Pinpoint Test G: The Delayed Accessory Relay Does Not Turn Off

Glass, Frames and Mechanisms

Pinpoint Test G: The Delayed Accessory Relay Does Not Turn Off

Normal Operation

The accessory delay relay is located in the Body Control Module (BCM). When the ignition is turned to the RUN position, the BCM (Body Control Module) activates the accessory delay relay by grounding the relay coil. When the ignition is turned to the OFF position, the BCM (Body Control Module) continues to ground the accessory delay relay coil for approximately 10 minutes, or until a front door is opened. When the accessory delay relay is active, power is sent to the power window system, power sliding window (if equipped) and roof opening panel (if equipped).

- DTC B131A:14 (Delayed Accessory Power: Circuit Short To Ground or Open)- sets when the BCM (Body Control Module) senses an open or short to ground on the accessory delay relay control circuit.

This pinpoint test is intended to diagnose the following:

- Wiring, terminals or connectors

- Accessory delay relay

- BCM (Body Control Module)

PINPOINT TEST G : THE DELAYED ACCESSORY RELAY DOES NOT TURN OFF

NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.

G1 CHECK FOR CORRECT OPERATION OF THE DOOR AJAR SWITCHES

- Open and close the LH and RH doors and verify the interior lights turn on when the doors are open, and off when the doors are closed.

Do the interior lights operate correctly?

Yes
GO to G2.

No
REFER to Lighting and Horns to diagnose the interior light concern.

G2 CHECK THE ACCESSORY DELAY RELAY

- Ignition OFF.

- Disconnect: Accessory Delay Relay.

- Carry out the accessory delay relay component test.

Did the relay pass the component test?

Yes
GO to G3.

No
INSTALL a new accessory delay relay. TEST the system for normal operation.

G3 CHECK THE LH FRONT WINDOW CONTROL SWITCH POWER CIRCUIT FOR A SHORT TO VOLTAGE

- Ignition OFF.

- Disconnect: BCM (Body Control Module) C2280D.

- Ignition ON.

- For regular or SuperCab, measure the voltage between BCM (Body Control Module) C2280D-17, circuit CBP32 (GN/VT), harness side and ground.





- For Crew Cab, measure the voltage between BCM (Body Control Module) C2280D-27, circuit CBP01 (BU), harness side and ground; and between BCM (Body Control Module) C2280D-17, circuit CBP32 (GN/VT), harness side and ground.





Is any voltage present?

Yes
REPAIR the circuit(s). TEST the system for normal operation.

No
GO to G4.

G4 CHECK FOR CORRECT BCM (Body Control Module) OPERATION

- Disconnect all BCM (Body Control Module) connectors.

- Check for:
- corrosion.
- pushed-out pins.

- Connect all BCM (Body Control Module) connectors and verify the concern is still present.

Is the concern still present?

Yes
INSTALL a new BCM (Body Control Module). TEST the system for normal operation.

No
The system is operating correctly at this time. Concern may have been caused by a loose or corroded connector.