ADVANCED KEYLESS ENTRY SYSTEM DOES NOT OPERATE [SECURITY AND LOCKS]

id0903k7012100

Description

• The door locking operation using the door request switch is not possible.

• The liftgate/trunk lid cannot be open using the liftgate/trunk lid opener switch.

Possible cause

• Remote transmitter is in power-saving function

• Battery used for remote transmitter is not effective

― Battery other than CR2025 is used (With remote transmitter type A)

― Battery other than CR2032 is used (With remote transmitter type B)

― Battery is inserted in opposite direction

― Battery voltage is low

• Liftgate/trunk lid opener switch malfunction

• Open circuit in wiring harness between the following terminals:

― Rear body control module (RBCM) terminal 4M and liftgate/trunk lid opener switch terminal C

― LF control unit terminal C and request switch (LF) terminal D

― LF control unit terminal A and request switch (RF) terminal D

― LF control unit terminal E and request switch (liftgate) terminal A

― Start stop unit terminal 1P and door lock link switch (driver's side) terminal D (L.H.D.) / J (R.H.D.)

― Start stop unit terminal 1AF and ground

― Start stop unit terminal 2B and ground

• Short to ground in wiring harness between start stop unit terminal 1P and door lock link switch (driver's side) terminal D (L.H.D.) / J (R.H.D.)

• Connector poor contact or terminal damage

• Customer's mis-operation or misunderstanding

Diagnostic Procedure

Step

Inspection

Action

1

VERIFY THAT OPERATION INDICATOR LIGHT TURNS ON WHEN REMOTE TRANSMITTER BUTTON IS USED

•  Does the operation indicator light turn on?

Yes

Go to Step 4.

No

Go to the next step.

2

VERIFY IF PROBLEM IS DUE TO REMOTE TRANSMITTER POWER SAVING FUNCTION

•  Turn off the power saving function.
(See SECURITY AND LOCKS PERSONALIZATION FEATURES SETTING PROCEDURE.)

•  Does the operation indicator light turn on?

Yes

Perform the repair completion verification.

No

Go to the next step.

3

VERIFY BATTERY USED FOR REMOTE TRANSMITTER

•  Is any of the following conditions met?

―  Battery other than CR2025 is used (With remote transmitter type A)

―  Battery other than CR2032 is used (With remote transmitter type B)

―  Battery is inserted in opposite direction

―  Battery voltage is low

Yes

Replace the remote transmitter battery and perform the repair completion verification.

(See REMOTE TRANSMITTER DISASSEMBLY/ASSEMBLY.)

No

Replace the remote transmitter and perform the repair completion verification.

4

DETERMINE IF MALFUNCTION CAUSE IS DOOR LOCK

•  Refer to "door lock does not operate" symptom troubleshooting and perform the inspection.
(See DOOR LOCK DOES NOT OPERATE [SECURITY AND LOCKS].)

•  Is the advanced keyless entry system operating normally?

Yes

Troubleshooting completed. (Explain the contents of the servicing to the customer.)

No

Go to the next step.

5

VERIFY IF MALFUNCTION CAUSE IS OPERATION OTHER THAN OPERATION PERMISSION CONDITION

•  Verify the advanced keyless operation by operating each request switch and the liftgate/trunk lid opener switch with all the following conditions met.

―  All doors and liftgate/trunk lid closed

―  Ignition switched off (LOCK)

―  Remote transmitter is within reception area (80 cm radius from driver's door, front passenger's door, and liftgate/trunk lid)

•  Is the advanced keyless entry system operating normally?

Yes

System is normal. (Explain to customer about operation range of advanced keyless entry system)

No

Go to the next step.

6

VERIFY MALFUNCTION SYMPTOM

•  Does the liftgate/trunk lid open using the liftgate/trunk lid opener switch operation?

Yes

Go to Step 9.

No

Go to the next step.

