DTC U201F:00 [ADVANCED KEYLESS AND START SYSTEM]

id0902e1388800

Detection Condition

• Keyless receiver cannot communicate

Possible Causes

• Open or short circuit in wiring harness between keyless receiver and keyless control module

• Keyless receiver malfunction

• Keyless control module malfunction

System Wiring Diagram

am2zzw00002592

Diagnostic Procedure

Step

Inspection

Action

1

INSPECT KEYLESS RECEVER CONNECTOR

•  Turn the ignition switch to the LOCK position.

•  Disconnect the negative battery cable.

•  Disconnect the keyless receiver connector.

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

•  Are the connector and terminals normal?

Yes

Go to the next step.

No

Repair/replace the keyless receiver connector or terminal.

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.

3

INSPECT KEYLESS RECEIVER SIGNAL OUTPUT CIRCUIT CONTINUITY

•  Inspect for continuity between keyless receiver connector terminal C and keyless control module connector terminal 2H.

•  Is there continuity?

Yes

Go to the next step.

No

Repair or replace the keyless receiver wiring harness.

4

INSPECT KEYLESS RECEIVER

•  Reconnect the disconnected connectors.

•  Connect the negative battery cable.

•  Inspect the voltage of keyless receiver terminal B, and D.
(See KEYLESS RECEIVER INSPECTION [ADVANCED KEYLESS AND START SYSTEM].)

•  Is the voltage normal?

Yes

Go to the next step.

No

Replace the keyless receiver.

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

5

VERIFY DTCs

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

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

•  Is DTC U201F:00 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 KEYLESS RECEVER CONNECTOR • Turn the ignition switch to the LOCK position. • Disconnect the negative battery cable. • Disconnect the keyless receiver connector. • Inspect the keyless receiver connector. (Corrosion, damage, and disconnected pins) • Are the connector and terminals normal?	Yes	Go to the next step.
1		No	Repair/replace the keyless receiver connector or terminal.
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.
3	INSPECT KEYLESS RECEIVER SIGNAL OUTPUT CIRCUIT CONTINUITY • Inspect for continuity between keyless receiver connector terminal C and keyless control module connector terminal 2H. • Is there continuity?	Yes	Go to the next step.
3		No	Repair or replace the keyless receiver wiring harness.
4	INSPECT KEYLESS RECEIVER • Reconnect the disconnected connectors. • Connect the negative battery cable. • Inspect the voltage of keyless receiver terminal B, and D. (See KEYLESS RECEIVER INSPECTION [ADVANCED KEYLESS AND START SYSTEM].) • Is the voltage normal?	Yes	Go to the next step.
4		No	Replace the keyless receiver. (See KEYLESS RECEIVER REMOVAL/INSTALLATION [ADVANCED KEYLESS AND START SYSTEM].)
5	VERIFY DTCs • Clear DTCs using the M-MDS. (See CLEARING DTC [ADVANCED KEYLESS AND START SYSTEM].) • Verify DTCs using the M-MDS. (See DTC INSPECTION [ADVANCED KEYLESS AND START SYSTEM].) • Is DTC U201F:00 displayed?	Yes	Replace the keyless control module. (See KEYLESS CONTROL MODULE REMOVAL/INSTALLATION [ADVANCED KEYLESS AND START SYSTEM].)
5		No	DTC troubleshooting completed.