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206-09-3 206-09-3 Anti-Lock Control • DTC B1342 ECU Is Defective DIAGNOSIS AND TESTING Anti-Lock Control — DTC C1267 is generated when the anti-lock brake control module detects an internal Diagnostic Trouble Code (DTC) Definition failure. The following DTCs relate to the anti-lock brake • DTC B1676 Battery Voltage Out of Range system (ABS): — DTC B1676 is generated when the anti-lock • DTC C1095 Hydraulic Pump Motor Circuit brake control module detects the battery Failure voltage is less than 9 volts on the internal — DTC C1095 is generated when the anti-lock milliseconds with the vehicle speed greater brake control module detects that the pump than 20 km/h (12 mph) (operational) or any motor cannot run when commanded to do so speed (self-test), or battery voltage is greater or is running erroneously. The anti-lock brake than 19 volts on the internal ignition RUN control module checks the pump operation at signal for more than 0.5 milliseconds. The key ON. If the brake pedal is depressed, the DC/DC converts high-voltage to low voltage test will be delayed until the brake pedal is for various low voltage systems. Less than 10 released. This motor test occurs each time the volts may be present during this test and the vehicle is started or at the end of an ABS DC/DC may not be on-line continuously. This event. The motor will run during ABS events DTC can be set from a DC/DC circuit that is causing pedal pulsations. failing intermittently. • DTCs C1145, C1155, C1165, and C1175, Speed The following DTCs relate to the traction inverter Sensor Input Circuit Failure module (TIM) and anti-lock brake control module — These DTCs are generated when the anti-lock interface: brake control module detects an open or short • DTC C1184 ABS System Is Not Operational sensor, an open or shorted sensor coil, or an — The anti-lock brake control module has a fault open or shorted trigger circuit in the anti-lock line which it uses to notify the traction brake control module. inverter module (TIM) when an anti-lock • DTCs C1233, C1234, C1235, and C1236, brake system (ABS ) fault occurs. The Anti-Lock Brake — Input Signal Missing anti-lock brake control module outputs a 12 — These DTCs are generated when the anti-lock detects an ABS fault. This signal stays low brake control module detects a missing sensor until the concern has been corrected. The TIM signal causing unwarranted ABS cycling or an generates DTC C1184 and disables extended locked wheel behavior. regenerative braking during normal operation • DTC C1267 ABS Functions — Temporarily when it detects the ABS fault line is low. If Disabled DTC C1184 occurs, the malfunction indicator — DTC C1267 is generated when the anti-lock lamp (MIL), red brake warning indicator, and brake control module detects an internal yellow ABS warning indicator are illuminated. failure. |