Chrysler Pacifica. Manual — part 110
Symptom:
EBL RELAY CONTROL CIRCUIT OPEN - IPM
When Monitored and Set Condition:
EBL RELAY CONTROL CIRCUIT OPEN - IPM
When Monitored:
Continuously.
Set Condition:
The output is off and a open condition exists. Time to mature 1 second.
POSSIBLE CAUSES
DTC PRESENT
FUSE #5
REAR WINDOW DEFOGGER RELAY (EBL)
IPM
TEST
ACTION
APPLICABILITY
1
Turn the ignition on.
With the DRBIII
t, erase DTCs.
Turn the ignition off, wait 30 seconds, then turn the ignition on.
With the DRBIII
t, read DTCs.
Does the DRBIII
t display: EBL RELAY CONTROL CIRCUIT OPEN?
All
Yes
→ Go To 2
No
→ The condition that caused the symptom is not currently present.
Refer to any Technical Service Bulletins (TSBs) that may apply.
Using the wiring diagram/schematic as a guide, inspect the
wiring and connectors.
Perform BODY VERIFICATION TEST - VER 1.
2
Turn the ignition off.
Check fuse #5 in the IPM.
Is the fuse open?
All
Yes
→ Replace the fuse. Check for a short to ground in the Rear Window
Defogger Relay Output circuit from the IPM to the defogger grid.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Go To 3
3
Turn the ignition off.
Install a substitute relay in place of the Rear Window Defogger Relay (EBL).
With the DRBIII
t, erase DTCs.
Turn the ignition on.
With the DRBIII
t, read DTCs.
Does the DRBIII
t display: EBL RELAY CONTROL CIRCUIT OPEN?
All
Yes
→ Replace the IPM in accordance with the Service Information.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Replace the Rear Window Defogger Relay (EBL).
Perform BODY VERIFICATION TEST - VER 1.
437
ELECTRICALLY HEATED SYSTEMS
Symptom:
EBL RELAY CONTROL CIRCUIT SHORT TO BATTERY - IPM
When Monitored and Set Condition:
EBL RELAY CONTROL CIRCUIT SHORT TO BATTERY - IPM
When Monitored:
Continuously.
Set Condition:
The output is on and a short to battery condition exists. Time to mature
1 second.
POSSIBLE CAUSES
DTC PRESENT
REAR WINDOW DEFOGGER RELAY (EBL)
IPM
TEST
ACTION
APPLICABILITY
1
Turn the ignition on.
With the DRBIII
t, erase DTCs.
Turn the ignition off, wait 30 seconds, then turn the ignition on.
With the DRBIII
t, read DTCs.
Does the DRBIII
t display: EBL RELAY CONTROL CIRCUIT SHORT TO BAT-
TERY?
All
Yes
→ Go To 2
No
→ The condition that caused the symptom is not currently present.
Refer to any Technical Service Bulletins (TSBs) that may apply.
Using the wiring diagram/schematic as a guide, inspect the
wiring and connectors.
Perform BODY VERIFICATION TEST - VER 1.
2
Turn the ignition off.
Install a substitute relay in place of the Rear Window Defogger Relay (EBL).
With the DRBIII
t, erase DTCs.
Turn the ignition on.
With the DRBIII
t, read DTCs.
Does the DRBIII
t display: EBL RELAY CONTROL CIRCUIT SHORT TO BAT-
TERY?
All
Yes
→ Replace the IPM in accordance with the Service Information.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Replace the Rear Window Defogger Relay (EBL).
Perform BODY VERIFICATION TEST - VER 1.
438
ELECTRICALLY HEATED SYSTEMS
Symptom:
PASSENGER HEATED SEAT SWITCH OPEN - PDM
When Monitored and Set Condition:
PASSENGER HEATED SEAT SWITCH OPEN - PDM
When Monitored:
Continuously.
Set Condition:
If the switch MUX circuit is over 4.9 volts for over 10 second, this code will
set.
POSSIBLE CAUSES
DTC PRESENT
PASSENGER SEAT SWITCH MUX WIRE OPEN
PASSENGER SEAT SWITCH MUX WIRE SHORT TO VOLTAGE
SEAT SWITCH MUX RETURN
PASSENGER DOOR MODULE
PASSENGER SEAT SWITCH
TEST
ACTION
APPLICABILITY
1
Turn the ignition on.
With the DRBIII
t, erase DTCs.
Cycle the ignition switch from Off to Run.
Operate the switch that had the DTC in all positions several times.
With the DRBIII
t, read DTCs.
Does the DRBIII
t display the same DTC?
All
Yes
→ Go To 2
No
→ The condition that caused this code to set is not present at this
time. Review wiring schematics and inspect related wiring for
intermittent open condition.
Perform BODY VERIFICATION TEST - VER 1.
2
Turn the ignition on.
With the DRBIII
t in Sensors, read the Seat Switch voltage of the switch that had the
DTC.
Select the voltage displayed.
All
4.4 to 5.1 volts.
Over 5.2 volts
439
ELECTRICALLY HEATED SYSTEMS
TEST
ACTION
APPLICABILITY
3
Turn the ignition on.
Disconnect the Passenger Seat Switch connector.
Measure the voltage of the Switch MUX circuit indicated by the DRBlll
t and ground.
Is the voltage between 4.4 and 5.1 volts?
All
Yes
→ Go To 4
No
→ Repair the Passenger Seat Switch MUX wire for an open.
Perform BODY VERIFICATION TEST - VER 1.
4
Turn the ignition off.
Disconnect the Passenger Seat Switch connector.
Measure the resistance of the Seat Switch MUX Return circuit in the switch
connector.
Is the resistance below 5.0 ohms?
All
Yes
→ Replace the Passenger Seat Switch.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Repair the Seat Switch MUX Return for an open.
Perform BODY VERIFICATION TEST - VER 1.
5
Turn the ignition off.
Disconnect the Passenger Seat Switch connector.
Disconnect the Passenger Door Module C2 connector.
Inspect the Seat Switch MUX circuit that had the DTC for a possible short to voltage.
Were there any problems found?
All
Yes
→ Repair the Passenger Seat Switch MUX circuit for a short to
voltage.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Replace the Passenger Door Module.
Perform BODY VERIFICATION TEST - VER 1.
440
ELECTRICALLY HEATED SYSTEMS
PASSENGER HEATED SEAT SWITCH OPEN - PDM —
Continued
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