NO.1 DOOR CANNOT BE LOCKED/UNLOCKED BY TRANSMITTER [ADVANCED KEYLESS AND START SYSTEM]

Step	Inspection	Action
1	• Does the operation indicator light illuminate when the transmitter (advanced key) is operated?	Yes	Go to the next step.
No	Go to Step 8.
2	• Did the customer operate the transmitter (advanced key) within the operation range (2.5 m {8.2 ft} from the vehicle)?	Yes	Go to the next step.
No	System is normal. (Explain to the customer to operate the transmitter within the operation range.)
3	• Did the customer operate at a place where extrinsic noise is received such as a TV tower, electric power station, or a broadcast station.	Yes	System is normal. (Explain to the customer to operate the transmitter (advanced key) away from extrinsic noise.)
No	Go to the next step.
4	• Did the customer operate the transmitter (advanced key) with all the following conditions met? ― All doors are closed. ― The auxiliary key is not inserted in the ignition key cylinder. ― The start knob is in the LOCK position. ― The start knob is being pressed.	Yes	Go to the next step.
No	System is normal. (Explain to the customer that the system does not operate due to the cancel function with the auxiliary key in the ignition key cylinder.)
5	• Did the malfunction occur after any non-standard equipment (any control unit with built-in micro computer such as radio set, mobile telephone, and TV) was installed?	Yes	Go to the next step.
No	Go to Step 7.
6	• Turn the ignition switch to the LOCK position. • Disconnect the negative battery cable. • Was the malfunction corrected when the connector of the equipment was disconnected?	Yes	System is normal. (Explain to the customer that noise from the equipment affected the operation.)
No	Go to the next step.
7	• Connect the negative battery cable. • Is lock/unlock possible only near the keyless receivers when the transmitter (advanced key) is operated?	Yes	Go to the next step.
No	Go to Step 9.
8	• Verify the advanced keyless and start system operation using another normal battery. • Does the advanced keyless and start system operate normally?	Yes	Replace the battery, then go to Step 23. (See ADVANCED KEY BATTERY REPLACEMENT [ADVANCED KEYLESS AND START SYSTEM].)
No	Go to the next step.
9	• Visually inspect the transmitter (advanced key) battery. • Are the following correct? ― Battery direction (polarity) ― Battery type (CR2025)	Yes	Go to the next step.
No	Insert the battery correctly or replace it with a specified one (CR2025), then go to Step 23. (See ADVANCED KEY BATTERY REPLACEMENT [ADVANCED KEYLESS AND START SYSTEM].)
10	• Visually inspect the transmitter (advanced key) battery. (See ADVANCED KEY BATTERY REPLACEMENT [ADVANCED KEYLESS AND START SYSTEM].) ― Is there any rust on the battery terminals (+), (-)? ― Is there any poor contact between the battery terminals and the battery when the battery is inserted?	Yes	Replace the transmitter (advanced key) or repair the battery terminals, then go to Step 23.
No	Go to the next step.
11	• Inspect the battery. • Is it normal?	Yes	Go to Step 13.
No	Go to the next step.
12	• Verify the advanced keyless and start system operation using another normal battery. • Does the advanced keyless and start system operate normally?	Yes	Replace the battery, then go to Step 22. (See ADVANCED KEY BATTERY REPLACEMENT [ADVANCED KEYLESS AND START SYSTEM].)
No	Replace the transmitter (advanced key), then go to Step 22.
13	• Inspect the keyless receiver installation condition. • Is the bracket installed securely?	Yes	Go to the next step.
No	Install the bracket securely, then go to the next step.
14	• Inspect the keyless receiver. (See KEYLESS RECEIVER INSPECTION [ADVANCED KEYLESS AND START SYSTEM].) • Is the keyless receiver power supply voltage normal? ― Power supply (+B) (terminal D)	Yes	Go to the next step.
No	Inspect for a burnt fuse (ROOM 15 A) Inspect the power supply system wiring harness for an open or short circuit.
15	• Inspect the keyless receiver. • Is the keyless receiver grounded normally? ― Power supply (0 V) (terminal B)	Yes	Go to the next step.