7

DETERMINE IF MALFUNCTION CAUSE IS LIFTGATE/TRUNK LID OPENER SWITCH

•  Measure the voltage at rear body control module (RBCM) terminal 4M.

•  Is the voltage normal?

Specification

Liftgate/trunk lid opener switch pressed: 1.0 or less

Except above: 4.5 V

Yes

Go to Step 14.

No

Go to the next step.

8

INSPECT IF MALFUNCTION CAUSE IS OPEN CIRCUIT IN WIRING HARNESS BETWEEN REAR BODY CONTROL MODULE (RBCM) AND LIFTGATE/TRUNK LID OPENER SWITCH

•  Disconnect the negative battery cable.
(See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.)

•  Disconnect the rear body control module (RBCM) and liftgate/trunk lid opener switch connector.

•  Inspect for continuity between the following terminals (vehicle wiring harness).

―  Liftgate/trunk lid opener switch terminal C and rear body control module (RBCM) terminal 4M

•  Is there continuity?

Yes

•  Inspect the liftgate/trunk lid opener switch. If there is any malfunction, replace it.
(See LIFTGATE OPENER SWITCH INSPECTION.)

(See TRUNK LID OPENER SWITCH INSPECTION.)

•  If the liftgate/trunk lid opener switch inspection is normal, inspect or repair the following:

―  Liftgate latch and actuator
(See LIFTGATE LATCH AND LOCK ACTUATOR INSPECTION.)

―  Trunk lid latch and release actuator
(See TRUNK LID LATCH AND RELEASE ACTUATOR INSPECTION.)

•  After repair procedure, go to Step 14.

No

•  Repair or replace the wiring harness for an open circuit.

•  After repair procedure, go to Step 14.

9

VERIFY MALFUNCTION SYMPTOM

•  Connect the negative battery cable.
(See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.)

•  Verify the lock/unlock operation for all doors and liftgate/trunk lid using the request switch operation.

•  Is door locked/unlocked?

Yes

Go to Step 14.

No

Go to the next step.

10

INSPECT IF MALFUNCTION CAUSE IS OPEN CIRCUIT IN WIRING HARNESS BETWEEN START STOP UNIT AND DOOR LOCK LINK SWITCH (DRIVER-SIDE)

•  Disconnect the negative battery cable.
(See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.)

•  Disconnect the start stop unit and the front door latch and lock actuator (driver's side) connector.

•  Inspect for continuity between the following terminals (vehicle wiring harness).

―  Start stop unit terminal 1P and front door lock link switch terminal D (L.H.D.) / J (R.H.D.)

•  Is there continuity?

Yes

Go to the next step.

No

•  Repair or replace the wiring harness for an open circuit.

•  After repair procedure, go to Step 14.

11

INSPECT IF MALFUNCTION CAUSE IS SHORT TO GROUND IN WIRING HARNESS BETWEEN START STOP UNIT AND DOOR LOCK LINK SWITCH (DRIVER-SIDE)

•  Verify that the start stop unit connector is disconnected.

•  Inspect for continuity between the following wiring harness terminals (vehicle wiring harness side) and body ground.

―  Start stop unit terminal 1P and ground

•  Is there continuity?

Yes

Go to the next step.

No

•  Repair or replace the wiring harness for an open circuit.

•  After repair procedure, go to Step 14.

12

INSPECT IF MALFUNCTION CAUSE IS OPEN CIRCUIT IN WIRING HARNESS BETWEEN START STOP UNIT AND GROUND

•  Verify that the start stop unit connector is disconnected.

•  Inspect for continuity between the following terminals (vehicle wiring harness).

―  Start stop unit terminal 1AF and ground

―  Start stop unit terminal 2B and ground

•  Is there continuity?

Yes

Go to the next step.

No

•  Repair or replace the wiring harness for an open circuit.

•  After repair, go to Step 14.

