Chrysler 300/300 Touring/300C, Dodge Magnum. Manual — part 457
B2104-IGNITION UNLOCK RUN/START CONTROL CIRCUIT LOW
For a complete wiring diagram Refer to Section 8W.
8I - 6
IGNITION SYSTEM - ELECTRICAL DIAGNOSTICS
LX
•
When Monitored:
With the ignition on.
•
Set Condition:
The Front Control Module will set this DTC within 500ms if the ignition unlock run/start circuit voltage is less
than the expected value.
Possible Causes
(F902) IGNITION UNLOCK RUN START CIRCUIT SHORTED TO GROUND
SHIFTER LEVER ASSEMBLY
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.
SHIFTER LEVER ASSEMBLY
Turn the ignition off.
Disconnect the Shifter Lever Assembly harness connector.
Cycle the ignition switch from off to on, leaving the ignition on for a min-
imum 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 Shifter Lever Assembly in accordance with the
service information.
Perform BODY VERIFICATION TEST – VER 1. (Refer to
BODY VERIFICATION TEST – VER 1).
LX
IGNITION SYSTEM - ELECTRICAL DIAGNOSTICS
8I - 7
3.
(F902) IGNITION UNLOCK RUN START CIRCUIT SHORTED TO GROUND
Turn the ignition off.
Remove the FCM from the IPM.
Measure the resistance between ground and the (F902) Ignition Unlock
Run Start circuit.
Is the resistance below 100.0 ohms?
Yes
>> Repair the (F902) Ignition Unlock Run Start 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).
8I - 8
IGNITION SYSTEM - ELECTRICAL DIAGNOSTICS
LX
B2105-IGNITION UNLOCK RUN/START CONTROL CIRCUIT HIGH
For a complete wiring diagram Refer to Section 8W.
LX
IGNITION SYSTEM - ELECTRICAL DIAGNOSTICS
8I - 9
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст