DTC B1219:11 [REAR BODY CONTROL MODULE (RBCM)]

id0902p4033100

Description

Trunk lid opener switch (interior) circuit malfunction
Detection condition
•  Rear body control module (RBCM) detects a short to ground in trunk lid opener switch (interior) circuit.
Fail-safe function
Not applicable
Possible cause
•  Trunk lid opener switch (interior) connector or terminal malfunction
•  Trunk lid opener switch (interior) malfunction
•  Rear body control module (RBCM) connector or terminal malfunction
•  Short to ground in wiring harness between rear body control module (RBCM) terminal 2D and trunk lid opener switch (interior) terminal A
•  Rear body control module (RBCM) malfunction

Diagnostic Procedure

Step

Inspection

Action
1
VERIFY REAR BODY CONTROL MODULE (RBCM) DTCs AGAIN
•  Clear the DTC for the rear body control module (RBCM) using the M-MDS.
•  Retrieve the rear body control module (RBCM) DTCs using the M-MDS.
•  Is the same DTC displayed?
Yes
Go to the next step.
No
Go to Step 7.
2
INSPECT TRUNK LID OPENER SWITCH (INTERIOR) CONNECTOR CONDITION
•  Switch the ignition off.
•  Disconnect the negative battery cable.
•  Disconnect the trunk lid opener switch (interior) connector.
•  Inspect the connector engagement and connection condition and inspect the terminals for damage, deformation, corrosion, or disconnection.
•  Is the connector normal?
Yes
Go to the next step.
No
Repair or replace the connector, then go to Step 6.
3
INSPECT TRUNK LID OPENER SWITCH (INTERIOR)
•  Inspect the trunk lid opener switch (interior).
•  Is the trunk lid opener switch (interior) normal?
Yes
Go to the next step.
No
Replace the trunk lid opener switch (interior), then go to Step 6.
(See TRUNK LID OPENER SWITCH REMOVAL/INSTALLATION.)
4
INSPECT REAR BODY CONTROL MODULE (RBCM) CONNECTOR CONDITION
•  Disconnect the rear body control module (RBCM) connector.
•  Inspect the connector engagement and connection condition and inspect the terminals for damage, deformation, corrosion, or disconnection.
•  Is the connector normal?
Yes
Go to the next step.
No
Repair or replace the connector, then go to Step 6.
5
INSPECT FOR SHORT TO GROUND IN TRUNK LID OPENER SWITCH (INTERIOR) CIRCUIT
•  Verify that the trunk lid opener switch (interior) and rear body control module (RBCM) connectors are disconnected.
•  Inspect for continuity between trunk lid opener switch (interior) terminal A (wiring harness-side) and body ground.
•  Is there continuity?
Yes
Refer to the wiring diagram and verify whether or not there is a common connector between rear body control module (RBCM) terminal 2D and trunk lid opener switch (interior) terminal A.
If there is a common connector:
•  Determine the malfunctioning part by inspecting the common connector and the terminal for corrosion, damage, or pin disconnection, and the common wiring harness for a short to ground.
•  Repair or replace the malfunctioning part.
If there is no common connector:
•  Repair or replace the wiring harness which has a short to ground.
Go to the next step.
No
Go to the next step.
6
VERIFY THAT REPAIRS HAVE BEEN COMPLETED
•  Always reconnect all disconnected connectors.
•  Reconnect the negative battery cable.
•  Clear the DTC for the rear body control module (RBCM) using the M-MDS.
•  Retrieve the rear body control module (RBCM) DTCs using the M-MDS.
•  Is the same DTC displayed?
Yes
Repeat the inspection from Step 1.
•  If the malfunction recurs, replace the rear body control module (RBCM).
Go to the next step.
No
Go to the next step.
7
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 [REAR BODY CONTROL MODULE (RBCM)].)
No
DTC troubleshooting completed.