NO.2 ADVANCED KEYLESS ENTRY FUNCTION INOPERATIVE [ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM]

id0903z3901600

2
Advanced keyless entry function inoperative
DESCRIPTION
•  Cannot door lock with door lock request switch
•  Cannot door unlock with door unlock touch sensor
•  Cannot liftgate/trunk lid open with liftgate/trunk lid opener switch
POSSIBLE CAUSE
•  Malfunction in advanced key battery or advanced key
•  Malfunction in the keyless control module
•  Malfunction in the door lock request switch
•  Open or short circuit in wiring between lock request switch and keyless control module
•  Malfunction in the door unlock touch sensor
•  Open or short circuit in wiring between unlock touch sensor and keyless control module
•  Malfunction in the keyless receiver
•  Open or short circuit in wiring between keyless receiver and keyless control module
•  Malfunction in the keyless antenna
•  Malfunction in the lock link switch
•  Open circuit in wiring between lock link switch and keyless control module
•  Malfunction in door latch switch or trunk lid/liftgate latch switch
•  Open or short circuit in wiring between trunk lid/liftgate opener switch and BCM
•  Open or short circuit in wiring harness between door latch switch and BCM
•  Malfunction in liftgate/trunk lid opener switch
•  Open or short circuit in wiring harness between liftgate/trunk lid opener switch and BCM
•  Keyless antenna (exterior) malfunction
•  Open or short circuit in wiring harness between keyless antenna (exterior) and keyless control module
•  Malfunction in door lock actuator
•  Open or short circuit in wiring between door lock actuator and BCM
•  Malfunction in the BCM
•  Poor connection of connector, terminal damage
•  Wrong usage

