WipersWashers - ElectricalDiagnostics

DTC Description

B2304 WIPER PARK SWITCH INPUT CIRCUIT LOW

B2305 WIPER PARK SWITCH INPUT CIRCUIT HIGH

B230D REAR WIPER PARK SWITCH INPUT CIRCUIT LOW (STUCK LOW)

B230E REAR WIPER PARK SWITCH INPUT CIRCUIT HIGH (STUCK HIGH)

B2324 HEADLAMP WASHER MOTOR CONTROL CIRCUIT HIGH

WIPERS/WASHERS - ELECTRICAL/DIAGNOSTICS

For complete wiring diagrams, refer to SYSTEM WIRING DIAGRAMS article.

With the ignition on.

 Set Condition:

The Totally Integrated Power Module (TIPM) detects a short to ground on the Wiper Park Switch Sense circuit.

1) INTERMITTENT CONDITION

Turn the ignition on.

With the scan tool, clear all DTC's.

Cycle the Wiper Switch on and off 3 times.

With the scan tool, read DTC's.

Does the scan tool display this DTC as active?

Yes

No

The condition that caused this symptom is currently not present. Check for an intermittent condition by inspecting the related wiring harness for chafed, pierced, pinched, and partially broken wires. Also, inspect the related connectors for broken, bent, pushed out, spread, corroded, or contaminated terminals. Repair as necessary. Perform BODY VERIFICATION TEST - VER 1 . 2) FRONT WIPER MOTOR

Turn the ignition off.

Disconnect the Front Wiper Motor harness connector.

Turn the ignition on.

Wait 30 seconds.

With the scan tool, read the Front Wiper Park Switch Sense.

Does the Front Wiper Park Switch Sense display: False?

Yes

Replace the Front Wiper Motor in accordance with the Service Information. Perform BODY VERIFICATION TEST - VER 1 .

No

Go To 3). 3) CHECK (W7) WIPER PARK SWITCH SENSE CIRCUIT FOR A SHORT TO GROUND

Turn the ignition off.

Disconnect the TIPM C7 harness connector.

Measure the resistance between ground and the (W7) Wiper Park Sense Circuit.

Is the resistance above 10k ohms?

Yes

Replace the Totally Integrated Power Module (TIPM) in accordance with the Service Information. Perform BODY VERIFICATION TEST - VER 1 .

No

Repair the (W7) Wiper Park Switch Sense circuit for a short to ground. Perform BODY VERIFICATION TEST - VER 1 .

For complete wiring diagrams, refer to SYSTEM WIRING DIAGRAMS article.

With the ignition on.

 Set Condition:

The Totally Integrated Power Module (TIPM) does not detect a change from High to Low voltage on the Wiper Park Switch Sense Circuit.

1) INTERMITTENT CONDITION

Turn the ignition on.

With the scan tool, clear all DTC's.

Cycle the Wiper Switch on and off 3 times.

With the scan tool, read DTC's.

Does the scan tool display this DTC as active?

Yes

Go To 2).

No

The condition that caused this symptom is currently not present. Check for an intermittent condition by inspecting the related wiring harness for chafed, pierced, pinched, and partially broken wires. Also, inspect the related connectors for broken, bent, pushed out, spread, corroded, or contaminated terminals. Repair as necessary. Perform BODY VERIFICATION TEST - VER 1 . 2) (W7) WIPER PARK SWITCH SENSE CIRCUIT SHORTED TO VOLTAGE

Turn the ignition off.

Disconnect the Front Wiper Motor harness connector.

Turn the ignition on.

Using a 12-volt test light connected to ground, probe the (W7) Wiper Park Switch Sense circuit.

Does the test light illuminate brightly?

Yes

Repair the (W7) Wiper Park Switch Sense circuit for a short to voltage. Perform BODY VERIFICATION TEST - VER 1 .

No

Go To 3). 3) CHECK THE FRONT WIPER MOTOR

Connect a jumper wire between the (W7) Wiper Park Switch Sense circuit and ground.

With the scan tool, read the Front Wiper Park Switch Sense.

Does the Front Wiper Park Switch Sense display: True?

Yes

Replace the Front Wiper Motor in accordance with the Service Information. Perform BODY VERIFICATION TEST - VER 1 .

No

Go To 4). 4) CHECK (W7) WIPER PARK SWITCH SENSE CIRCUIT FOR AN OPEN

Turn the ignition off.

