Chrysler Town, Dodge Caravan. Manual — part 886

TEST

ACTION

APPLICABILITY

3

Disconnect the Passenger Door Lock Switch connector.
Using a 12-volt test light connected to 12-volts, check the Ground circuit.
Does the test light illuminate brightly?

All

Yes

→ Go To 4

No

→ Repair the Ground circuit for an open.

Perform BODY VERIFICATION TEST - VER 1.

4

Disconnect the Passenger Door Lock Switch connector.
Measure the voltage between Door Lock Switch Mux circuit and ground.
Select the voltage present.

All

Below 4.0 volts.

Repair the Door Lock Switch Mux circuit for an open.
Perform BODY VERIFICATION TEST - VER 1.

Between 4.1 volts and 5.2 volts.

Replace the Door Lock Switch.
Perform BODY VERIFICATION TEST - VER 1.

Above 5.3 volts

Go To

5

5

Disconnect the Passenger Door Lock Switch connector.
Disconnect the Body Control Module C3 connector.
NOTE: Check connectors - Clean/repair as necessary.
Turn the ignition on.
Measure the voltage between Door Lock Switch Mux circuit and ground.
Is there any voltage present?

All

Yes

→ Repair the Door Lock Switch Mux circuit for a short to voltage.

Perform BODY VERIFICATION TEST - VER 1.

No

→ Replace the Body Control Module.

Perform BODY VERIFICATION TEST - VER 1.

780

POWER DOOR LOCKS/RKE

PASSENGER DOOR LOCK SWITCH INPUT OPEN OR SHORT TO VOLT-
AGE —

Continued

Symptom:

PASSENGER DOOR LOCK SWITCH INPUT SHORT

When Monitored and Set Condition:

PASSENGER DOOR LOCK SWITCH INPUT SHORT

When Monitored:

At all times when battery power is supplied to the Body Control

Module.

Set Condition:

When the BCM senses voltage to the door lock switch below .5 volts for

over 10 seconds.

POSSIBLE CAUSES

DTC PRESENT

PASSENGER DOOR LOCK SWITCH SHORTED

DOOR LOCK SWITCH MUX SHORTED

BODY CONTROL MODULE - PASSENGER DOOR LOCK SWITCH VOLTAGE SHORTED

TEST

ACTION

APPLICABILITY

1

With the DRBIII

t, record and erase DTC’s.

Cycle ignition ON to OFF to ON.
With the DRBIII

t, read DTCs.

Remove the key and operate the door locks several times from the Driver Door Lock
Switch while monitoring the DRBIII.
Does the DRBIII

t display DR DOOR LOCK SW INPUT SHORT?

All

Yes

→ Go To 2

No

→ Using the wiring diagram/schematic as a guide, inspect the

wiring and connectors.
Perform BODY VERIFICATION TEST - VER 1.

2

Disconnect the Passenger Door Lock Switch connector.
With the DRBIII

t in Sensors, read the PASS DOOR SW MUX circuit

Is the voltage above 4.6 volts?

All

Yes

→ Replace the Door Lock Switch.

Perform BODY VERIFICATION TEST - VER 1.

No

→ Go To 3

3

Disconnect the Passenger Door Lock Switch connector.
Disconnect the Body Control Module C3 connector.
Measure the resistance between Door Lock Switch Mux circuit and ground.
Is the resistance below 1000.0 ohms?

All

Yes

→ Repair the Door Lock Switch Mux circuit for a short to ground.

Perform BODY VERIFICATION TEST - VER 1.

No

→ Go To 4

781

POWER DOOR LOCKS/RKE

TEST

ACTION

APPLICABILITY

4

If there are no possible causes remaining, view repair.

All

Repair

Disconnect the BCM harness connector(s). Check connectors -
Clean/repair as necessary. If okay, replace the Body Control
Module.
Perform BODY VERIFICATION TEST - VER 1.

782

POWER DOOR LOCKS/RKE

PASSENGER DOOR LOCK SWITCH INPUT SHORT —

Continued

Symptom:

PASSENGER DOOR LOCK SWITCH INPUT STUCK

When Monitored and Set Condition:

PASSENGER DOOR LOCK SWITCH INPUT STUCK

When Monitored:

At all times when battery power is supplied to the Body Control

Module.

Set Condition:

When the BCM senses voltage to the door lock switch between 1.3 and

3.25 for over 10 seconds.

POSSIBLE CAUSES

DTC PRESENT

BODY CONTROL MODULE - PASSENGER DOOR LOCK SWITCH VOLTAGE INCORRECT

DOOR LOCK SWITCH GROUND OPEN

DOOR LOCK SWITCH MUX OPEN

DOOR LOCK SWITCH STUCK

TEST

ACTION

APPLICABILITY

1

With the DRBIII

t, record and erase DTC’s.

Cycle the ignition ON to OFF to ON.
With the DRBIII

t, read DTCs.

Remove the key and operate the door lock several times from the Passenger Door
Lock Switch while monitoring the DRBIII.
Does the DRBIII

t display PASS DOOR LOCK SW INPUT STUCK?

All

Yes

→ Go To 2

No

→ Using the wiring diagram/schematic as a guide, inspect the

wiring and connectors.
Perform BODY VERIFICATION TEST - VER 1.

2

With the DRBIII

t in Sensors, read the PASS DOOR LOCK SW voltage.

Does the DRBIII

t display voltage between 1.3 and 3.25 volts?

All

Yes

→ Go To 3

No

→ Disconnect the BCM harness connector(s). Check connectors -

Clean/repair as necessary. If okay, replace the Body Control
Module.
Perform BODY VERIFICATION TEST - VER 1.

3

Disconnect the Passenger Door Lock Switch connector.
Using a 12-volt test light connected to 12-volts, check the Ground circuit.
Does the test light illuminate brightly?

All

Yes

→ Go To 4

No

→ Repair the Ground circuit for an open.

Perform BODY VERIFICATION TEST - VER 1.

783

POWER DOOR LOCKS/RKE