1. DTC U1800[86] description
The EHCU and ECM communicate the control information and diagnosis information via the CAN communication circuit. If the EHCU detects a malfunction in the CAN communication circuit, this DTC is set.
2. Condition for setting DTC U1800[86]
- The EHCU detects an abnormal CAN message received from the ECM.
3. Action taken when DTC U1800[86] sets
- ESC warning light illumination (Models equipped with ESC)
- TCS control inhibition (Models equipped with ESC)
- 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)