DTC B10D1:23 [ADVANCED KEYLESS AND START SYSTEM]

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Detection Condition

• The request switch (LF) ON signal is detected for 2 min or more while a vehicle speed signal of 5 km/h {3 mph} or more is input

Possible Causes

• Outer handle (LF) connector or terminals malfunction

• Keyless control module connector or terminals malfunction

• Short to ground in wiring harness between outer handle (LF) and keyless control module

• Request switch (LF) malfunction

• Keyless control module malfunction

System Wiring Diagram

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Diagnostic Procedure

Step

Inspection

Action

1

INSPECT OUTER HANDLE (LF) CONNECTOR

•  Turn the ignition switch to the LOCK position.

•  Disconnect the negative battery cable.

•  Disconnect the outer handle (LF) connector.

•  Inspect the outer handle (LF) connector. (Corrosion, damage, and disconnected pins)

•  Are the connector and terminals normal?

Yes

Go to the next step.

No

Repair/replace the outer handle (LF) connector or terminal, then go to Step 5.

2

INSPECT KEYLESS CONTROL MODULE CONNECTOR

•  Disconnect the keyless control module connector.

•  Inspect the keyless control module connector. (Corrosion, damage, and disconnected pins)

•  Are the connector and terminals normal?

Yes

Go to the next step.

No

Repair/replace the keyless control module connector or terminal, then go to Step 5.

3

INSPECT WIRING HARNESS BETWEEN OUTER HANDLE (LF) AND KEYLESS CONTROL MODULE FOR SHORT TO GROUND

•  Outer handle (LF) and keyless control module connectors are disconnected.

•  Inspect for continuity between outer handle (LF) terminal A (wiring harness-side) and body ground.

•  Is there continuity?

Yes

Repair or replace the wiring harness between outer handle (LF) and keyless control module, then go to Step 5.

No

Go to the next step.

4

INSPECT REQUEST SWITCH (LF)

•  Inspect the request switch (LF).
(See REQUEST SWITCH INSPECTION [ADVANCED KEYLESS AND START SYSTEM].)

•  Is the request switch (LF) normal?

Yes

Go to the next step.

No

Replace the request switch (LF), then go to the next step.

(See REQUEST SWITCH REMOVAL/INSTALLATION [ADVANCED KEYLESS AND START SYSTEM].)

5

VERIFY DTCs

•  Reconnect all disconnected connectors.

•  Reconnect the negative battery cable.

•  Clear the DTCs using the M-MDS.
(See CLEARING DTC [ADVANCED KEYLESS AND START SYSTEM].)

•  Verify the DTCs using the M-MDS.
(See DTC INSPECTION [ADVANCED KEYLESS AND START SYSTEM].)

•  Is the DTC B10D1:23 displayed?

Yes

Replace the keyless control module.

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

No

DTC troubleshooting completed.

Step	Inspection		Action
1	INSPECT OUTER HANDLE (LF) CONNECTOR • Turn the ignition switch to the LOCK position. • Disconnect the negative battery cable. • Disconnect the outer handle (LF) connector. • Inspect the outer handle (LF) connector. (Corrosion, damage, and disconnected pins) • Are the connector and terminals normal?	Yes	Go to the next step.
1		No	Repair/replace the outer handle (LF) connector or terminal, then go to Step 5.
2	INSPECT KEYLESS CONTROL MODULE CONNECTOR • Disconnect the keyless control module connector. • Inspect the keyless control module connector. (Corrosion, damage, and disconnected pins) • Are the connector and terminals normal?	Yes	Go to the next step.
2		No	Repair/replace the keyless control module connector or terminal, then go to Step 5.
3	INSPECT WIRING HARNESS BETWEEN OUTER HANDLE (LF) AND KEYLESS CONTROL MODULE FOR SHORT TO GROUND • Outer handle (LF) and keyless control module connectors are disconnected. • Inspect for continuity between outer handle (LF) terminal A (wiring harness-side) and body ground. • Is there continuity?	Yes	Repair or replace the wiring harness between outer handle (LF) and keyless control module, then go to Step 5.
3		No	Go to the next step.
4	INSPECT REQUEST SWITCH (LF) • Inspect the request switch (LF). (See REQUEST SWITCH INSPECTION [ADVANCED KEYLESS AND START SYSTEM].) • Is the request switch (LF) normal?	Yes	Go to the next step.
4		No	Replace the request switch (LF), then go to the next step. (See REQUEST SWITCH REMOVAL/INSTALLATION [ADVANCED KEYLESS AND START SYSTEM].)
5	VERIFY DTCs • Reconnect all disconnected connectors. • Reconnect the negative battery cable. • Clear the DTCs using the M-MDS. (See CLEARING DTC [ADVANCED KEYLESS AND START SYSTEM].) • Verify the DTCs using the M-MDS. (See DTC INSPECTION [ADVANCED KEYLESS AND START SYSTEM].) • Is the DTC B10D1:23 displayed?	Yes	Replace the keyless control module. (See KEYLESS CONTROL MODULE REMOVAL/INSTALLATION [ADVANCED KEYLESS AND START SYSTEM].)
5		No	DTC troubleshooting completed.