Bcm - Ignition Run 1 Short - Dodge ZB 2005 Service Manual

Symptom:

BCM - IGNITION RUN 1 SHORT

When Monitored and Set Condition:
BCM - IGNITION RUN 1 SHORT
When Monitored: With the ignition on.
Set Condition: When the output is active and the BCM detects the Ignition 1 circuit is low
for at least 10 seconds.
MODULE OR COMPONENT SHORT TO GROUND
ANY RUN 1 CIRCUIT SHORT TO GROUND
BODY CONTROL MODULE
TEST
1 NOTE: Repeat this test until either the DTC is no longer present or all of the
modules and components are disconnected from the Fused Ignition Switch
Output (Run) circuit and the DTC is still present.
Turn the ignition off.
This DTC may set with the component or module, or the Fused Ignition Switch
Output (Run) or Ignition Feed circuit to any of the following:
HVAC Control (BCM C4 harness connector, pin 18, Fused Ignition Switch Output
(Run) circuit)
ABS Module (CAB) (BCM C3 harness connector, pin 31, Fused Ignition Switch
Output (Run) circuit)
Airbag Control Module (ACM) NOTE: ACM fuse does not protect circuit. (BCM C3
harness connector, pin 33, Fused Ignition Switch Output (Run) circuit)
Multi- Function Switch (BCM C3 harness connector, pin 25, Ignition Feed circuit)
LED's in the following switches:
Power Mirror Switch
Right and Left Power Window Switches
Right and Left Power Lock Switches
NOTE: For the result of this test to be valid, disconnect only one component
or module at time and then verify if the DTC is still present.
Using the wiring diagram/schematic as a guide, disconnect the harness connector
with the Fused Ignition Switch Output (Run) circuit from one module or component
identified above.
Turn the ignition on.
With the DRBIII in Body Computer, erase BCM DTCs.
Cycle the ignition from On to Off.
Turn the ignition on.
With the DRBIII , read DTCs.
Does the DRBIII display IGNITION RUN 1 OUTPUT SHORT?
Yes → Go To 2
No
POSSIBLE CAUSES
ACTION
→ Replace the module or the component that when disconnected,
allowed this DTC to clear.
Perform BODY VERIFICATION TEST - VER 1.
IGNITION, POWER, ACCESSORY
247
APPLICABILITY
All