Toyota 4Runner: How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT
HINT:
- Use these procedures to troubleshoot the lighting system.
- *: Use the Techstream.
PROCEDURE
|
1. |
VEHICLE BROUGHT TO WORKSHOP |
|
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|
2. |
INSPECT BATTERY VOLTAGE |
Standard voltage:
11 to 14 V
If the voltage is below 11 V, recharge or replace the battery before proceeding.
|
|
3. |
CHECK FOR DTC* |
(a) Check for DTCs (See page .gif)
).
(b) Clear the DTCs (See page ).
(c) Recheck for DTCs (See page ).
|
Result |
Proceed to |
|---|---|
|
DTC output does not reoccur |
A |
|
DTC output reoccurs |
B |
| B | .gif) |
GO TO STEP 6 |
|
|
4. |
PROBLEM SYMPTOMS TABLE |
(a) Refer to Problem Symptoms Table (See page
).
|
Result |
Proceed to |
|---|---|
|
Fault is not listed in problem symptoms table |
A |
|
Fault is listed in problem symptoms table |
B |
| B | |
GO TO STEP 6 |
|
|
5. |
OVERALL ANALYSIS AND TROUBLESHOOTING* |
(a) Operation Check (See page ).
(b) Terminals of ECU (See page ).
(c) Data List / Active Test (See page ).
|
|
6. |
ADJUST, REPAIR OR REPLACE |
|
|
7. |
CONFIRMATION TEST |
| NEXT | |
END |
System Diagram
SYSTEM DIAGRAM
...
System Description
SYSTEM DESCRIPTION
1. AUTOMATIC LIGHT CONTROL SYSTEM
(a) General
When the headlight dimmer switch is in the AUTO position, the automatic light
control sensor detects ambient light levels and outp ...
Other materials about Toyota 4Runner:
Shift Solenoid "B" Control Circuit Low (Shift Solenoid Valve S2) (P0976,P0977)
DESCRIPTION
Shifting from 1st to 5th is performed in combination with the ON and OFF operation
of the shift solenoid valves SL1, SL2, S1, S2 and SR, which is controlled by the
ECM. If an open or short circuit occurs in one of the shift solenoid valves, th ...
Backup Battery Failure (B15CC)
DESCRIPTION
This DTC is stored when the DCM (Telematics Transceiver) detects one of the following:
Open or short in the BUB (Back-Up Battery) circuit.
The BUB (Back-Up Battery) voltage drops or the BUB (Back-Up Battery)
malfunctions.
The B ...
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