No	Inspect the ground system wiring harness for an open circuit. Inspect the ground tightening screw and nut for looseness.
16	• Turn the ignition switch to the LOCK position. • Disconnect the negative battery cable. • Disconnect the keyless receiver connector (4-pin) and the keyless control module connector (12-pin). • Inspect the wiring harness between the following terminals for an open or short circuit. ― Terminal C (4-pin) to terminal 2H (12-pin) • Is the wiring harness normal?	Yes	Go to the next step.
No	Repair or replace the wiring harness between the keyless receiver connector and keyless control module connector, then go to the next step.
17	• Are the following keyless control module power supply voltages normal? ― Power supply (IG1) (Terminal 2C) ― Power supply (+B) (Terminals 1D and 1E) ― Power supply (ACC) (Terminal 2A)	Yes	Go to the next step.
No	Inspect for a burnt fuse (ENG10 A, ROOM15 A, P/W 20 A, MIRROR 7.5 A). Inspect the power supply system wiring harness for an open or short circuit, repair or replace if necessary, then go to the next step.
18	• Is the following keyless control module ground voltage normal? ― 0 V (Terminal 3N)	Yes	Go to the next step.
No	Inspect the ground system wiring harness for an open circuit, then go to the next step.
19	• Inspect the following keyless control module (12-pin, 30-pin) signal voltages with the auxiliary key not in the ignition key cylinder, and the start knob in the LOCK position and not being pressed. ― Keyless switch: 10 V or less (Terminal 3W) ― Start knob (push switch): 1.0 V or less (Terminal 3V) ― Power supply (ACC): 1.0 V or less (Terminal 2A) ― Power supply (IG1): 1.0 V or less (Terminal 2C) • Are the signal voltages normal?	Yes	Go to the next step.
No	Inspect the keyless switch. Inspect the keyless switch system wiring harness for an open or short circuit, then go to the next step.
20	• Are the following BCM terminal voltages normal? ― When the front door (RH) is open: B+ (Terminal 7I) ― When the front door (RH) is closed: 1.0 V or less (Terminal 7I) ― When the front door (LH) is open: B+ (Terminal 7M) ― When the front door (LH) is closed: 1.0 V or less (Terminal 7M) ― When the rear door (RH) is open: B+ (Terminal 7O) ― When the rear door (RH) is closed: 1.0 V or less (Terminal 7O) ― When the rear door (LH) is open: B+ (Terminal 7G) ― When the rear door (LH) is closed: 1.0 V or less (Terminal 7G) ― When the liftgate is open: 1.0 V or less (Terminal 7S) ― When the liftgate is closed: B+ (Terminal 7S)	Yes	Inspect the wiring harness between BCM terminal 6W and keyless control module terminal 2F. If there is any open or short circuit, repair or replace the malfunctioning part. If there is no malfunction, go to the next step.
No	Inspect the door latch switch. (See FRONT DOOR LATCH SWITCH INSPECTION.) (See REAR DOOR LATCH SWITCH INSPECTION [5HB].) Inspect the door latch switch system wiring harness for an open or short circuit, then go to the next step.
21	• Is the signal voltage transmitted from the BCM to the door lock actuator normal? • Does BCM terminal voltage change as follows when locking/unlocking using the transmitter (advanced key)? ― Unlocking: 1.0 V or less→B+→1.0V or less (Terminal 3O) ― Locking (Vehicles with double locking system): 1.0 V or less→B+→1.0 V or less (Terminal 3E) ― Locking (Vehicles without double locking system): 1.0 V or less→B+→1.0 V or less (Terminal 3M)	Yes	Go to the next step.
No	Inspect the wiring harness between the BCM and the door lock actuator for an open or short circuit. Inspect the door lock actuator, then go to Step 23. (See FRONT DOOR LOCK ACTUATOR INSPECTION.)
22	• Replace the keyless receiver. • Does the advanced keyless and start system operate normally?	Yes	Troubleshooting completed.
No	Replace the BCM, then go to the next step. (See BODY CONTROL MODULE (BCM) REMOVAL/INSTALLATION.)
23	• Does the advanced keyless and start system operate normally?	Yes	Troubleshooting completed.
No	Verify the malfunction, then go to Step 1 if it recurs.