Disconnect the TIPM C7 harness connector.

Measure the resistance of the (W7) Wiper Park Switch Sense circuit between the Front Wiper Motor harness connector and the TIPM C7 harness connector.

Is the resistance below 10.0 ohms?

Yes

Replace the Totally Integrated Power Module (TIPM) in accordance with the Service Information. Perform BODY VERIFICATION TEST - VER 1 .

No

Repair the (W7) Wiper Park Switch Sense circuit for an open. Perform BODY VERIFICATION TEST - VER 1 .

For complete wiring diagrams, refer to SYSTEM WIRING DIAGRAMS article.

With the ignition on.

 Set Condition:

The Totally Integrated Power Module (TIPM) detects a short to ground on the Rear Wiper Park Switch Sense circuit.

1) INTERMITTENT CONDITION

Turn the ignition on.

With the scan tool, clear all DTC's.

Turn the Rear Wipers on then off.

With the scan tool, read DTC's.

Does the scan tool display this DTC as active?

Yes

Go To 2).

No

The condition that caused this symptom is currently not present. Check for an intermittent condition by inspecting the related wiring harness for chafed, pierced, pinched, and partially broken wires. Also, inspect the related connectors for broken, bent, pushed out, spread, corroded, or contaminated terminals. Repair as necessary. Perform BODY VERIFICATION TEST - VER 1 . 2) REAR WIPER MOTOR

Turn the ignition off.

Disconnect the Rear Wiper Motor harness connector.

Turn the ignition on.

With the scan tool, read the Rear Wiper Park Switch Sense.

Does the Rear Wiper Park Switch Sense display: True?

Yes

Replace the Rear Wiper Motor in accordance with the Service Information. Perform BODY VERIFICATION TEST - VER 1 .

No

Go To 3). 3) CHECK (W17) REAR WIPER PARK SWITCH SENSE CIRCUIT FOR A SHORT TO

Turn the ignition off.

Disconnect the TIPM C7 harness connector.

Measure the resistance between ground and the (W17) Rear Wiper Park Switch Sense Circuit.

Is the resistance above 10k ohms?

Yes

Replace the TIPM in accordance with the service information. Perform BODY VERIFICATION TEST - VER 1 .

No

Repair the (W7) Wiper Park Switch Sense circuit for a short to ground. Perform BODY VERIFICATION TEST - VER 1 .

For complete wiring diagrams, refer to SYSTEM WIRING DIAGRAMS article.

With the ignition on.

 Set Condition:

The Totally Integrated Power Module (TIPM) does not detect a change from High to Low voltage on the Rear Wiper Park Switch Sense Circuit.

1) INTERMITTENT CONDITION

Turn the ignition on.

With the scan tool, clear all DTC's.

Cycle the Wiper Switch on and off 3 times.

With the scan tool, read DTC's.

Does the scan tool display this DTC as active?

Yes

Go To 2).

No

The condition that caused this symptom is currently not present. Check for an intermittent condition by inspecting the related wiring harness for chafed, pierced, pinched, and partially broken wires. Also, inspect the related connectors for broken, bent, pushed out, spread, corroded, or contaminated terminals. Repair as necessary. Perform BODY VERIFICATION TEST - VER 1 . 2) (W17) WIPER PARK SWITCH SENSE CIRCUIT SHORTED TO VOLTAGE

Turn the ignition off.

Disconnect the Rear Wiper Motor harness connector.

Turn the ignition on.

Using a 12-volt test light connected to ground, probe the (W17) Rear Wiper Park Switch Sense circuit.

Does the test light illuminate brightly?

Yes

Repair the (W17) Rear Wiper Park Switch Sense circuit for a short to voltage. Perform BODY VERIFICATION TEST - VER 1 .

No

Go To 3). 3) CHECK THE REAR WIPER MOTOR

Connect a jumper wire between the (W17) Rear Wiper Park Switch Sense circuit and ground.

With the scan tool, read the Rear Wiper Park Switch Sense.

Does the Rear Wiper Park Switch Sense display: True?

Yes

Replace the Rear Wiper Motor in accordance with the Service Information. Perform BODY VERIFICATION TEST - VER 1 .

No

Go To 4). 4) (W17) REAR WIPER PARK SWITCH SENSE CIRCUIT OPEN

Turn the ignition off.

Disconnect the TIPM C7 harness connector.

