DTC B2982 [BCM]

id0902f5838300

Description

Parking brake switch circuit malfunction
Detection condition
•  Open circuit in parking brake switch circuit with the parking brake lever pulled (parking brake switch on).
Possible cause
•  Parking brake switch connector or terminal malfunction
•  Parking brake switch malfunction
•  BCM connector or terminal malfunction
•  Open circuit in wiring harness between parking brake switch terminal A and BCM terminal 1K
•  BCM malfunction

Diagnostic procedure

Step

Inspection

Action
1
INSPECT PARKING BRAKE SWITCH CONNECTOR
•  Turn the ignition switch to the OFF position.
•  Disconnect the negative battery cable.
•  Disconnect the parking brake switch connector.
•  Inspect the connector engagement and connection condition and inspect the terminals for damage, deformation, corrosion, or disconnection.
•  Is there any malfunction?
Yes
Repair or replace the connector, then go to Step 5.
No
Go to the next step.
2
INSPECT PARKING BRAKE SWITCH
•  Inspect the parking brake switch.
•  Is there any malfunction?
Yes
Replace the parking brake lever, then go to Step 5.
(See PARKING BRAKE REMOVAL/INSTALLATION [2WD (L.H.D.)].)
(See PARKING BRAKE REMOVAL/INSTALLATION [2WD (R.H.D.)].)
(See PARKING BRAKE REMOVAL/INSTALLATION [4WD (L.H.D.)].)
(See PARKING BRAKE REMOVAL/INSTALLATION [4WD (R.H.D.)].)
No
Go to the next step.
3
INSPECT BCM CONNECTOR
•  Disconnect the BCM connector.
•  Inspect the connector engagement and connection condition and inspect the terminals for damage, deformation, corrosion, or disconnection.
•  Is there any malfunction?
Yes
Repair or replace the connector, then go to Step 5.
No
Go to the next step.
4
INSPECT FOR OPEN CIRCUIT IN PARKING BRAKE SWITCH CIRCUIT
•  Verify that the parking brake switch and BCM connectors are disconnected.
•  Inspect for continuity between parking brake switch terminal A (wiring harness-side) and BCM terminal 1K (wiring harness-side).
•  Is there continuity?
Yes
Go to the next step.
No
Repair or replace the wiring harness which has an open circuit, then go to the next step.
5
VERIFY DTC TROUBLESHOOTING COMPLETED
•  Make sure to reconnect all disconnected connectors.
•  Reconnect the negative battery cable.
•  Clear the DTC for the BCM using the M-MDS.
•  Retrieve the BCM DTCs using the M-MDS.
•  Is the same DTC displayed?
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.
6
VERIFY IF OTHER DTCs DISPLAYED
•  Are any other DTCs displayed?
Yes
Repair or replace the malfunctioning part according to the applicable DTC troubleshooting.
(See DTC TABLE [BCM].)
No
DTC troubleshooting completed.