Chrysler Pacifica. Manual — part 108

Symptom:

DRIVER HEATED SEAT SWITCH SHORT - DDM

When Monitored and Set Condition:

DRIVER HEATED SEAT SWITCH SHORT - DDM

When Monitored:

Continuously.

Set Condition:

If the MUX circuit is under 0.10 volt for over 10 seconds, this code will set.

POSSIBLE CAUSES

DTC PRESENT

POWER SEAT SWITCH

DRIVER HEATED SEAT SWITCH MUX SHORT TO GROUND

DRIVER DOOR MODULE

TEST

ACTION

APPLICABILITY

1

Turn the ignition on.
With the DRBIII

t, erase DTCs.

Cycle the ignition switch from Off to Run.
Operate the suspect switch in both positions several times.
With the DRBIII

t, read DTCs.

Does the DRBIII

t display DRIVER HEATED SEAT SWITCH SHORT?

All

Yes

→ Go To 2

No

→ The condition that caused this code to set is not present at this

time.
Perform BODY VERIFICATION TEST - VER 1.

2

Disconnect the Driver Power Seat Switch connector.
Turn the ignition on.
With the DRBIII

t, erase DTCs.

Cycle the ignition switch from Off to Run and wait 10 seconds.
With the DRBIII

t, read DTCs.

Does the DRBIII

t display DRIVER HEATED SEAT SWITCH SHORT?

All

Yes

→ Go To 3

No

→ Replace the Power Seat Switch.

Perform BODY VERIFICATION TEST - VER 1.

429

ELECTRICALLY HEATED SYSTEMS

TEST

ACTION

APPLICABILITY

3

Turn the ignition off.
Disconnect the Driver Power Seat Switch connector.
Disconnect the Driver Door Module C2 connector.
Inspect the Driver Heated Seat Switch MUX circuit for a short to ground or to
another circuit in the seat switch harness.
Were there any problems found?

All

Yes

→ Repair the Driver Heated Seat Switch MUX circuit for a short to

ground.
Perform BODY VERIFICATION TEST - VER 1.

No

→ Replace the Driver Door Module.

Perform BODY VERIFICATION TEST - VER 1.

430

ELECTRICALLY HEATED SYSTEMS

DRIVER HEATED SEAT SWITCH SHORT - DDM —

Continued

Symptom:

DRIVER HEATED SEAT SWITCH STUCK - DDM

When Monitored and Set Condition:

DRIVER HEATED SEAT SWITCH STUCK - DDM

When Monitored:

Continuously.

Set Condition:

If the switch is held in the on position for over 10 seconds, this code will

set.

POSSIBLE CAUSES

DTC PRESENT

DRIVER POWER SEAT SWITCH

DRIVER HEATED SEAT SW MUX

DRIVER DOOR MODULE

TEST

ACTION

APPLICABILITY

1

Check the heated seat switch mechanical operation for a sticking condition. Correct
as necessary.
Turn the ignition on.
With the DRBIII

t, erase DTCs.

Cycle the ignition switch from Off to Run.
Operate the Heated Seat Switch several times.
With the DRBIII

t, read DTCs.

Does the DRBIII

t display DRIVER HEATED SEAT SWITCH STUCK?

All

Yes

→ Go To 2

No

→ The condition that caused this code to set is not present at this

time. Operate the switch several times to ensure it does not stick.
If the switch ever sticks, replace it.
Perform BODY VERIFICATION TEST - VER 1.

2

Disconnect the Driver Power Seat Switch connector.
Turn the ignition on.
With the DRBIII

t, erase DTCs.

Cycle the ignition switch from Off to Run and wait 30 seconds.
With the DRBIII

t, read DTCs.

Does the DRBIII

t display DRIVER HEATED SEAT SWITCH STUCK?

All

Yes

→ Go To 3

No

→ Replace the Driver Power Seat Switch.

Perform BODY VERIFICATION TEST - VER 1.

431

ELECTRICALLY HEATED SYSTEMS

TEST

ACTION

APPLICABILITY

3

Turn the ignition off.
Disconnect the Driver Power Seat Switch connector.
Disconnect the Driver Door Module C2 connector.
Inspect the Driver Heated Seat Switch MUX circuit for a partial short to ground or
to another circuit in the seat switch harness.
Were there any problems found?

All

Yes

→ Repair the Driver Heated Seat Switch MUX circuit as necessary.

Perform BODY VERIFICATION TEST - VER 1.

No

→ Replace the Driver Door Module.

Perform BODY VERIFICATION TEST - VER 1.

432

ELECTRICALLY HEATED SYSTEMS

DRIVER HEATED SEAT SWITCH STUCK - DDM —

Continued