TIGOR EV SERVICE MANUAL

BRAKES 65 NOTE: Foot pressure on the pedal, using master cylinder only, will not achieve the same degree of braking as is available from power assistance. 2. If master cylinder fails, i.e. there is insufficient fluid in master cylinder to create pressure, braking to all four wheels is retained and ABS remains operative. The red warning light (fluid level indica-tor lamp) will be illuminated if cause of the master cylinder failure is a fluid leak and level in fluid reservoir is low enough to actuate fluid level switch. Warning: Longer pedal travel is required, but power assisted braking is available at reduced efficiency. NOTE: The hydraulic connections to the hydraulic modulator can be crossed over; the ECU self- diagnosis will not detect it as a fault; nor will it cause the system to be shut down or cause a fault code to be logged in the ECU. When the hydraulic modulator is exchanged or repaired, the brake pipes to the solenoids must be tested for correct assignment using a diagnostics tester. When the inlet and outlet valve are activated, e.g. on the front left wheel, this must generate the necessary changes at the wheel. If this does not happen, the pipes have been crossed over. This will cause the system to function incorrectly. Important notes on checking for crossed connections while troubleshooting: The hydraulic connections to the hydraulic modulator can be crossed over; the ECU self- diagnosis will not detect it as a fault; nor will it cause the system to be shut down or cause a fault code to be logged in the ECU. WARNING: When the hydraulic modulator is exchanged or repaired, the brake pipes to the solenoids must be tested for correct assignment using a diagnostics tester. When the inlet and outlet valve are activated, e.g. on the front left wheel, this must generate the necessary changes at the wheel. If this does not happen, the pipes have been crossed over. This will cause the system to function incorrectly. Table of ABS 9 – Fall-back level: ABS fallback level ABS warning lamp Brake COM lamp Status System System active Lamp System active Lamp System active with limitation YES OFF NO ON System active YES OFF YES OFF Emergency - EBD NO ON YES OFF System passive NO ON NO ON