DESCRIPTION
When the entry lock and unlock functions do not operate only for the driver door, an error in output request codes from the driver door or malfunction in the front door outside handle assembly is suspected. If the entry functions for the other doors operate normally, then the communication circuit between the key and door control receiver assembly is functioning normally. In this case, radio wave interference or a malfunction in the request code sending circuit (from the certification ECU (smart key ECU assembly) to the front door outside handle assembly (for driver side)) is suspected.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
PROCEDURE
1. |
CHECK POWER DOOR LOCK OPERATION |
(a) When the door control switch on the master switch assembly is operated, check
that the doors unlock and lock according to switch operation (See page
).
OK:
Door locks operate normally.
NG | ![]() |
GO TO POWER DOOR LOCK CONTROL SYSTEM (Proceed to Problem Symptoms Table) |
|
2. |
CHECK WAVE ENVIRONMENT |
(a) Bring the key near the front door outside handle assembly (for driver side), and perform a driver door entry lock and unlock operation check. NOTICE: If the key is brought within 0.2 m (0.656 ft.) of the door outside handle assembly, communication is not possible. HINT:
OK: Entry functions operate normally. |
|
OK | ![]() |
AFFECTED BY WAVE INTERFERENCE |
|
3. |
CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU - FRONT DOOR OUTSIDE HANDLE) |
(a) Disconnect the certification ECU (smart key ECU assembly) connector.
(b) Disconnect the front door outside handle assembly (for driver side) connector. |
|
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
D25-3 (CLG1) - z3-6 (ANT1) |
Always |
Below 1 Ω |
D25-4 (CG1B) - z3-3 (ANT2) |
Always |
Below 1 Ω |
D25-32 (POS1) - z3-5 (B) |
Always |
Below 1 Ω |
D25-3 (CLG1) - Body ground |
Always |
10 kΩ or higher |
D25-4 (CG1B) - Body ground |
Always |
10 kΩ or higher |
D25-32 (POS1) - Body ground |
Always |
10 kΩ or higher |
z3-6 (ANT1) - Body ground |
Always |
10 kΩ or higher |
z3-3 (ANT2) - Body ground |
Always |
10 kΩ or higher |
z3-5 (B) - Body ground |
Always |
10 kΩ or higher |
*1 |
Front view of wire harness connector (to Certification ECU (Smart Key ECU Assembly)) |
*2 |
Front view of wire harness connector (to Front Door Outside Handle Assembly (for Driver Side)) |
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
4. |
CHECK HARNESS AND CONNECTOR (FRONT DOOR OUTSIDE HANDLE - BODY GROUND) |
(a) Measure the resistance according to the value(s) in the table below. Standard Resistance:
|
|
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
5. |
INSPECT FRONT DOOR OUTSIDE HANDLE ASSEMBLY (DOOR OSCILLATOR, LOCK/UNLOCK SENSOR SIGNAL INPUT) |
(a) Reconnect the certification ECU (smart key ECU assembly) connector.
(b) Measure the voltage and check for pulses according to the value(s) in the table below. Standard:
|
|
NG | ![]() |
REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) |
|
6. |
REPLACE FRONT DOOR OUTSIDE HANDLE ASSEMBLY (for Driver Side) |
(a) Replace the front door outside handle assembly (for driver side) (See page
)
|
7. |
CHECK FRONT DOOR OUTSIDE HANDLE ASSEMBLY (for Driver Side) |
(a) Check that the entry functions operate normally (See page
).
OK:
Entry functions operate normally.
OK | ![]() |
END (FRONT DOOR OUTSIDE HANDLE ASSEMBLY WAS DEFECTIVE) |
NG | ![]() |
REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) |
ECU Power Source Circuit
DESCRIPTION
When the ignition switch is turned to ON, voltage from the ECM's MREL terminal
is applied to the EFI MAIN relay. This causes the contacts of the EFI MAIN relay
to close, which supplies power to terminal +B of the TCM.
WIRING DIAGRAM
PR ...
Ultrasonic Sensor(for Front Side)
Components
COMPONENTS
ILLUSTRATION
Removal
REMOVAL
PROCEDURE
1. REMOVE FRONT BUMPER ASSEMBLY
(See page )
2. REMOVE NO. 1 ULTRASONIC SENSOR
(a) Disengage the 2 claws to remove the No. 1 ultrasonic sensor.
HINT:
Use the same proc ...
Inspection
INSPECTION
PROCEDURE
1. INSPECT THERMOSTAT
HINT:
The valve opening temperature is inscribed on the thermostat.
(a) Immerse the thermostat in water, and then gradually heat the water.
(b) Check t ...