1. DTC U1A0A[86] description
The EHCU and rear differential lock control unit communicate the control information and diagnostic information via the CAN communication circuit. When the EHCU detects a malfunction in the CAN communication circuit, this DTC is set.
2. Condition for setting DTC U1A0A[86]
- The EHCU detects an abnormal CAN message received from the rear differential lock control unit.
3. Action taken when DTC U1A0A[86] sets
- ABS warning light illumination
- ESC warning light illumination (Models equipped with ESC)
- ABS control inhibition
- TCS control inhibition (Models equipped with ESC)
- If a malfunction occurs during the EBD control, the control is continued. However, the control is inhibited except during the EBD control.
- ESC control inhibition (Models equipped with ESC)
- HSA control inhibition (Models with ESC)
- ISS control inhibition (Models with ESC)
- Hill Descent Control inhibition (Models with ESC)
- Brake Assist control inhibition (Models with ESC)
- ESS control inhibition (Models with ESC)
- Trailer sway control inhibition (Models equipped with ESC)
- External braking request brake retention control inhibition (Models equipped with stereo cameras)
- External braking request brake pressurization control inhibition (Models equipped with stereo cameras)