DTC P1536:13 [BCM]
id0902f5415500
|
DESCRIPTION |
Parking brake switch circuit malfunction |
|---|---|
|
DETECTION CONDITION
|
• Open circuit in the parking brake switch circuit with the parking brake lever applied (parking brake switch on).
|
|
POSSIBLE CAUSE
|
• 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 2Q
• BCM malfunction
|
 |
|
Diagnostic Procedure
|
STEP |
INSPECTION |
ACTION |
|
|---|---|---|---|
|
1
|
CONFIRM BCM DTC
• Clear the DTC using the M-MDS.
(See CLEARING DTC [BCM].)
• Perform the BCM DTC inspection using the M-MDS.
(See DTC INSPECTION [BCM].)
• Is the same DTC present?
|
Yes
|
Go to the next step.
|
|
No
|
Go to Step 7.
|
||
|
2
|
INSPECT PARKING BRAKE SWITCH CONNECTOR AND TERMINALS
• 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.
• Is there any malfunction?
|
Yes
|
Replace the parking brake switch, then go to Step 6.
|
|
No
|
Go to the next step.
|
||
|
4
|
INSPECT BCM CONNECTOR AND TERMINALS
• 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
• Verify that the parking brake switch and BCM connectors are disconnected.
• Reconnect the BCM connector.
• Reconnect the negative battery cable.
• Measure the voltage at the parking brake switch terminal A (wiring harness-side).
• Is there any voltage?
|
Yes
|
Go to the next step.
|
|
No
|
Repair or replace the wiring harness for a possible open circuit, then go to the next step.
|
||
|
6
|
VERIFY TROUBLESHOOTING COMPLETED
• Make sure to reconnect all disconnected connectors.
• Reconnect the negative battery cable.
• Clear the DTC using the M-MDS.
(See CLEARING DTC [BCM].)
• Perform the BCM DTC inspection using the M-MDS.
(See DTC INSPECTION [BCM].)
• Is the same DTC present?
|
Yes
|
Repeat the inspection from Step 1.
• If the malfunction recurs, replace the BCM.
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.
|
||