CAUTION / NOTICE / HINT
HINT:
*: Use the Techstream.
PROCEDURE
1. |
VEHICLE BROUGHT TO WORKSHOP |
|
2. |
CUSTOMER PROBLEM ANALYSIS |
(a) Refer to the How to Troubleshoot ECU Controlled Systems in Introduction section.
Click here
|
3. |
INSPECT BATTERY VOLTAGE |
(a) Measure the battery voltage.
Standard Voltage:
11 to 14 V
HINT:
If the voltage is below 11 V, recharge or replace the battery before proceeding to the next step.
|
4. |
CHECK CAN COMMUNICATION SYSTEM* |
(a) Using the Techstream, check if the CAN communication system is functioning normally.
HINT:
Click here
Result |
Proceed to |
---|---|
CAN communication system DTCs are not output. |
A |
CAN communication system DTCs are output. |
B |
B | ![]() |
GO TO CAN COMMUNICATION SYSTEM |
|
5. |
CHECK AND CLEAR DTCS AND FREEZE FRAME DATA* |
(a) Refer to DTC Check/Clear.
Click here
|
6. |
SELECT CHECK MODE DIAGNOSIS* |
(a) Refer to Check Mode Procedure.
Click here
|
7. |
CHECK FOR DTC* |
(a) Proceed to DTC Check/Clear.
Click here
Result |
Proceed to |
---|---|
DTCs are not output. |
A |
DTCs are output. |
B |
B | ![]() |
GO TO STEP 12 |
|
8. |
SYMPTOM SIMULATION |
(a) Refer to Symptom Simulation.
Click here
|
9. |
COMPONENT INSPECTION |
|
10. |
REPAIR OR REPLACE |
|
11. |
CONFIRMATION TEST |
NEXT | ![]() |
END |
12. |
DIAGNOSTIC TROUBLE CODE CHART |
(a) Proceed to Diagnostic Trouble Code Chart.
Click here
|
13. |
CIRCUIT INSPECTION* |
|
14. |
IDENTIFICATION OF PROBLEM |
|
15. |
REPAIR OR REPLACE |
|
16. |
CONFIRMATION TEST |
NEXT | ![]() |
END |
Front Fog Light Circuit
DESCRIPTION
The main body ECU (multiplex network body ECU) controls the front fog lights.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
Inspect the fuses for circuits related to this system before performing
the following inspection procedure.
If the main body ECU (multiplex ...
Reassembly
REASSEMBLY
CAUTION / NOTICE / HINT
HINT:
Perform "Inspection After Repairs" after replacing the cylinder head sub-assembly
or cylinder head LH (See page ).
PROCEDURE
1. INSTALL SPARK PLUG TUBE
NOTICE:
When using a new cylinder head, the spark plug tubes must be replaced.
...
Dtc Check / Clear
DTC CHECK / CLEAR
NOTICE:
When the diagnosis system is changed from normal mode to check mode or vice versa,
all DTCs and freeze frame data recorded in normal mode are cleared. Before changing
modes, always check and make a note of DTCs and freeze frame data.
HINT:
DTCs which are sto ...