DTC

Security light flashing pattern

13

ID number signal is not received

M-MDS display

Keyless control module

-

Instrument cluster

B2431

PCM

P1260

POSSIBLE CAUSE

• The procedure fails to program the transponder into PCM

• Any of the following items are touching or near the key head.

• Spare keys

• Keys for other vehicles equipped with an immobilizer system

• Any metallic object

• Any electronic device, or any credit or other cards with magnetic strips

STEP

INSPECTION

ACTION

1

• Does M-MDS indicate DTC B2431?

Yes

Go to Step 3.

No

Go to next step.

2

• Does M-MDS indicate DTC B1600?

Yes

Go to SECURITY LIGHT 13, DTC -/B1600/P1260.

(See SECURITY LIGHT 13, DTC -/B1600/P1260 [IMMOBILIZER SYSTEM (ADVANCED KEYLESS SYSTEM)].)

No

Go to next step.

3

• Erase key ID number using M-MDS and register key ID number.

  (See IMMOBILIZER SYSTEM COMPONENT REPLACEMENT/KEY ADDITION AND CLEARING [ADVANCED KEYLESS SYSTEM])

• Using registered key, turn ignition switch to ON position.

• Does M-MDS indicate DTC -/B2431/P1260 again?

Yes

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

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

No

DTC troubleshooting completed.

4

• Using registered key, turn ignition switch to ON position.

• Does M-MDS indicate DTC -/B2431/P1260 again?

Yes

Replace instrument cluster and reprogram immobilizer system.

No

DTC troubleshooting completed.