits, use a test light to check for voltage. The accessory relay has to be energized. If you have voltage at load side of relay, you can bypass relay, with relay unplugged, use proper size jumper wire between terminals 30 and 87, the power windows should work. If so, the problem should be on the control/coil side of relay, voltage and ground, as you can see the instrument cluster grounds the coil side of relay.
I haven't looked at your audio yet?

I assume everything else works so start with the schematics and determine which fuse(s) and circuit(s) these power windows are on. Find the fuses. If these are OK, check wires for shorts, breaks and/or loose connections. If they are OK, check power window switches, then you'll probably have to deal with the window motors and connections.

Power window usually don't have a fuse but an automatically resetting breaker. If all four windows stopped working at the same time check the body control module that is what manages the power windows. Good luck.

Power is supplied to the Power windows and sunroof through the power window circuit breaker. That circuit breaker is supplied power through the RAP (retained accessory power) Relay, the RAP relay also supplies power to the radio. The RAP relay is also fuse protected by the RAP fuse in the under hood fuse block. The RAP relay is energized by the BCM body control module.

The RAP relay is responsible for the radio and windows working after the igntion is turned off.

The first place to check would be the RAP fuse in the under hood fuse block and then the RAP relay in the Body fuse block.

A list of the BODY relay block located on the left side of the dash to the right of the interior fuse block is below:

(1) Park Lamp Relay (2) Courtesy Lamp Relay (3) Retained Accessory Power (RAP) Relay (4) Power Seats Circuit Breaker (5) Power Windows Circuit Breaker (6) Inadvertent Power Relay (7) Door Lock Relay (8) Headlamp Ground Relay (9) Driver Door Unlock Relay (10) Door Unlock Relay(1) Park Lamp Relay
(2) Courtesy Lamp Relay
(3) Retained Accessory Power (RAP) Relay
(4) Power Seats Circuit Breaker
(5) Power Windows Circuit Breaker
(6) Inadvertent Power Relay
(7) Door Lock Relay
(8) Headlamp Ground Relay
(9) Driver Door Unlock Relay
(10) Door Unlock Relay
(1) Park Lamp Relay (2) Courtesy Lamp Relay (3) Retained Accessory Power (RAP) Relay (4) Power Seats Circuit Breaker (5) Power Windows Circuit Breaker (6) Inadvertent Power Relay (7) Door Lock Relay (8) Headlamp Ground Relay (9) Driver Door Unlock Relay (10) Door Unlock Relay (1) Park Lamp Relay (2) Courtesy Lamp Relay (3) Retained Accessory Power (RAP) Relay (4) Power Seats Circuit Breaker (5) Power Windows Circuit Breaker (6) Inadvertent Power Relay (7) Door Lock Relay (8) Headlamp Ground Relay (9) Driver Door Unlock Relay (10) Door Unlock Relay

I’m happy to help further over the phone at https://www.6ya.com/expert/jeremy_69f3cc28d95bf514

Check for voltage to the motors when using the buttons,it is most likely the main window control,cause it is the circuit it has to go threw,or the motors are bad.

Not common to have all those gadget fail at the same time. check the switch unit it self,windows switch and mirrors switch can be faulty. make sure all fuses and relays are good and windows. on cruise control can be many factor, have the unit check. fuses and relays are cheap at junk yard. some of the nissan relays are switchable by using ac relay to power window relay as long it has the same voltage. It should have the marking on the side.

did you check relays and fuses under the hood . check on the lid of the box that contains the fuses and relays to see if your power windows and locks are on that lid for directions to the relay. then try switching one of the other relays with same number to see if this makes them work