CAUTION / NOTICE / HINT
HINT:
*: Use the Techstream.
PROCEDURE
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1. |
VEHICLE BROUGHT TO WORKSHOP |
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2. |
CUSTOMER PROBLEM ANALYSIS |
(a) Refer to the How to Troubleshoot ECU Controlled Systems in Introduction section.
Click here
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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.
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4. |
CHECK CAN COMMUNICATION SYSTEM* |
(a) Using the Techstream, check if the CAN communication system is functioning normally.
HINT:
Click here
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Result |
Proceed to |
|---|---|
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CAN communication system DTCs are not output. |
A |
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CAN communication system DTCs are output. |
B |
| B | |
GO TO CAN COMMUNICATION SYSTEM |
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5. |
CHECK AND CLEAR DTCS AND FREEZE FRAME DATA* |
(a) Refer to DTC Check/Clear.
Click here
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6. |
SELECT CHECK MODE DIAGNOSIS* |
(a) Refer to Check Mode Procedure.
Click here
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7. |
CHECK FOR DTC* |
(a) Proceed to DTC Check/Clear.
Click here
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Result |
Proceed to |
|---|---|
|
DTCs are not output. |
A |
|
DTCs are output. |
B |
| B | |
GO TO STEP 12 |
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8. |
SYMPTOM SIMULATION |
(a) Refer to Symptom Simulation.
Click here
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9. |
COMPONENT INSPECTION |
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10. |
REPAIR OR REPLACE |
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11. |
CONFIRMATION TEST |
| NEXT | |
END |
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12. |
DIAGNOSTIC TROUBLE CODE CHART |
(a) Proceed to Diagnostic Trouble Code Chart.
Click here
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13. |
CIRCUIT INSPECTION* |
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14. |
IDENTIFICATION OF PROBLEM |
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15. |
REPAIR OR REPLACE |
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16. |
CONFIRMATION TEST |
| NEXT | |
END |
Check For Intermittent Problems
Problem Symptoms TablePtc Heater Relay
Components
COMPONENTS
ILLUSTRATION
Inspection
INSPECTION
PROCEDURE
1. INSPECT PTC HEATER RELAY
(a) Check the resistance.
(1) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection
C ...
Parts Location
PARTS LOCATION
ILLUSTRATION
ILLUSTRATION
ILLUSTRATION
ILLUSTRATION
...
Diagnosis System
DIAGNOSIS SYSTEM
1. DESCRIPTION
The 4 wheel drive control ECU records DTCs when the ECU detects a malfunction
in the ECU itself or in system circuits.
The DTCs can be read through the DLC3 of the vehicle. When the system seems to
be malfunctioning, use the Techstream to check for malfunctions ...