Step

Inspection

Action

• Does the operation indicator light illuminate when the transmitter (advanced key) is operated?

Yes

Go to the next step.

Go to Step 8.

• Did the customer operate the transmitter (advanced key) within the operation range (2.5 m {8.2 ft} from the vehicle)?

Yes

Go to the next step.

System is normal. (Explain to the customer to operate the transmitter within the operation range.)

• Did the customer operate at a place where extrinsic noise is received such as a TV tower, electric power station, or a broadcast station.

Yes

System is normal. (Explain to the customer to operate the transmitter (advanced key) away from extrinsic noise.)

Go to the next step.

• Did the customer operate the transmitter (advanced key) with all the following conditions met?

― All doors are closed.

― The auxiliary key is not inserted in the ignition key cylinder.

― The start knob is in the LOCK position.

― The start knob is being pressed.

Yes

Go to the next step.

System is normal. (Explain to the customer that the system does not operate due to the cancel function with the auxiliary key in the ignition key cylinder.)

• Did the malfunction occur after any non-standard equipment (any control unit with built-in micro computer such as radio set, mobile telephone, and TV) was installed?

Yes

Go to the next step.

Go to Step 7.

• Turn the ignition switch to the LOCK position.

• Disconnect the negative battery cable.

• Was the malfunction corrected when the connector of the equipment was disconnected?

Yes

System is normal. (Explain to the customer that noise from the equipment affected the operation.)

Go to the next step.

• Connect the negative battery cable.

• Is lock/unlock possible only near the keyless receivers when the transmitter (advanced key) is operated?

Yes

Go to the next step.

Go to Step 9.

• Verify the advanced keyless and start system operation using another normal battery.

• Does the advanced keyless and start system operate normally?

Yes

Replace the battery, then go to Step 23.

(See ADVANCED KEY BATTERY REPLACEMENT [ADVANCED KEYLESS AND START SYSTEM].)

Go to the next step.

• Visually inspect the transmitter (advanced key) battery.

• Are the following correct?

― Battery direction (polarity)

― Battery type (CR2025)

Yes

Go to the next step.

Insert the battery correctly or replace it with a specified one (CR2025), then go to Step 23.

(See ADVANCED KEY BATTERY REPLACEMENT [ADVANCED KEYLESS AND START SYSTEM].)

• Visually inspect the transmitter (advanced key) battery.

(See ADVANCED KEY BATTERY REPLACEMENT [ADVANCED KEYLESS AND START SYSTEM].)

― Is there any rust on the battery terminals (+), (-)?

― Is there any poor contact between the battery terminals and the battery when the battery is inserted?

Yes

Replace the transmitter (advanced key) or repair the battery terminals, then go to Step 23.

Go to the next step.

• Inspect the battery.

• Is it normal?

Yes

Go to Step 13.

Go to the next step.

• Verify the advanced keyless and start system operation using another normal battery.

• Does the advanced keyless and start system operate normally?

Yes

Replace the battery, then go to Step 22.

(See ADVANCED KEY BATTERY REPLACEMENT [ADVANCED KEYLESS AND START SYSTEM].)

Replace the transmitter (advanced key), then go to Step 22.

• Inspect the keyless receiver installation condition.

• Is the bracket installed securely?

Yes

Go to the next step.

Install the bracket securely, then go to the next step.

• Inspect the keyless receiver.

(See KEYLESS RECEIVER INSPECTION [ADVANCED KEYLESS AND START SYSTEM].)

• Is the keyless receiver power supply voltage normal?

― Power supply (+B) (terminal D)

Yes

Go to the next step.

Inspect for a burnt fuse (ROOM 15 A)

Inspect the power supply system wiring harness for an open or short circuit.

• Inspect the keyless receiver.

• Is the keyless receiver grounded normally?

― Power supply (0 V) (terminal B)

Yes

Go to the next step.

Inspect the ground system wiring harness for an open circuit.

Inspect the ground tightening screw and nut for looseness.

