DESCRIPTION
When the entry door lock and unlock functions and wireless door lock and unlock functions do not operate, radio wave interference, or a malfunction in the key or signal circuit between the door control receiver assembly and certification ECU (smart key ECU assembly) is suspected. The signal circuit is shared by the entry function and wireless door lock function.
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 ELECTRICAL KEY TRANSMITTER |
(a) Check if another registered key is available.
Result |
Proceed to |
---|---|
Another registered key is not available. |
A |
Another registered key is available. |
B |
B |
GO TO STEP 4 |
|
3. |
REGISTER ELECTRICAL KEY TRANSMITTER |
(a) Register a new key (See page ).
|
4. |
CHECK ELECTRICAL KEY TRANSMITTER (OPERATION) |
(a) Using the key registered in the previous step or another registered key, check that the entry function operates normally (See page ).
OK:
Entry function operates normally.
NG |
GO TO STEP 7 |
|
5. |
CHECK ELECTRICAL KEY TRANSMITTER (LED) |
(a) Check that the transmitter LED illuminates each time when the switch is pushed 3 times.
Result |
Proceed to |
---|---|
Transmitter LED does not illuminate at all when switch is pushed 3 times. |
A |
Transmitter LED illuminates each time when switch is pushed 3 times. |
B |
Transmitter LED does not illuminate the second or third time. |
C |
HINT:
If the transmitter LED does not illuminate the second or third time, replace the transmitter battery as it is depleted.
B |
REPLACE ELECTRICAL KEY TRANSMITTER |
C |
REPLACE TRANSMITTER BATTERY |
|
6. |
INSPECT TRANSMITTER BATTERY (VOLTAGE) |
(a) Remove the battery from the key that does not operate. Attach a lead wire (0.6 mm (0.0236 in.) or less in diameter including wire sheath) with tape or equivalent to the negative (-) terminal (See page ). NOTICE: Do not wrap the wire around the terminal, wedge it between the terminals, or solder it. A terminal may be deformed or damaged, and the battery will not be able to be installed correctly. |
|
(b) Carefully pull the lead wire out from the position shown in the illustration and install the previously removed transmitter battery.
(c) Using an oscilloscope, check the transmitter battery voltage waveform.
HINT:
When measuring the battery voltage, while operating the lock switch of a door outside handle assembly, bring the key within the entry operating range to perform the measurement. For the entry operating range, refer to System Description (See page ).
Standard Voltage:
Item |
Content |
---|---|
Tester Connection |
Battery positive (+) - Battery negative (-) |
Tool Setting |
0.5 V/DIV., 100 ms/DIV. |
Condition |
Engine switch off, all doors closed and lock switch pushed |
Specified Condition |
2.2 to 3.2 V (Refer to the waveform) |
OK |
REPLACE ELECTRICAL KEY TRANSMITTER |
NG |
REPLACE TRANSMITTER BATTERY |
7. |
CHECK WAVE ENVIRONMENT |
(a) Bring the key near the door control receiver, and check that the wireless function.
HINT:
OK:
Wireless function operates normally.
OK |
AFFECTED BY WAVE INTERFERENCE |
|
8. |
CHECK POWER SOURCE |
(a) Check if functions other than the entry function operate when the engine switch is off.
Result |
Proceed to |
---|---|
Other functions do not operate. |
A |
Other functions operate. |
B |
HINT:
Perform this check with using functions that do not require the engine switch to be on (ACC or IG) in order to operate.
B |
GO TO SMART KEY SYSTEM (for Start Function) (Proceed to How to Proceed with Troubleshooting) |
|
9. |
INSPECT FUSES (EFI NO. 1, ECU-B) |
(a) Remove the EFI NO. 1 and ECU-B fuses to the engine room relay block and junction block.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
EFI NO. 1 fuse |
Always |
Below 1 Ω |
ECU-B fuse |
Always |
Below 1 Ω |
NG |
REPLACE FUSE (EFI NO. 1, ECU-B) |
|
10. |
CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU - BATTERY AND BODY GROUND) |
(a) Install the EFI NO. 1 and ECU-B fuses to the engine room relay block and junction block.
(b) Disconnect the certification ECU (smart key ECU assembly) connector. |
|
(c) Measure the voltage and resistance according to the value(s) in the table below.
Standard Voltage:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
D25-1 (+B) - Body ground |
Always |
11 to 14 V |
D25-17 (CUTB) - Body ground |
Always |
11 to 14 V |
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
D25-15 (E) - Body ground |
Always |
Below 1 Ω |
*1 |
Front view of wire harness connector (to Certification ECU (Smart Key ECU Assembly)) |
NG |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
11. |
CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU - DOOR CONTROL RECEIVER) |
(a) Disconnect the door control receiver assembly connector. |
|
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
D26-5 (RC0) - M16-4 (+5) |
Always |
Below 1 Ω |
D26-15 (RDA) - M16-5 (DATA) |
Always |
Below 1 Ω |
D26-16 (RSSI) - M16-2 (RSSI) |
Always |
Below 1 Ω |
D26-5 (RC0) - Body ground |
Always |
10 kΩ or higher |
D26-15 (RDA) - Body ground |
Always |
10 kΩ or higher |
D26-16 (RSSI) - Body ground |
Always |
10 kΩ or higher |
M16-4 (+5) - Body ground |
Always |
10 kΩ or higher |
M16-5 (DATA) - Body ground |
Always |
10 kΩ or higher |
M16-2 (RSSI) - 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 Door Control Receiver Assembly) |
NG |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
12. |
CHECK HARNESS AND CONNECTOR (DOOR CONTROL RECEIVER - BODY GROUND) |
(a) Measure the resistance according to the value(s) in the table below. Standard Resistance:
|
|
NG |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
13. |
INSPECT DOOR CONTROL RECEIVER ASSEMBLY (POWER SOURCE) |
(a) Reconnect the certification ECU (smart key ECU assembly) connector.
(b) Reconnect the door control receiver assembly connector.
(c) Measure the voltage according to the value(s) in the table below. Standard Voltage:
|
|
NG |
REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) |
|
14. |
INSPECT DOOR CONTROL RECEIVER ASSEMBLY (DOOR CONTROL RECEIVER SIGNAL OUTPUT) |
(a) Measure the voltage according to the value(s) in the table below. Standard Voltage:
|
|
OK |
REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) |
NG |
REPLACE DOOR CONTROL RECEIVER ASSEMBLY |
Ignition Coil "A" Primary / Secondary Circuit (P0351-P0354)
DESCRIPTION
HINT:
These DTCs indicate malfunctions relating to the primary circuit.
If DTC P0351 is output, check the No. 1 ignition coil circuit.
If DTC P0352 is output, check the No. 2 ignition coil circuit.
If DTC P0353 is output, c ...
Installation
INSTALLATION
CAUTION / NOTICE / HINT
CAUTION:
The nuts must not be reused.
Make sure that the front seat frame assembly with adjuster is not deformed.
If it is, replace it with a new one.
PROCEDURE
1. INSTALL FRONT SEAT SIDE AIRBAG A ...
Reassembly
REASSEMBLY
PROCEDURE
1. INSTALL FRONT BUMPER SIDE RETAINER LH
(a) Engage the claw and install the front bumper side retainer LH.
Text in Illustration
*1
Bolt
*2
S ...