13

INSPECT IF MALFUNCTION CAUSE IS OPEN CIRCUIT IN WIRING HARNESS BETWEEN REQUEST SWITCH AND LF CONTROL UNIT

•  Disconnect the LF control unit and request switch connector.

•  Inspect for continuity between the following terminals (vehicle wiring harness).

―  LF control unit terminal C and request switch (LF) terminal D

―  LF control unit terminal A and request switch (RF) terminal D

―  LF control unit terminal E and request switch (liftgate) terminal A

•  Is there continuity?

Yes

Go to the next step.

No

•  Repair or replace the wiring harness for an open circuit.

•  After repair, go to the next step.

14

VERIFY IF MALFUNCTION CAUSE WAS CORRECTED

•  Does the advanced keyless entry system operate normally?

Yes

Troubleshooting completed. (Explain the contents of the servicing to the customer.)

No

If the malfunction has not been resolved, repeat the inspection from Step 1.

Step	Inspection		Action
1	VERIFY THAT OPERATION INDICATOR LIGHT TURNS ON WHEN REMOTE TRANSMITTER BUTTON IS USED • Does the operation indicator light turn on?	Yes	Go to Step 4.
1		No	Go to the next step.
2	VERIFY IF PROBLEM IS DUE TO REMOTE TRANSMITTER POWER SAVING FUNCTION • Turn off the power saving function. (See SECURITY AND LOCKS PERSONALIZATION FEATURES SETTING PROCEDURE.) • Does the operation indicator light turn on?	Yes	Perform the repair completion verification.
2		No	Go to the next step.
3	VERIFY BATTERY USED FOR REMOTE TRANSMITTER • Is any of the following conditions met? ― Battery other than CR2025 is used (With remote transmitter type A) ― Battery other than CR2032 is used (With remote transmitter type B) ― Battery is inserted in opposite direction ― Battery voltage is low	Yes	Replace the remote transmitter battery and perform the repair completion verification. (See REMOTE TRANSMITTER DISASSEMBLY/ASSEMBLY.)
3		No	Replace the remote transmitter and perform the repair completion verification.
4	DETERMINE IF MALFUNCTION CAUSE IS DOOR LOCK • Refer to "door lock does not operate" symptom troubleshooting and perform the inspection. (See DOOR LOCK DOES NOT OPERATE [SECURITY AND LOCKS].) • Is the advanced keyless entry system operating normally?	Yes	Troubleshooting completed. (Explain the contents of the servicing to the customer.)
4		No	Go to the next step.
5	VERIFY IF MALFUNCTION CAUSE IS OPERATION OTHER THAN OPERATION PERMISSION CONDITION • Verify the advanced keyless operation by operating each request switch and the liftgate/trunk lid opener switch with all the following conditions met. ― All doors and liftgate/trunk lid closed ― Ignition switched off (LOCK) ― Remote transmitter is within reception area (80 cm radius from driver's door, front passenger's door, and liftgate/trunk lid) • Is the advanced keyless entry system operating normally?	Yes	System is normal. (Explain to customer about operation range of advanced keyless entry system)
5		No	Go to the next step.
6	VERIFY MALFUNCTION SYMPTOM • Does the liftgate/trunk lid open using the liftgate/trunk lid opener switch operation?	Yes	Go to Step 9.
6		No	Go to the next step.
7	DETERMINE IF MALFUNCTION CAUSE IS LIFTGATE/TRUNK LID OPENER SWITCH • Measure the voltage at rear body control module (RBCM) terminal 4M. • Is the voltage normal? Specification Liftgate/trunk lid opener switch pressed: 1.0 or less Except above: 4.5 V	Yes	Go to Step 14.
7		No	Go to the next step.