• Turn the ignition switch to the LOCK position.

• Disconnect the negative battery cable.

• Disconnect the keyless receiver connector (4-pin) and the keyless control module connector (12-pin).

• Inspect the wiring harness between the following terminals for an open or short circuit.

― Terminal C (4-pin) to terminal 2H (12-pin)

• Is the wiring harness normal?

Yes

Go to the next step.

Repair or replace the wiring harness between the keyless receiver connector and keyless control module connector, then go to the next step.

• Are the following keyless control module power supply voltages normal?

― Power supply (IG1) (Terminal 2C)

― Power supply (+B) (Terminals 1D and 1E)

― Power supply (ACC) (Terminal 2A)

Yes

Go to the next step.

Inspect for a burnt fuse (ENG10 A, ROOM15 A, P/W 20 A, MIRROR 7.5 A).

Inspect the power supply system wiring harness for an open or short circuit, repair or replace if necessary, then go to the next step.

• Is the following keyless control module ground voltage normal?

― 0 V (Terminal 3N)

Yes

Go to the next step.

Inspect the ground system wiring harness for an open circuit, then go to the next step.

• Inspect the following keyless control module (12-pin, 30-pin) signal voltages with the auxiliary key not in the ignition key cylinder, and the start knob in the LOCK position and not being pressed.

― Keyless switch: 10 V or less (Terminal 3W)

― Start knob (push switch): 1.0 V or less (Terminal 3V)

― Power supply (ACC): 1.0 V or less (Terminal 2A)

― Power supply (IG1): 1.0 V or less (Terminal 2C)

• Are the signal voltages normal?

Yes

Go to the next step.

Inspect the keyless switch.

Inspect the keyless switch system wiring harness for an open or short circuit, then go to the next step.

• Are the following BCM terminal voltages normal?

― When the front door (RH) is open: B+ (Terminal 7I)

― When the front door (RH) is closed: 1.0 V or less (Terminal 7I)

― When the front door (LH) is open: B+ (Terminal 7M)

― When the front door (LH) is closed: 1.0 V or less (Terminal 7M)

― When the rear door (RH) is open: B+ (Terminal 7O)

― When the rear door (RH) is closed: 1.0 V or less (Terminal 7O)

― When the rear door (LH) is open: B+ (Terminal 7G)

― When the rear door (LH) is closed: 1.0 V or less (Terminal 7G)

― When the liftgate is open: 1.0 V or less (Terminal 7S)

― When the liftgate is closed: B+ (Terminal 7S)

Yes

Inspect the wiring harness between BCM terminal 6W and keyless control module terminal 2F.

If there is any open or short circuit, repair or replace the malfunctioning part.

If there is no malfunction, go to the next step.

Inspect the door latch switch.

(See FRONT DOOR LATCH SWITCH INSPECTION.)

(See REAR DOOR LATCH SWITCH INSPECTION [5HB].)

Inspect the door latch switch system wiring harness for an open or short circuit, then go to the next step.

• Is the signal voltage transmitted from the BCM to the door lock actuator normal?

• Does BCM terminal voltage change as follows when locking/unlocking using the transmitter (advanced key)?

― Unlocking: 1.0 V or less→B+→1.0V or less (Terminal 3O)

― Locking (Vehicles with double locking system): 1.0 V or less→B+→1.0 V or less (Terminal 3E)

― Locking (Vehicles without double locking system): 1.0 V or less→B+→1.0 V or less (Terminal 3M)

Yes

Go to the next step.

Inspect the wiring harness between the BCM and the door lock actuator for an open or short circuit.

Inspect the door lock actuator, then go to Step 23.

(See FRONT DOOR LOCK ACTUATOR INSPECTION.)

• Replace the keyless receiver.

• Does the advanced keyless and start system operate normally?

Yes

Troubleshooting completed.

Replace the BCM, then go to the next step.

(See BODY CONTROL MODULE (BCM) REMOVAL/INSTALLATION.)

• Does the advanced keyless and start system operate normally?

Yes

Troubleshooting completed.

Verify the malfunction, then go to Step 1 if it recurs.