B2120–IGNITION RUN/ACC/PAD CONTROL CIRCUIT OPEN

For a complete wiring diagram Refer to Section 8W.

When Monitored:
With the ignition on.
Set Condition:
The Front Control Module will set this DTC within 500ms if the (P305) Accessory Delay Relay Control circuit is open.

Possible Causes

(P305) ACCESSORY DELAY RELAY CONTROL CIRCUIT OPEN

RUN/ACCESSORY DELAY RELAY

FRONT CONTROL MODULE

1.CHECK FOR ACTIVE DTC

Does the scan tool display this DTC as active?

Yes

If the DTC is stored, check for an intermittent condition. Visually inspect the related wiring harness connectors. Look for broken, bent, pushed out, or corroded terminals.

2.RUN/ACCESSORY DELAY RELAY

Does the scan tool display this DTC as active?

Yes

Replace the original Run/Accessory Delay Relay.
Perform BODY VERIFICATION TEST – VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE).

3.(P305) ACCESSORY DELAY RELAY CONTROL CIRCUIT OPEN

Is the resistance below 10.0 ohms?

No

Repair the (P305) Accessory Delay Relay Control circuit for an open.
Perform BODY VERIFICATION TEST – VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE).

Yes

Inspect the wiring and connectors for damage or shorted circuits. If OK, replace and program the Front Control Module in accordance with the service information.
Perform BODY VERIFICATION TEST – VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE).