Jeep Grand Cherokee WK. Manual — part 396
B211E–IGNITION RUN/ACC/PAD CONTROL CIRCUIT LOW (CONTINUED)
3.
(P305) ACCESSORY DELAY RELAY CONTROL CIRCUIT OPEN
Turn the ignition off.
Remove the FCM from the Integrated Power Module.
Remove the Accessory Delay Relay from the Rear Junction Block.
Measure the resistance of the (P305) Accessory Delay Relay Control
circuit from the Front Control Module IPM connector to the Relay con-
nector.
Is the resistance below 10.0 ohms?
Yes
>> Go To 4
No
>> Repair the (P305) Accessory Delay Relay Control circuit
for an open.
Perform BODY VERIFICATION TEST – VER 1. (Refer to
BODY VERIFICATION TEST – VER 1).
4.
(P307) 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
>> Repair the (P305) Accessory Delay Relay Control circuit
for a short to ground.
Perform BODY VERIFICATION TEST – VER 1. (Refer to
BODY VERIFICATION TEST – VER 1).
No
>> Inspect the wiring and connectors for damage or shorted
circuits. If ok, replace and program the Front Control Mod-
ule in accordance with the service information.
Perform BODY VERIFICATION TEST – VER 1. (Refer to
BODY VERIFICATION TEST – VER 1).
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IGNITION SYSTEMS - ELECTRICAL DIAGNOSTICS
WK
B211F–IGNITION RUN/ACC/PAD CONTROL CIRCUIT HIGH
WK
IGNITION SYSTEMS - ELECTRICAL DIAGNOSTICS
8I - 5
B211F–IGNITION RUN/ACC/PAD CONTROL CIRCUIT HIGH (CONTINUED)
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) Ignition Run/Acc/Pad Relay Control
circuit is shorted to voltage.
Possible Causes
(P305) ACCESSORY DELAY RELAY CONTROL CIRCUIT SHORTED TO VOLTAGE
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
>> Go To 2
No
>> If the DTC is stored, check for an intermittent condition. Visually inspect the related wiring harness con-
nectors. Look for broken, bent, pushed out, or corroded terminals.
2.
ACCESSORY DELAY RELAY
Turn the ignition off.
Install a substitute relay in place of the original 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
>> Go To 3
No
>> Replace the original relay.
Perform BODY VERIFICATION TEST – VER 1. (Refer to BODY VERIFICATION TEST – VER 1).
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IGNITION SYSTEMS - ELECTRICAL DIAGNOSTICS
WK
B211F–IGNITION RUN/ACC/PAD CONTROL CIRCUIT HIGH (CONTINUED)
3.
(P305) ACCESSORY DELAY RELAY CONTROL CIRCUIT SHORTED TO VOLTAGE
Turn the ignition off.
Remove the FCM from the Integrated Power Module.
Remove the Accessory Delay Relay from the Rear Junction Block.
Turn the ignition on.
Measure the voltage of the (P305) Accessory Delay Relay Control cir-
cuit at the relay connector (cavity 85).
Is there any voltage present?
Yes
>> Repair the (P305) Accessory Delay Relay Control circuit
for a short to voltage.
Perform BODY VERIFICATION TEST – VER 1. (Refer to
BODY VERIFICATION TEST – VER 1).
No
>> 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
BODY VERIFICATION TEST – VER 1).
WK
IGNITION SYSTEMS - ELECTRICAL DIAGNOSTICS
8I - 7
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