8	INSPECT IF MALFUNCTION CAUSE IS OPEN CIRCUIT IN WIRING HARNESS BETWEEN REAR BODY CONTROL MODULE (RBCM) AND LIFTGATE/TRUNK LID OPENER SWITCH • Disconnect the negative battery cable. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.) • Disconnect the rear body control module (RBCM) and liftgate/trunk lid opener switch connector. • Inspect for continuity between the following terminals (vehicle wiring harness). ― Liftgate/trunk lid opener switch terminal C and rear body control module (RBCM) terminal 4M • Is there continuity?	Yes	• Inspect the liftgate/trunk lid opener switch. If there is any malfunction, replace it. (See LIFTGATE OPENER SWITCH INSPECTION.) (See TRUNK LID OPENER SWITCH INSPECTION.) • If the liftgate/trunk lid opener switch inspection is normal, inspect or repair the following: ― Liftgate latch and actuator (See LIFTGATE LATCH AND LOCK ACTUATOR INSPECTION.) ― Trunk lid latch and release actuator (See TRUNK LID LATCH AND RELEASE ACTUATOR INSPECTION.) • After repair procedure, go to Step 14.
8		No	• Repair or replace the wiring harness for an open circuit. • After repair procedure, go to Step 14.
9	VERIFY MALFUNCTION SYMPTOM • Connect the negative battery cable. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.) • Verify the lock/unlock operation for all doors and liftgate/trunk lid using the request switch operation. • Is door locked/unlocked?	Yes	Go to Step 14.
9		No	Go to the next step.
10	INSPECT IF MALFUNCTION CAUSE IS OPEN CIRCUIT IN WIRING HARNESS BETWEEN START STOP UNIT AND DOOR LOCK LINK SWITCH (DRIVER-SIDE) • Disconnect the negative battery cable. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.) • Disconnect the start stop unit and the front door latch and lock actuator (driver's side) connector. • Inspect for continuity between the following terminals (vehicle wiring harness). ― Start stop unit terminal 1P and front door lock link switch terminal D (L.H.D.) / J (R.H.D.) • Is there continuity?	Yes	Go to the next step.
10		No	• Repair or replace the wiring harness for an open circuit. • After repair procedure, go to Step 14.
11	INSPECT IF MALFUNCTION CAUSE IS SHORT TO GROUND IN WIRING HARNESS BETWEEN START STOP UNIT AND DOOR LOCK LINK SWITCH (DRIVER-SIDE) • Verify that the start stop unit connector is disconnected. • Inspect for continuity between the following wiring harness terminals (vehicle wiring harness side) and body ground. ― Start stop unit terminal 1P and ground • Is there continuity?	Yes	Go to the next step.
11		No	• Repair or replace the wiring harness for an open circuit. • After repair procedure, go to Step 14.
12	INSPECT IF MALFUNCTION CAUSE IS OPEN CIRCUIT IN WIRING HARNESS BETWEEN START STOP UNIT AND GROUND • Verify that the start stop unit connector is disconnected. • Inspect for continuity between the following terminals (vehicle wiring harness). ― Start stop unit terminal 1AF and ground ― Start stop unit terminal 2B and ground • Is there continuity?	Yes	Go to the next step.
12		No	• Repair or replace the wiring harness for an open circuit. • After repair, go to Step 14.
13	INSPECT IF MALFUNCTION CAUSE IS OPEN CIRCUIT IN WIRING HARNESS BETWEEN REQUEST SWITCH AND LF CONTROL UNIT • Disconnect the LF control unit and request switch connector. • Inspect for continuity between the following terminals (vehicle wiring harness). ― LF control unit terminal C and request switch (LF) terminal D ― LF control unit terminal A and request switch (RF) terminal D ― LF control unit terminal E and request switch (liftgate) terminal A • Is there continuity?	Yes	Go to the next step.
13		No	• Repair or replace the wiring harness for an open circuit. • After repair, go to the next step.
14	VERIFY IF MALFUNCTION CAUSE WAS CORRECTED • Does the advanced keyless entry system operate normally?	Yes	Troubleshooting completed. (Explain the contents of the servicing to the customer.)
14		No	If the malfunction has not been resolved, repeat the inspection from Step 1.