Diagnostic procedure

STEP

INSPECTION

ACTION
1
•  Retrieve the advanced keyless entry and push button start system DTC using the M-MDS.
•  Are there DTC displayed?
Yes
Go to the applicable DTC troubleshooting procedures.
(See DTC TABLE [ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM].)
No
Go to the next step.
2
•  Did the customer attempt to operate each front doors and liftgate/trunk lid using the touch sensor?
Yes
Go to the next step.
No
•  Inspect the advanced keyless system operations using the request switch.
•  If the advanced keyless system is inoperative, then go to the next step.
3
•  Prepare the followings:
―  All doors and trunk lid/liftgate closed
―  Switch the ignition to off. (without ACC and IG ON position)
―  Make sure that the advanced key is within the advanced keyless system operative area (within 80 cm {2.6 ft} from front door)
―  The auxiliary key is inserted in the ignition switch.
•  Does the advanced keyless system operate properly?
Yes
The system is normal.
Explain the advanced keyless system operation.
No
Go to the next step.
4
•  Confirm the problem using another electrical key.
•   Is the same problem remained?
Yes
Go to Step 6.
No
Go to the next step.
5
•  Lock and unlock operation using advanced key button that has problem.
•  Are the lock and unlock operations properly?
Yes
Replace the electrical key.
(internal malfunction)
No
Replace the electrical key battery, then go to Step 29.
6
•  Verify that the trouble occurred condition.
•  Is the problem occurred lock operation only?
Yes
Go to Step 8
No
Go to the next step.
7
•  Verify that the trouble occurred condition.
•  Is the problem occurred unlock operation only?
Yes
Go to Step 15.
No
Go to Step 21.
8
•  Monitor the following keyless control module PIDs using the M-MDS.
―  REQ_SW_R (RF lock request switch)
―  REQ_SW_L (LF lock request switch)
•  Are PIDs indicated properly?
Specification
Switch pushed: ON
Other: OFF
Yes
Go to the next step.(WGN)
Go to Step 13.(5HB, 4SD)
No
Go to Step 10.
9
•  Measure the voltage at the keyless control module terminal 3D.
•  Is the voltage normal?
Specification
Liftgate request switch is pushed: 1.0 V or less
Others: B+
Yes
Go to Step 13.
No
Go to the next step.
10
•  Switch the ignition to off.
•  Disconnect the keyless control module (30-pin) door handle (incorrect PID value at Step 8 and request switch (liftgate)(incorrect voltage at Step 9) connectors.
•  Verify continuity between suspect door handle harness-side connector terminal D and GND.
•  Verify continuity between request switch (liftgate) terminal B and GND.
•  Is there continuity?
Yes
•  Repair or replace wiring harness for short to GND circuit.
•  Then go to Step 29.
No
Go to the next step.
11
•  Keyless control module and handle switch and request switch (liftgate) disconnected.
•  Verify continuity between door handle connector terminal D and following keyless control module terminal at each harness-side connector.
―  Terminal 3U for right-side door handle
―  Terminal 3X for left-side door handle
•  Verify continuity between request switch (liftgate) terminal B and keyless control module terminal 3D.(WGN)
•  Is there continuity?
Yes
Go to the next step.
No
•  Repair or replace for open circuit.
•  Then go to Step 29.
12
•  Handle switch disconnected.
•  Verify continuity between suspect door handle harness-side connector terminal A and GND.
•  Is there continuity?
Yes
•  Replace suspect door handle.
•  Then go to Step 29.
No
•  Repair or replace wiring harness for open circuit.
•  Re-tighten the ground wire as necessary.
•  Then go to Step 29.
13
•  Monitor the following BCM PIDs using the M-MDS.
―  TR/LG—SW (Liftgate latch switch)
―  DRSW—RR (Right rear door latch switch)
―  DRSW—LR (Left rear door latch switch)
―  DRSW—P (Passenger’s door latch switch)
―  DRSW—D (Driver’s door latch switch)
•  Are PIDs indicated properly?
Yes
•  Go to the next step.
No
•  Inspect suspect door latch switch and wiring harness.
•  Repair or replace as necessary.
•  Then go to Step 29.
14
•  Measure the voltage at the BCM terminals 7I and 7M while the lock door using the lock request switch.
―  Lock all doors with the advanced key: 1.0 V or less→B+→1.0 V or less (terminal 7I)
―  Double lock all doors with the advanced key: 1.0 V or less→B+→1.0 V or less (terminal 7M)
•  Is the voltage as above?
Yes
•  Inspect and repair the wiring harness between the BCM and the door lock actuator.
•  Inspect for door lock actuator.
•  Then go to Step 29.
No
•  Replace the BCM.
•  Then go to Step 29.
15
•  Measure the voltage at the BCM terminals 7K and 7M while the unlock door using the unlock request switch.
―  Unlock all doors and liftgate with the advanced key:1.0 V or less → B+→ 1.0 V or less
•  Is the voltage as above?
Yes
•  Inspect and repair the wiring harness between the BCM and the door lock actuator.
•  Inspect for door lock actuator.
•  Then go to Step 29.
No
Go to the next Step.
16
•  Monitor the following keyless control module PIDs using the M-MDS.
―  LOCK_SW_D (door lock link switch)
•  Are PIDs indicated properly?
Specification
Driver's door: LOCK: Lock
Driver's door: UNLOCK: Unlock
Yes
Go to the next Step.
No
Inspect the door lock link switch, replace it as necessary.
•  Door lock link switch
