Toyota 4Runner: How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT
HINT:
- Use these procedures to troubleshoot the air conditioning system.
- *: Use the Techstream.
PROCEDURE
|
1. |
VEHICLE BROUGHT TO WORKSHOP |
|
.gif)
|
2. |
CUSTOMER PROBLEM ANALYSIS AND SYMPTOM CHECK |
|
|
3. |
INSPECT BATTERY VOLTAGE |
(a) Measure the voltage of the battery.
Standard voltage:
11 to 14 V
If the voltage is below 11 V, recharge or replace the battery before proceeding to the next step.
|
|
4. |
CHECK COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM* |
(a) Use the Techstream to check if the CAN communication system is functioning normally.
|
Result |
Proceed to |
|---|---|
|
CAN DTC is not output |
A |
|
CAN DTC is output |
B |
| B | .gif) |
GO TO CAN COMMUNICATION SYSTEM |
|
|
5. |
CHECK PANEL DIAGNOSIS |
(a) Check panel diagnosis (See page .gif)
).
(1) Indicator Check
(2) Sensor Check
|
|
6. |
CHECK FOR DTC* |
(a) Check for DTCs and note any codes that are output (See page
).
(b) Clear the DTCs (See page ).
(c) Based on the DTCs output above, try to force output of the air conditioning system DTC by simulating the conditions indicated by the DTC. Then recheck for DTCs.
|
Result |
Proceed to |
|---|---|
|
DTC is not output |
A |
|
DTC is output |
B |
| B | |
GO TO DIAGNOSTIC TROUBLE CODE CHART |
|
|
7. |
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 9 |
|
|
8. |
OVERALL ANALYSIS AND TROUBLESHOOTING* |
(a) Terminals of ECU (See page
).
(b) Data List / Active Test (See page ).
(c) On-vehicle Inspection
(d) Inspection
|
|
9. |
ADJUST, REPAIR OR REPLACE |
|
|
10. |
CONFIRMATION TEST |
| NEXT | |
END |
System Diagram
SYSTEM DIAGRAM
Communication Table
Transmitter
Receiver
Signal
Communication Line
Air conditioning amplifier assembly
ECM
...
Customize Parameters
CUSTOMIZE PARAMETERS
1. CUSTOMIZING FUNCTION WITH TECHSTREAM (REFERENCE)
HINT:
The following items can be customized.
NOTICE:
When the customer requests a change in a function, first make ...
Other materials about Toyota 4Runner:
Front Differential Carrier Oil Seal(for 4wd)
Components
COMPONENTS
ILLUSTRATION
Replacement
REPLACEMENT
PROCEDURE
1. REMOVE FRONT DIFFERENTIAL CARRIER ASSEMBLY
(a) Remove the front differential carrier assembly (See page
).
2. REMOVE FRONT DRIVE PINION COMPANION FLANGE NUT
(a) Using SS ...
Inspection
INSPECTION
PROCEDURE
1. INSPECT FRONT DRIVE SHAFT ASSEMBLY
NOTICE:
Keep the drive shaft level while handling it.
(a) Check if there is excessive play in the outboard joint.
(b) Check if the inboard joint shaft slides smoothly in the thrust direction.
...
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