Chrysler Pacifica. Manual — part 182
Symptom:
NAV SWITCH INPUT STUCK
When Monitored and Set Condition:
NAV SWITCH INPUT STUCK
When Monitored:
The MIC power-up diagnostics will test the NAV Button A/D port for
either an open circuit, short to power or ground, or a stuck button exists.
Set Condition:
This DTC will set when the Instrument Cluster detects the NAV Mux
Signal circuit active for 30 seconds. The MIC will suspend operation of the NAV System
until the fault is cleared.
POSSIBLE CAUSES
DTC PRESENT
INSTRUMENT CLUSTER SWITCH POD
TEST
ACTION
APPLICABILITY
1
NOTE: Diagnose and repair any NAV Switch Input Short or Open DTC’s
before proceeding with this test.
With the DRBIII
t, record and erase DTC’s.
Cycle the ignition switch from ON to OFF to ON.
With the DRBIII
t, read DTC’s.
Wait 30 seconds.
Does the DRBIII
t display NAV SWITCH INPUT STUCK?
All
Yes
→ Replace the Instrument Cluster Switch Pod in accordance with
the Service Information.
Perform BODY VERIFICATION TEST - VER 1.
No
→ The conditions that caused this code to set are not present at this
time. Using the wiring diagram/schematic as a guide, inspect the
wiring and connectors for an intermittent condition.
Perform BODY VERIFICATION TEST - VER 1.
725
INSTRUMENT CLUSTER
Symptom:
PWM DIMMING OUTPUT FAILURE
When Monitored and Set Condition:
PWM DIMMING OUTPUT FAILURE
When Monitored:
When the Instrument Cluster is powered up.
Set Condition:
This DTC will set when the Instrument Cluster detects the Panel Lamps
Dimming output is On and an open circuit, short to power or ground condition exists on the
Panel Lamps Driver circuit for 2 seconds.
POSSIBLE CAUSES
PANEL LAMPS DRIVER CIRCUIT OPEN
PANEL LAMPS DRIVER CIRCUIT SHORT TO VOLTAGE
PANEL LAMPS DRIVER CIRCUIT SHORT TO GROUND
DIMMED COMPONENT SHORTED
INSTRUMENT CLUSTER
TEST
ACTION
APPLICABILITY
1
NOTE: This DTC will set if the Panel Lamps Driver circuit is open to all
dimmed components.
Turn the ignition off.
Disconnect the Instrument Cluster C1 harness connector.
Using the wiring diagram/schematic as a guide, inspect the wiring and connectors
related to the Panel Lamps Driver circuit for an open circuit condition.
Was a Panel Lamps Driver circuit open condition found?
All
Yes
→ Repair the Panel Lamps Driver circuit for an open.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Go To 2
2
Turn the ignition off.
Disconnect the Instrument Cluster C1 harness connector.
Measure the voltage between the Panel Lamps Driver circuit and ground.
Is there any voltage present?
All
Yes
→ Repair the Panel Lamps Driver circuit for a short to voltage.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Go To 3
726
INSTRUMENT CLUSTER
TEST
ACTION
APPLICABILITY
3
Turn the ignition on, with the DRBIII
t, erase DTCs.
Turn the ignition off.
Using the wiring diagram/schematic as a guide, disconnect one of the dimmed
components.
Turn the ignition on, with the DRBIII
t, read DTCs.
If this DTC resets, repeat the above procedure with each dimmed component on the
Panel Lamps Driver circuit.
Was a dimmed component found to be shorted, allowing the DTC to be cleared?
All
Yes
→ Replace the appropriate dimmed component in accordance with
the Service Information.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Go To 4
4
Turn the ignition off.
Disconnect the Instrument Cluster C1 harness connector.
Using the wiring diagram/schematic as a guide, inspect the wiring and connectors
related to the Panel Lamps Driver circuit for a short to ground condition.
Was a Panel Lamps Driver circuit short to ground condition found?
All
Yes
→ Repair the Panel Lamps Driver circuit for a short to ground.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Replace the Instrument Cluster in accordance with the Service
Information.
Perform BODY VERIFICATION TEST - VER 1.
727
INSTRUMENT CLUSTER
PWM DIMMING OUTPUT FAILURE —
Continued
Symptom:
RIGHT TURN SIGNAL INDICATOR OPEN - BCM
When Monitored and Set Condition:
RIGHT TURN SIGNAL INDICATOR OPEN - BCM
When Monitored:
Output is Off.
Set Condition:
Feedback Sense is Low for 125 msec. (No circuit load.)
POSSIBLE CAUSES
INSTRUMENT CLUSTER
RIGHT TURN SIGNAL CIRCUIT OPEN
BCM
TEST
ACTION
APPLICABILITY
1
Turn the ignition off.
Disconnect the BCM C4 harness connector.
Turn the ignition on.
Measure the voltage between the Right Turn Signal circuit and ground.
Is the voltage below 5.0 volts?
All
Yes
→ Replace the Instrument Cluster in accordance with the Service
Information.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Go To 2
2
Turn the ignition off.
Disconnect the BCM C4 harness connector.
Disconnect the Instrument Cluster harness connector.
Measure the resistance of the Right Turn Signal circuit.
Is the resistance above 5.0 ohms?
All
Yes
→ Repair the Right Turn Signal circuit for an open.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Replace the BCM in accordance with the Service Information.
Perform BODY VERIFICATION TEST - VER 1.
728
INSTRUMENT CLUSTER
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