DTC

Security light flashing pattern

11

Communication error between the keyless control module and the coil antenna

M-MDS display

Keyless control module

B1681

Instrument cluster

B1681

PCM

P1260

POSSIBLE CAUSE

• Defective coil antenna

• Defective keyless control module

• Defective wiring harness

STEP

INSPECTION

ACTION

1

• Disconnect coil antenna connector.

• Turn ignition switch to ON position.

• Measure voltage at terminal D of coil antenna connector.

• Is voltage more than 8 V?

Yes

Go to next step.

No

Repair wiring harness.

2

• Turn ignition switch to LOCK position.

• Inspect wiring harness between coil antenna terminal C and ground for following.

• Short to power supply

• Open circuit

• Is wiring harness okay?

Yes

Go to next step.

No

Repair wiring harness.

3

• Connect coil antenna connector.

• Turn ignition switch to ON position.

• Is there continuity between the following terminals?

• 2Y—B

• 2AA—A

Yes

Replace coil antenna, then go to the next step.

(See COIL ANTENNA REMOVAL/INSTALLATION [ADVANCED KEYLESS SYSTEM])

No

Repair wiring harness.

4

• Turn the ignition switch to the ON position.

• Is the DTC displayed?

• Security light: 11

• M-MDS: B1681/B1681/P1260

Yes

Replace keyless control module, then go to the next step.

(See KEYLESS CONTROL MODULE REMOVAL/INSTALLATION [ADVANCED KEYLESS SYSTEM])

No

DTC troubleshooting completed.