Problem Symptoms Table
HINT:
Use the table below to help determine the cause of the problem symptom. The potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.
TOUCH SELECT 2-4 AND HIGH-LOW SYSTEM
| Symptom | Suspected Area | See |
|---|---|---|
| Switch from 2WD to 4WD HIGH impossible (Only 4HI indicator light, or 4HI and 4LO indicator lights blink at 0.2 second intervals) | Harness or connector | Refer to ON-VEHICLE INSPECTION |
| Transfer shift actuator | See step 5 | |
| A.D.D. actuator | See step 6 | |
| CAN communication system | Refer to PRECAUTION | |
| 4WD control switch | Refer to ON-VEHICLE INSPECTION | |
| 4WD control ECU | Refer to TERMINALS OF ECU | |
| Transfer | Refer to INSPECTION | |
| Switch from 4WD HIGH to 4WD LOW impossible (Only 4LO indicator light, or 4HI and 4LO indicator lights blink at 0.2 second intervals)* | Harness or connector | Refer to ON-VEHICLE INSPECTION |
| Transfer shift actuator | See step 7 | |
| CAN communication system | Refer to PRECAUTION | |
| 4WD control switch | Refer to ON-VEHICLE INSPECTION | |
| 4WD control ECU | Refer to TERMINALS OF ECU | |
| Transfer | Refer to INSPECTION | |
| Switch from 4WD HIGH to 2WD impossible (4HI and 4LO indicator lights blink at 0.2 second intervals) | Harness or connector | Refer to ON-VEHICLE INSPECTION |
| Transfer shift actuator | See step 5 | |
| A.D.D. actuator | See step 6 | |
| CAN communication system | Refer to PRECAUTION | |
| 4WD control switch | Refer to ON-VEHICLE INSPECTION | |
| 4WD control ECU | Refer to TERMINALS OF ECU | |
| Transfer | Refer to INSPECTION | |
| Switch from 4WD LOW to 4WD HIGH impossible (Only 4LO indicator light, or 4HI and 4LO indicator lights blink at 0.2 second intervals) | Harness or connector | Refer to ON-VEHICLE INSPECTION |
| Transfer shift actuator | See step 7 | |
| CAN communication system | Refer to PRECAUTION | |
| 4WD control switch | Refer to ON-VEHICLE INSPECTION | |
| 4WD control ECU | Refer to TERMINALS OF ECU | |
| Transfer | Refer to INSPECTION | |
| 4HI indicator light does not come on | Harness or connector | Refer to ON-VEHICLE INSPECTION |
| 4WD fuse | See step 2 | |
| Combination meter | Refer to HOW TO PROCEED WITH TROUBLESHOOTING | |
| CAN communication system | Refer to PRECAUTION | |
| 4WD control switch | Refer to ON-VEHICLE INSPECTION | |
| 4WD control ECU | Refer to TERMINALS OF ECU | |
| 4HI indicator light remains on | 4WD control switch | Refer to ON-VEHICLE INSPECTION |
| 4WD control ECU | Refer to TERMINALS OF ECU | |
| Combination meter | Refer to HOW TO PROCEED WITH TROUBLESHOOTING | |
| 4LO indicator light does not come on | Combination meter | Refer to HOW TO PROCEED WITH TROUBLESHOOTING |
| 4WD control switch | Refer to ON-VEHICLE INSPECTION | |
| 4WD control ECU | Refer to TERMINALS OF ECU | |
| 4HI indicator light remains on | 4WD control switch | Refer to ON-VEHICLE INSPECTION |
| 4WD control ECU | Refer to TERMINALS OF ECU | |
| Combination meter | Refer to HOW TO PROCEED WITH TROUBLESHOOTING |
HINT:
*: Blinking during the return control is not a malfunction.