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 GTS to check for malfunctions and perform troubleshooting.
CHECK DLC3
Inspect the battery voltage.
If the voltage is below 11 V, recharge the battery before proceeding.
Check the DLC3 Click here.
FUNCTION OF INDICATOR LIGHT
When a malfunction occurs in the transfer system, the rear differential lock indicator light rapidly blinks to inform the user of the malfunction.
Rapidly blinking: Blinks at 0.25 second intervals (0.25 seconds on and 0.25 seconds off)
The illumination state of the indicator lights and sounding state of the buzzers when a DTC is output.
| DTC No. | Switching Mode | Rear Differential Lock Indicator Light | 4LO Indicator Light | Center Differential Lock Indicator Light | Buzzer |
|---|---|---|---|---|---|
| P17C2 | Rear differential switching between free and lock | Rapidly blinking | State of transfer indicated | State of center differential indicated | - |
| P17C3 | Rear differential switching between free and lock | Rapidly blinking | State of transfer indicated | State of center differential indicated | - |
| U0122 | Switching between transfer high and low | State of rear differential indicated | Rapidly blinking or state of transfer indicated | State of center differential indicated | - |
| Center differential switching between free and lock | State of rear differential indicated | State of transfer indicated | Blinks 3 times | Sounds 3 times | |
| Rear differential switching between free and lock | Rapidly blinking | State of transfer indicated | State of center differential indicated | - | |
| U0416 | Switching between transfer high and low | State of rear differential indicated | Rapidly blinking or state of transfer indicated | State of center differential indicated | - |
| Center differential switching between free and lock | State of rear differential indicated | State of transfer indicated | Blinks 3 times | Sounds 3 times | |
| Rear differential switching between free and lock | Rapidly blinking | State of transfer indicated | State of center differential indicated | - |
Blinking: Blinks at 0.5 second intervals (0.5 seconds on and 0.5 seconds off)
Rapidly blinking: Blinks at 0.25 second intervals (0.25 seconds on and 0.25 seconds off)