Measure the resistance of the (W17) Rear Wiper Park Switch Sense circuit between the Rear Wiper Motor harness connector and the TIPM C7 harness connector.

Is the resistance below 10.0 ohms?

Yes

Replace the Totally Integrated Power Module (TIPM) in accordance with the Service Information. Perform BODY VERIFICATION TEST - VER 1 .

No

Repair the (W17) Rear Wiper Park Switch Sense circuit for an open. Perform BODY VERIFICATION TEST - VER 1 .

For complete wiring diagrams, refer to SYSTEM WIRING DIAGRAMS article.

With the Headlamp Washers activated.

 Set Condition:

When the Totally Integrated Power Module (TIPM) detects an HIGH condition.

1) INTERMITTENT CONDITION

Turn the ignition on.

With the scan tool, clear all DTC's.

Turn the Headlamp Washers on.

With the scan tool, read DTC's.

Does the scan tool display active: B2324-HEADLAMP WASHER MOTOR CONTROL CIRCUIT

Yes

Go To 2).

No

The condition that caused this symptom is currently not present. Check for an intermittent condition by inspecting the related wiring harness for chafed, pierced, pinched, and partially broken wires. Also, inspect the related connectors for broken, bent, pushed out, spread, corroded, or contaminated terminals. Repair as necessary.

Perform BODY VERIFICATION TEST - VER 1 . 2) CHECK HEADLAMP WASHER RELAY

Turn the ignition off.

Remove the Headlamp Washer relay.

Turn the ignition on.

Turn the Headlamp Washers on.

With the scan tool, read DTC's.

Does the scan tool display active: B2324-HEADLAMP WASHER MOTOR CONTROL CIRCUIT

Yes

Go To 3).

No

Go To 5). 3) (W24) HEADLAMP WASHER RELAY CONTROL CIRCUIT OPEN

Turn the ignition off.

Disconnect the TIPM C3 harness connector.

Measure the resistance of the (W24) Headlamp Washer Relay Control circuit between the Headlamp Washer Relay connector and the TIPM C3 harness connector.

Is the resistance below 10.0 ohms?

Yes

Go To 4).

No

Repair the (W24) Headlamp Washer Relay Control circuit for an open. Perform BODY VERIFICATION TEST - VER 1 . 4) (W24) HEADLAMP WASHER RELAY CONTROL CIRCUIT SHORTED TO VOLTAGE

Turn the ignition on.

Measure for voltage on the (W24) Headlamp Washer Relay Control circuit.

Is the voltage above 10.0 volts?

Yes

Repair the (W24) Headlamp Washer Relay Control circuit for a short to voltage. Perform BODY VERIFICATION TEST - VER 1 .

No

Replace the Totally Integrated Power Module (TIPM) in accordance with the Service Information. Perform BODY VERIFICATION TEST - VER 1 . 5) HEADLAMP WASHER RELAY

Turn the ignition off.

Replace the Headlamp Washer relay with a known good relay.

Turn the ignition on.

Turn the Headlamp Washers on.

With the scan tool, read DTC's.

Does the scan tool display active: B2324-HEADLAMP WASHER MOTOR CONTROL CIRCUIT

Yes

Go To 6).

No

Test Complete. Perform BODY VERIFICATION TEST - VER 1 . 6) (W23) HEADLAMP WASHER MOTOR CONTROL CIRCUIT OPEN

Turn the ignition off.

Remove the Headlamp Washer relay.

Disconnect the Headlamp Washer Motor harness connector.

Measure the resistance of the (W23) Headlamp Washer Motor Control circuit at the Headlamp Washer Motor harness connector and the Headlamp Washer Relay connector.

Is the resistance below 10.0 ohms?

Yes

Go To 7).

No

Repair the (W23) Headlamp Washer Motor Control circuit for an open. Perform BODY VERIFICATION TEST - VER 1 . 7) (W23) HEADLAMP WASHER MOTOR CONTROL CIRCUIT SHORTED TO VOLTAGE

Turn the ignition on.

Measure for voltage on the (W23) Headlamp Washer Motor Control circuit.

Is the voltage above 10.0 volts?

Yes

Repair the (W23) Headlamp Washer Motor Control circuit for a short to voltage. Perform BODY VERIFICATION TEST - VER 1 .

No

Replace the Headlamp Washer Motor in accordance with the Service Information. Perform BODY VERIFICATION TEST - VER 1 .