2007 Grand Cherokee WK Factory Service Manual 8 - ELECTRICAL

B211E-IGNITION RUN/ACC/PAD CONTROL CIRCUIT LOW





For a complete wiring diagram Refer to Section 8W.



Possible Causes
 
(P305) ACCESSORY DELAY RELAY CONTROL CIRCUIT OPEN
 
(P305) ACCESSORY DELAY RELAY CONTROL CIRCUIT SHORTED TO GROUND
 
RUN/ACCESSORY DELAY RELAY
 
FRONT CONTROL MODULE
 




Diagnostic Test

1. CHECK FOR ACTIVE DTC

With the scan tool, read the active DTC's.
Cycle the ignition switch from off to on, leaving the ignition on for a minimum of 90 seconds.
With the scan tool, read the active DTC's.

Does the scan tool display this DTC as active?

Yes


No

2. RUN/ACCESSORY DELAY RELAY

Turn the ignition off.
Install a substitute relay in place of the original Run/Accessory Delay Relay.
Cycle the ignition switch from off to on, leaving the ignition on for a minimum of 90 seconds.
With the scan tool, read the active FCM DTC's.

Does the scan tool display this DTC as active?

Yes


No

3. (P305) ACCESSORY DELAY RELAY CONTROL CIRCUIT OPEN



Turn the ignition off.
Remove the FCM from the Integrated Power Module.
Remove the Run/Accessory Delay Relay from the Junction Block.
Measure the resistance of the (P305) Accessory Delay Relay Control circuit from the Front Control Module IPM connector to the Relay connector.

Is the resistance below 10.0 ohms?

Yes


No

4. (P305) ACCESSORY DELAY RELAY CONTROL CIRCUIT SHORTED TO GROUND



Measure the resistance between ground and the (P305) Accessory Delay Relay Control circuit at the relay cavity (85).

Is the resistance below 100.0 ohms?

Yes


No