FAIL-SAFE OPERATION AND DEACTIVATION CONDITION
| DTC No. | Fail-safe Operation | Fail-safe Deactivation Condition |
|---|---|---|
| U0122 | All switching prohibited When rear differential is locked, rear differential switches to free |
CAN communication signal from skid control ECU is received and ignition switch is turned from off to ON |
| U0416 | except Pre-Runner: Switching from H2 to H4 and rear differential free to locked prohibited When rear differential is locked, rear differential switches to free for Pre-Runner: Switching from rear differential free to locked prohibited When rear differential is locked, rear differential switches to free |
Wheel speed sensor malfunction signals from skid control ECU return to normal and ignition switch is turned from off to ON |
| P163B | except Pre-Runner: Switching from H2 to H4 and rear differential free to locked prohibited When rear differential is locked, rear differential switches to free for Pre-Runner: Switching from rear differential free to locked prohibited When rear differential is locked, rear differential switches to free |
4 wheel drive control ECU internal circuit returns to normal and ignition switch is turned from off to ON |
| P17BB | Switching from rear differential free to locked prohibited When rear differential is locked, rear differential switches to free |
Rear differential lock position switch (No. 1 transfer indicator switch) signal returns to normal and ignition switch is turned from off to ON |
| P17BC | Switching from rear differential free to locked prohibited When rear differential is locked, rear differential switches to free |
Rear differential lock position switch (No. 1 transfer indicator switch) signal returns to normal and ignition switch is turned from off to ON |
| P17C0 | Switching from rear differential free to locked prohibited When rear differential is locked, rear differential switches to free |
Differential lock coil drive circuit of rear differential recovers from ground short and ignition switch is turned from off to ON |
| P17C1 | Switching from rear differential free to locked prohibited When rear differential is locked, rear differential switches to free |
Differential lock coil drive circuit of rear differential recovers from battery short and ignition switch is turned from off to ON |
| P17CC | Switching from rear differential free to locked prohibited When rear differential is locked, rear differential switches to free |
Differential lock switch signal returns to normal and ignition switch is turned from off to ON |