•  Verify continuity between door lock link switch connector terminal J and keyless control module terminal 3P at each harness-side connector
17
•  Switch the ignition to off.
•  Disconnect the door handle connector of the malfunctioning door from the keyless control module (30-pin) connector.
•  Verify continuity between suspect door handle harness-side connector terminal C and GND.
•  Is there continuity?
Yes
•  Repair or replace wiring harness for short to GND circuit.
•  Then go to Step 29.
No
Go to the next step.
18
•  Keyless control module and handle switch disconnected.
•  Verify continuity between door handle connector terminal C and following keyless control module terminal at each harness-side connector.
―  Terminal 3H for right-side door handle
―  Terminal 3Q for left-side door handle
•  Is there continuity?
Yes
Go to the next step.
No
•  Repair or replace for open circuit.
•  Then go to Step 29.
19
•  Handle switch disconnected.
•  Verify continuity between suspect door handle harness-side connector terminal F and GND.
•  Is there continuity?
Yes
Go to the next step.
No
•  Repair or replace wiring harness for open circuit.
•  Re-tighten the ground wire as necessary.
•  Then go to Step 29.
20
•  Switch the outer handle of the malfunctioning door with the outer handle of the door on the opposite side (or a normal outer handle): Connecting only the connectors is sufficient.
•  Verify the malfunction symptom.
•  Does the malfunction recur on the door on the opposite side? (Is the source of the malfunction determined?)
Yes
•  Replace suspect door handle.
•  Then go to Step 29.
No
•  Replace the BCM.
•  Then go to Step 29.
21
•  Verify that the liftgate/trunk lid open function.
•  Is the liftgate/trunk lid open with liftgate/trunk lid opener switch?
Yes
Go to Step 25.
No
Go to the next step.
22
•  Measure the voltage at the keyless control module terminal 3G.
•  Is the voltage normal?
Specification
Liftgate/trunk lid opener switch is pushed: 3.0 V
Others: 4.7 V
Yes
Go to Step 27.
No
Go to the next step.
23
•  Switch the ignition to off.
•  Disconnect the keyless control module (30-pin) and liftgate/trunk lid opener switch connectors.
•  Verify continuity between liftgate/trunk lid opener switch harness-side connector terminal A and GND.
•  Is there continuity?
Yes
•  Repair or replace wiring harness for short to GND circuit.
•  Then go to Step 29.
No
Go to the next step.
24
•  Keyless control module and opener switch disconnected.
•  Verify continuity between liftgate/trunk lid opener switch terminal A and following keyless control module terminal 3G at each harness-side connector.
•  Is there continuity?
Yes
•  Inspect the liftgate/trunk lid opener switch, replace it as necessary.
―  If normal, inspect following parts and repair or replace as necessary.
•  Liftgate latch and actuator
•  Trunk lid latch and actuator
•  Open or short circuit in wiring harness between liftgate/trunk lid latch and BCM.
•  Open or short circuit in wiring harness between liftgate/trunk lid actuator and BCM.
•  Then go to Step 29.
No
•  Repair or replace for open circuit.
•  Then go to Step 29.
25
•  Switch the ignition to off.
•  Disconnect the keyless control module and suspect exterior keyless antenna connector.
•  Verify continuity between following suspect keyless antenna harness-side connector terminal and GND.
―  Door handle terminal B (exterior LH/RH)
―  Door handle terminal E (exterior LH/RH)
―  Keyless antenna (exterior rear) terminal C
―  Keyless antenna (exterior rear) terminal D
•  Is there continuity?
Yes
Repair or replace for short to GND, then go to Step 29.
No
Go to the next step.
26
•  Replace the suspect exterior keyless antenna to other keyless antenna (interior rear, other side door handle) temporarily.
―  If the symptom is occurring while the front outer handle switch operates, replace to the other side front outer handle with connector is connected.
―  If the symptom is occurring while the liftgate request switch operates, replace to the keyless antenna (interior rear) with connector is connected.
•  Verify the malfunction symptom.
•  Is the symptom solved?
Yes
Replace the suspect exterior keyless antenna, then go to Step 29.
(See FRONT OUTER HANDLE REMOVAL/INSTALLATION.)
(See KEYLESS ANTENNA REMOVAL/INSTALLATION [ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM].)
No
Go to the next step.
27
•  Switch the ignition to off.
•  Disconnect the BCM (16-pin) and keyless control module (12-pin) connectors.
•  Verify continuity between keyless control module harness-side connector terminal 2F and GND.
•  Is there continuity?
Yes
•  Repair or replace wiring harness for short to GND circuit.
•  Then go to Step 29.
No
Go to the next step.
28
•  BCM (16-pin) and keyless control module (12-pin) connectors disconnected.
•  Verify continuity between BCM connector terminal 6J and keyless control module terminal 2F at each harness-side connector.
•  Is there continuity?
Yes
•  Replace the keyless control module.
•  Then go to the next step.
No
•  Repair or replace wiring harness for open circuit.
•  Then go to the next step.
29
•  Does the keyless entry system operate properly?
Yes
Troubleshooting completed. Explain repairs to the customers.
No
Re-inspect the malfunction symptoms, then repeat form Step 1 if malfunction recurs.