Pinpoint Test H: The Delayed Accessory Is Inoperative

Glass, Frames and Mechanisms

Pinpoint Tests

Pinpoint Test H: The Delayed Accessory is Inoperative

Normal Operation

The accessory delay relay is located in the Smart Junction Box (SJB), and the relay coil receives battery voltage through circuit 294 (WH/LB) at all times. When the key is turned ON, the SJB activates the accessory delay relay by grounding the relay coil, and power is sent to all window control switches. When the key is turned OFF, the SJB continues to ground the accessory delay relay coil for approximately 10 minutes, or until a door is opened.

- DTC B2052 Accessory Delay Relay Output Failure - Output circuit shorted to ground or open.

This pinpoint test is intended to diagnose the following:
- Fuse(s)
- Accessory delay relay
- Wiring, terminals or connectors
- Bussed Electrical Center (BEC)
- SJB



PINPOINT TEST H: THE DELAYED ACCESSORY IS INOPERATIVE

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H1 CHECK THE 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. Carry out the Accessory Delay Relay Component Test.

- Do the interior lights operate correctly?

Yes
GO to H2.

No
REFER to Courtesy Lamp to diagnose the interior light concern. Testing and Inspection

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H2 CHECK THE ACCESSORY DELAY RELAY


- Disconnect: Accessory Delay Relay.
- Carry out the Accessory Delay Relay Component Test.

- Is the accessory delay relay OK?

Yes
VERIFY the SJB fuse 6 (5A) is OK. If OK, GO to H3.

If not OK, REFER to the Wiring Diagrams to identify the possible causes of the circuit short. REPAIR the circuit. TEST the system for normal operation.

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

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H3 CHECK CIRCUIT 294 (WH/LB) FOR VOLTAGE


- Disconnect: SJB C2280H.
- Measure the voltage between SJB C2280H-1, circuit 294 (WH/LB) harness side and ground.




- Is the voltage greater than 10 volts?

Yes
GO to H4.

No
VERIFY the BEC fuse 44 (10A) is OK, If OK, REPAIR the circuit. TEST the system for normal operation.

If not OK, REFER to the Wiring Diagrams to identify the possible causes of the circuit short. REPAIR the circuit. TEST the system for normal operation.

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H4 CHECK FOR CORRECT SJB OPERATION


- Disconnect all SJB connectors.
- Check for:
- corrosion.
- pushed-out pins.
- Connect all SJB connectors and verify the concern is still present.
- Is the concern still present?

Yes
INSTALL a new SJB. 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. CLEAR the DTCs. REPEAT the self-test. TEST the system for normal operation.

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