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.
FUNCTION OF INDICATOR LIGHT
w/o Multi-information Display
When a problem occurs in the touch select 2-4 and high-low system, the 4WD indicator light (amber) and/or 4LO indicator light on the combination meter assembly rapidly blinks* to inform the driver of the problem.
*: 0.25 second intervals (0.25 seconds on and 0.25 seconds off)
w/ Multi-information Display
When a problem occurs in the touch select 2-4 and high-low system, a message is displayed on the multi-information display and/or the 4LO indicator light on the combination meter assembly rapidly blinks* to inform the driver of the problem.
*: 0.25 second intervals (0.25 seconds on and 0.25 seconds off)
Indicator light status (illumination and blinking) or multi-information display status when DTC is output.
w/o Multi-information Display
| DTC No. | 4WD Indicator Light (Green / Amber) | 4LO Indicator Light |
|---|---|---|
| U0100 | When H2: Not illuminated When H4 or L4: Illuminated (green) |
Rapidly blinking |
| U0122 | Rapidly blinking (amber) | Rapidly blinking*1 |
| U0416 | ||
| P163B | ||
| P17A0*2 | ||
| P17A4*2 | Rapidly blinking (amber) | Not illuminated |
| P17A8 | Rapidly blinking (amber) | Rapidly blinking |
| P17A9 | ||
| P17AA | ||
| P17AC | ||
| P17C7 | Rapidly blinking (amber) | When H2 or H4: Not illuminated When L4: Illuminated |
| P17C8 | ||
| P2772 | When H2: Not illuminated When H4 or L4: Illuminated (green) |
Rapidly blinking |
| P279E | Rapidly blinking (amber) | Rapidly blinking |
Rapidly blinking: Blinks at 0.25 second intervals (0.25 seconds on and 0.25 seconds off)
*1: P163B may also display the 2WD/4WD mode status.
*2: w/ A.D.D. Actuator
w/ Multi-information Display
| DTC No. | 4WD Indicator Light (Green) | 4LO Indicator Light | Multi-information Display Message |
|---|---|---|---|
| U0100 | When H2: Not illuminated When H4 or L4: Illuminated |
Rapidly blinking | - |
| U0122 | Not illuminated | Rapidly blinking*1 | 2WD-4WD mode change malfunction visit your dealer |
| U0416 | |||
| P163B | |||
| P17A0*2 | |||
| P17A4*2 | Not illuminated | Not illuminated | 2WD-4WD mode change malfunction visit your dealer |
| P17A8 | Not illuminated | Rapidly blinking | 2WD-4WD mode change malfunction visit your dealer |
| P17A9 | |||
| P17AA | |||
| P17AC | |||
| P17C7 | Not illuminated | When H2 or H4: Not illuminated When L4: Illuminated |
2WD-4WD mode change malfunction visit your dealer |
| P17C8 | |||
| P2772 | When H2: Not illuminated When H4 or L4: Illuminated |
Rapidly blinking | - |
| P279E | Not illuminated | Rapidly blinking | 2WD-4WD mode change malfunction visit your dealer |
Rapidly blinking: Blinks at 0.25 second intervals (0.25 seconds on and 0.25 seconds off)
*1: P163B may also display the 2WD/4WD mode status.
*2: w/ A.D.D. Actuator