DTC P1536:13 [BCM]

id0902f5415500

Description

• Parking brake switch circuit malfunction

Detection Condition

• Open circuit in parking brake switch circuit with the parking brake lever applied (parking brake switch on).

Possible Causes

• Parking brake switch connector or terminals malfunction

• Parking brake switch malfunction

• BCM connector or terminals malfunction

• Open circuit in wiring harness between parking brake switch terminal A and BCM terminal 8A

• BCM malfunction

System Wiring Diagram

am6zzw00007173

Diagnostic Procedure

Step

Inspection

Action

1

PERFORM DTC INSPECTION

•  Clear the DTCs using the M-MDS.
(See CLEARING DTC [BCM].)

•  Perform the BCM DTC inspection using the M-MDS.
(See DTC INSPECTION [BCM].)

•  Is the DTC P1536:13 present?

Yes

Go to the next step.

No

DTC troubleshooting completed.

2

INSPECT PARKING BRAKE SWITCH CONNECTOR CONDITION

•  Switch the ignition to off.

•  Disconnect the negative battery cable.

•  Disconnect the parking brake switch connector.

•  Inspect the connector and terminals (corrosion, damage, pin disconnection).

•  Is there any malfunction?

Yes

Repair or replace the connector or terminals, then go to Step 6.

No

Go to the next step.

3

INSPECT PARKING BRAKE SWITCH

•  Inspect the parking brake switch.
(See PARKING BRAKE SWITCH INSPECTION.)

•  Is there any malfunction?

Yes

Replace the parking brake switch, then go to Step 6.

(See PARKING BRAKE LEVER REMOVAL/INSTALLATION.)

No

Go to the next step.

4

INSPECT BCM CONNECTOR CONDITION

•  Disconnect the BCM connector.

•  Inspect the connector and terminals (corrosion, damage, pin disconnection).

•  Is there any malfunction?

Yes

Repair or replace the connector or terminals, then go to Step 6.

No

Go to the next step.

5

INSPECT PARKING BRAKE SWITCH CIRCUIT FOR OPEN CIRCUIT

•  Parking brake switch and BCM connectors are disconnected.

•  Reconnect the negative battery cable.

•  Switch the ignition to ON.

•  Measure the voltage at the BCM terminal 8A (wiring harness-side).

•  Can the voltage be measured?

Yes

Repair or replace the wiring harness for a possible open circuit, then go to the next step.

No

Go to the next step.

6

VERIFY TROUBLESHOOTING COMPLETED

•  Make sure to reconnect all disconnected connectors.

•  Reconnect the negative battery cable.

•  Clear the DTCs using the M-MDS.
(See CLEARING DTC [BCM].)

•  Perform the BCM DTC inspection using the M-MDS.
(See DTC INSPECTION [BCM].)

•  Is the DTC P1536:13 present?

Yes

Repeat the inspection from Step 1.

•  If the malfunction recurs, replace the BCM.
(See BODY CONTROL MODULE (BCM) REMOVAL/INSTALLATION.)

Go to the next step.

No

Go to the next step.

7

VERIFY THAT NO OTHER DTCs ARE PRESENT

•  Are any DTCs present?

Yes

Go to the applicable DTC inspection.

(See DTC TABLE [BCM].)

No

DTC troubleshooting completed.

Step	Inspection		Action
1	PERFORM DTC INSPECTION • Clear the DTCs using the M-MDS. (See CLEARING DTC [BCM].) • Perform the BCM DTC inspection using the M-MDS. (See DTC INSPECTION [BCM].) • Is the DTC P1536:13 present?	Yes	Go to the next step.
1		No	DTC troubleshooting completed.
2	INSPECT PARKING BRAKE SWITCH CONNECTOR CONDITION • Switch the ignition to off. • Disconnect the negative battery cable. • Disconnect the parking brake switch connector. • Inspect the connector and terminals (corrosion, damage, pin disconnection). • Is there any malfunction?	Yes	Repair or replace the connector or terminals, then go to Step 6.
2		No	Go to the next step.
3	INSPECT PARKING BRAKE SWITCH • Inspect the parking brake switch. (See PARKING BRAKE SWITCH INSPECTION.) • Is there any malfunction?	Yes	Replace the parking brake switch, then go to Step 6. (See PARKING BRAKE LEVER REMOVAL/INSTALLATION.)
3		No	Go to the next step.
4	INSPECT BCM CONNECTOR CONDITION • Disconnect the BCM connector. • Inspect the connector and terminals (corrosion, damage, pin disconnection). • Is there any malfunction?	Yes	Repair or replace the connector or terminals, then go to Step 6.
4		No	Go to the next step.
5	INSPECT PARKING BRAKE SWITCH CIRCUIT FOR OPEN CIRCUIT • Parking brake switch and BCM connectors are disconnected. • Reconnect the negative battery cable. • Switch the ignition to ON. • Measure the voltage at the BCM terminal 8A (wiring harness-side). • Can the voltage be measured?	Yes	Repair or replace the wiring harness for a possible open circuit, then go to the next step.
5		No	Go to the next step.
6	VERIFY TROUBLESHOOTING COMPLETED • Make sure to reconnect all disconnected connectors. • Reconnect the negative battery cable. • Clear the DTCs using the M-MDS. (See CLEARING DTC [BCM].) • Perform the BCM DTC inspection using the M-MDS. (See DTC INSPECTION [BCM].) • Is the DTC P1536:13 present?	Yes	Repeat the inspection from Step 1. • If the malfunction recurs, replace the BCM. (See BODY CONTROL MODULE (BCM) REMOVAL/INSTALLATION.) Go to the next step.
6		No	Go to the next step.
7	VERIFY THAT NO OTHER DTCs ARE PRESENT • Are any DTCs present?	Yes	Go to the applicable DTC inspection. (See DTC TABLE [BCM].)
7		No	DTC troubleshooting completed.