Chrysler Town, Dodge Caravan. Manual — part 933

TEST

ACTION

APPLICABILITY

4

With the VTSS Siren connector disconnected.
Turn the ignition on.
Measure the voltage of the Siren Signal Control circuit (cavity 2) in the VTSS Siren
connector.
Is the voltage approximately 5.0 volts +/- 1.0 volt?

All

Yes

→ Replace the VTSS Siren.

Perform VTSS VERIFICATION TEST - 1A.

No

→ Go To 5

5

Gain access to the Thatcham Alarm Module 16-way harness connector.
While back probing, measure the voltage of the Siren Signal Control circuit.
Turn the ignition on.
Is the voltage approximately 5.0 volts?

All

Yes

→ Go To 6

No

→ Replace the RKE/Thatcham Alarm Module.

Perform VTSS VERIFICATION TEST - 1A.

6

Disconnect the Thatcham Alarm Module 16-way harness connector.
Measure the resistance of the Siren Signal Control circuit between the Thatcham
Alarm Module and the VTSS Siren connectors.
Is the resistance below 5.0 ohms?

All

Yes

→ Replace the VTSS Siren.

Perform VTSS VERIFICATION TEST - 1A.

No

→ Repair the Siren Signal Control circuit for an open.

Perform VTSS VERIFICATION TEST - 1A.

7

Gain access to the RKE/Thatcham Alarm Module.
While back probing, measure the resistance of the Siren Signal Return circuit in the
Thatcham Alarm Module 16-way connector.
Is the resistance below 5.0 ohms?

All

Yes

→ Go To 8

No

→ Replace the RKE/Thatcham Alarm Module.

Perform VTSS VERIFICATION TEST - 1A.

8

Disconnect the Thatcham Alarm Module 16-way harness connector.
Measure the resistance of the Siren Signal Return circuit between the Thatcham
Alarm Module and the VTSS Siren connector.
Is the resistance below 5.0 ohms?

All

Yes

→ Replace the VTSS Siren.

Perform VTSS VERIFICATION TEST - 1A.

No

→ Repair the Siren Signal Return circuit for an open.

Perform VTSS VERIFICATION TEST - 1A.

9

Gain access to the RKE/Thatcham Alarm Module.
While back probing, measure the voltage of the Siren Supply circuit in the Thatcham
Alarm Module 16-way connector.
Turn the ignition on.
Is the voltage above 10.0 volts?

All

Yes

→ Go To 10

No

→ Replace the RKE/Thatcham Alarm Module.

Perform VTSS VERIFICATION TEST - 1A.

968

VEHICLE THEFT/SECURITY

*VTSS SIREN INOP (EXPORT ONLY) —

Continued

TEST

ACTION

APPLICABILITY

10

Disconnect the Thatcham Alarm Module 16-way harness connector.
Measure the resistance of the Siren Supply circuit between the Thatcham Alarm
Module and the VTSS Siren connector.
Is the resistance below 5.0 ohms?

All

Yes

→ Replace the VTSS Siren.

Perform VTSS VERIFICATION TEST - 1A.

No

→ Repair the Siren Supply circuit for an open.

Perform VTSS VERIFICATION TEST - 1A.

969

VEHICLE THEFT/SECURITY

*VTSS SIREN INOP (EXPORT ONLY) —

Continued

Symptom:

*VTSS WILL NOT ARM

POSSIBLE CAUSES

CHECK THE VTSS STATUS

CHECK FOR BCM DTCS AND VTSS ARMING INHIBITORS

CHECK FOR PCI BUS COMMUNICATION OF INSTRUMENT CLUSTER AND SKIM

BODY CONTROL MODULE

TEST

ACTION

APPLICABILITY

1

With the DRBIII

t in BCM, select Miscellaneous Function and check that the Theft

Alarm is enabled.
Was the Theft Alarm enabled?

All

Yes

→ Go To 2

No

→ With the DRBIIIt, enable the Vehicle Theft Security System

(VTSS).
Perform VTSS VERIFICATION TEST - 1A.

2

With the DRBIII

t, attempt to read the Module Display of the Instrument Cluster and

also the Sentry Key Immobilizer Module.
Was the DRBIII

t able to display the module information of the MIC and SKIM?

All

Yes

→ Go To 3

No

→ Refer to the Symptom List and diagnose the appropriate symptom

in the Communication category.
Perform VTSS VERIFICATION TEST - 1A.

3

Ensure all doors and hood (export only) are closed.
With the DRBIII

t, read the active DTC’s and the ajar switch states.

Does the DRBIII

t display any closed switches or VTSS related DTC’s?

All

Yes

→ Refer to the Symptom List and diagnose the appropriate symptom

in the DOOR AJAR or VTSS category.
Perform VTSS VERIFICATION TEST - 1A.

No

→ Replace the Body Control Module.

Perform BODY VERIFICATION TEST - VER 1.

970

VEHICLE THEFT/SECURITY

Symptom:

FR WIPER HI-LO RELAY OPEN

POSSIBLE CAUSES

FUSED B(+) CIRCUIT

COMMON CIRCUIT OPEN

WIPER HI/LOW RELAY

WIPER ON/OFF RELAY

WIPER HI/LOW RELAY CONTROL CIRCUIT OPEN

FCM-ON/OFF RELAY DRIVER OPEN

TEST

ACTION

APPLICABILITY

1

Turn the ignition off.
Remove the Wiper On/Off Relay from the PDC.
Using a 12-volt test light connected to ground, probe both Fused B(+) circuits in the
PDC.
NOTE: The test light must illuminate brightly. Compare the brightness to
that of a direct connection to the battery.
Does the test light illuminate brightly at each terminal?

All

Yes

→ Go To 2

No

→ Repair the Fused B(+) circuit(s) for an open.

Perform BODY VERIFICATION TEST - VER 1.

2

Install a substitute relay in place of the Wiper On/Off Relay.
Turn the ignition on.
Turn the wipers on.
Does the system operate correctly?

All

Yes

→ Replace the Wiper On/Off Relay.

Perform BODY VERIFICATION TEST - VER 1.

No

→ Go To 3

3

Turn the ignition off.
Remove the wiper High/Low Relay from the PDC.
Remove the wiper On/Off Relay from the PDC.
Measure the resistance of the Common circuit between the High/Low Relay and the
On/Off relay in the PDC.
Is the resistance below 10.0 ohms?

All

Yes

→ Go To 4

No

→ Repair the Common circuit for an open.

Perform BODY VERIFICATION TEST - VER 1.

4

Install a substitute relay in place of the Wiper Hi/Low Relay.
Turn the ignition on.
Turn the wipers on.
Does the system operate correctly?

All

Yes

→ Replace the Wiper Hi/Low Relay.

Perform BODY VERIFICATION TEST - VER 1.

No

→ Go To 5

971

WINDSHIELD WIPER & WASHER