Run/Start Hardware Input Failure - Chrysler Town and Country 2003 Owner's Manual

Symptom:

RUN/START HARDWARE INPUT FAILURE

When Monitored and Set Condition:
RUN/START HARDWARE INPUT FAILURE
When Monitored: With the ignition on and battery voltage greater than 10.4 volts.
Set Condition: The Fused Ignition Switch Output circuit voltage at the BCM goes below
0.5 volts and the BCM detects a voltage mismatch between the two ignition switch inputs.
TEST FOR CURRENT DTC'S
FUSED IGNITION SWITCH OUTPUT CIRCUIT OPEN
IGNITION SWITCH
BODY CONTROL MODULE
TEST
1 With the DRBIII , record and erase DTC's.
Cycle the ignition from ON to OFF.
Start the vehicle and observe the DRBIII .
With the DRBIII , read DTC's.
Does the DRBIII display RUN/START HARDWIRE INPUT FAILURE?
Yes → Go To 2
→ The condition that caused this DTC is currently not present. Use
No
2 Turn the ignition off.
Gain access to the Ignition Switch connector.
Turn the ignition on.
While back probing, measure the voltage of the Fused Ignition Switch Output
(Run/Start) circuit.
Is the voltage above 10.0 volts?
Yes → Go To 3
→ Replace the Ignition Switch in accordance with the service infor-
No
POSSIBLE CAUSES
ACTION
the wiring diagram/schematic as a guide, and inspect the related
wiring harness for a possible intermittent condition.
Perform BODY VERIFICATION TEST - VER 1.
mation.
Perform BODY VERIFICATION TEST - VER 1.
IGNITION, POWER, ACCESSORY
617
APPLICABILITY
All
All