Chrysler RG Voyager. Manual — part 194
TEST
ACTION
APPLICABILITY
4
Turn the ignition off.
Reconnect the Ignition Switch 5-way connector.
Gain access to the Body Control Module C4 connector.
Backprobe a jumper wire between the Ignition Switch Sense Return circuit and
ground.
With the DRBIII
t in Sensors, read the IGNITION SW voltage.
Does the DRBIII
t display IGNITION SW 0.0 volts?
All
Yes
→ Repair the Ignition Switch Sense Return circuit for an open.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Replace the Body Control Module in accordance with the service
information.
Perform BODY VERIFICATION TEST - VER 1.
5
Turn the ignition off.
Gain access to the Body Control Module C5 (early) C4 (late) connector.
Backprobe a jumper wire between the Ignition Switch Sense circuit and ground.
With the DRBIII
t in Sensors, read the IGNITION SW voltage.
Does the DRBIII
t display IGNITION SW 0.0 volts?
All
Yes
→ Repair the Ignition Switch Sense circuit for an open.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Replace the Body Control Module in accordance with the service
information.
Perform BODY VERIFICATION TEST - VER 1.
745
IGNITION, POWER, ACCESSORY
IGNITION MUX SWITCH INPUT OPEN —
Continued
Symptom:
IGNITION MUX SWITCH INPUT SHORT
When Monitored and Set Condition:
IGNITION MUX SWITCH INPUT SHORT
When Monitored:
With the ignition on and battery voltage greater than 10.4 volts.
Set Condition:
The ignition MUX sense circuit voltage at the BCM goes below 0.5 volts for
more than 2 seconds.
POSSIBLE CAUSES
IGNITION SWITCH SHORTED
IGNITION SWITCH SENSE CIRCUIT SHORTED TO GROUND
IGNITION SWITCH SENSE CIRCUIT SHORTED TO IGNITION SWITCH SENSE RETURN CIR-
CUIT
IGNITION SWITCH SENSE RETURN CIRCUIT SHORTED TO GROUND
BODY CONTROL MODULE
TEST
ACTION
APPLICABILITY
1
Turn the ignition off.
Disconnect the Ignition Switch 5-way connector.
With the DRBIII
t in Sensors, read the IGNITION SW voltage.
Does the DRBIII
t display IGNITION SW 0.0 volts?
All
Yes
→ Go To 2
No
→ Replace the Ignition Switch in accordance with the service infor-
mation.
Perform BODY VERIFICATION TEST - VER 1.
2
Turn the ignition off.
Disconnect the Ignition Switch 5-way connector.
Disconnect the Body Control Module C5 (early) C4 (late) connector.
Measure the resistance between ground and the Ignition Switch Sense circuit.
Is the resistance below 10K ohms?
All
Yes
→ Repair the Ignition Switch Sense circuit for a short to ground.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Go To 3
746
IGNITION, POWER, ACCESSORY
TEST
ACTION
APPLICABILITY
3
Turn the ignition off.
Gain access to the Body Control Module.
Disconnect the Body Control Module C4 and C5 (early only) harness connectors.
Disconnect the Ignition Switch 5-way harness connector.
Measure the resistance between the Ignition Switch Sense circuit and the Ignition
Switch Sense Return circuit.
Is the resistance below 10K ohms?
All
Yes
→ Repair the Ignition Switch Sense circuit for a short to the Ignition
Switch Sense Return circuit.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Go To 4
4
Turn the ignition off.
Disconnect the Ignition Switch 5-way connector.
Disconnect the Body Control Module C4 connector.
Measure the resistance between ground and the Ignition Switch Sense Return circuit
in the BCM C4 connector.
Is the resistance below 10K ohms?
All
Yes
→ Repair the Ignition Switch Sense Return circuit for a short to
ground.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Replace the Body Control Module in accordance with the service
information.
Perform BODY VERIFICATION TEST - VER 1.
747
IGNITION, POWER, ACCESSORY
IGNITION MUX SWITCH INPUT SHORT —
Continued
Symptom:
IGNITION RUN OUTPUT SHORT
When Monitored and Set Condition:
IGNITION RUN OUTPUT SHORT
When Monitored:
With the ignition on and battery voltage greater than 10.4 volts.
Set Condition:
This DTC will set if the BCM detects voltage below 0.5 volts for more than
2 seconds on the Ignition Switch Output (Run) circuits.
POSSIBLE CAUSES
TEST FOR CURRENT DTCS
MODULE OR COMPONENT FAULT
FUSED IGNITION SWITCH OUTPUT (RUN) CIRCUIT SHORTED TO GROUND
BODY CONTROL MODULE
TEST
ACTION
APPLICABILITY
1
Turn the ignition on.
With the DRBIII
t in Body Computer, record and erase BCM DTCs.
Cycle the ignition from ON to OFF.
Start the engine.
With the DRBIII
t in Body Computer, read BCM DTCs.
Does the DRBIII
t display IGNITION RUN OUTPUT SHORT?
All
Yes
→ Go To 2
No
→ The condition that caused this DTC is currently not present. Use
the wiring diagram/schematic as a guide, and inspect the related
wiring harness for a possible intermittent condition.
Perform BODY VERIFICATION TEST - VER 1.
748
IGNITION, POWER, ACCESSORY
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