Description

Trunk lid opener switch (exterior) circuit malfunction

Detection condition

• BCM detects a short to ground in the trunk lid opener switch (exterior) circuit.

Fail-safe

Not applicable

Possible cause

• Trunk lid opener switch (exterior) connector or terminal malfunction

• Trunk lid opener switch (exterior) malfunction

• BCM connector or terminal malfunction

• Short to ground in wiring harness between trunk lid opener switch (exterior) terminal A and BCM terminal 2S

• BCM malfunction

Step

Inspection

Action

1

• Clear the DTC for the BCM using the M-MDS.

  (See CLEARING DTC [BCM].)

• Retrieve the BCM DTCs using the M-MDS.

  (See DTC INSPECTION [BCM].)

• Is the same DTC displayed?

Yes

Go to the next step.

No

Go to Step 7.

2

• Switch the ignition off.

• Disconnect the negative battery cable.

  (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION.)

• Disconnect the trunk lid opener switch (exterior) 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 the trunk lid opener switch (exterior).

  (See TRUNK LID OPENER SWITCH INSPECTION.)

• Is the trunk lid opener switch (exterior) normal?

Yes

Go to the next step.

No

Replace the trunk lid opener switch (exterior), then go to Step 6.

(See TRUNK LID OPENER SWITCH REMOVAL/INSTALLATION.)

4

• Disconnect the BCM 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

• Verify that the trunk lid opener switch (exterior) and BCM connectors are disconnected.

• Inspect for continuity between trunk lid opener switch (exterior) 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 trunk lid opener switch (exterior) terminal A and BCM terminal 2S.

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

• Always reconnect all disconnected connectors.

• Connect the negative battery cable.

  (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION.)

• Clear the DTC for the BCM using the M-MDS.

  (See CLEARING DTC [BCM].)

• Retrieve the BCM DTCs using the M-MDS.

  (See DTC INSPECTION [BCM].)

• Is the same DTC displayed?

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

• 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.