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Symptom: ABS BRAKE MESSAGE When Monitored and Set Condition: ABS BRAKE MESSAGE When Monitored: Valid Brake CAN message received at least once and CAN Bus Circuit, ABS CAN Message Missing, ABS CAN Message Incorrect are not active. Set Condition: Signal 9brake-light switch9 not valid- ABS sending invalid value. POSSIBLE CAUSES CAN C BUS CIRCUIT DTC PRESENT ABS DTCS PRESENT ABS - BRAKE MESSAGE ERROR TCM - BRAKE MESSAGE ERROR TEST ACTION APPLICABILITY 1 NOTE: Low fluid level can be the cause of many transmission problems. If t, read the engine DTCs. Check and repair all engine DTCs prior to performing transmission symptom diagnostics. t, read and record all Transmission DTCs. NOTE: Check connectors - Clean/repair as necessary. Poor pin to terminal All Continue 2 Ignition on, engine not running. t, read Transmission DTCs. NOTE: If the DTC, CAN BUS CIRCUIT, is present, perform diagnostics on All Yes → Refer to the Transmission category and perform the appropriate symptom. No → Go To 3 33 TRANSMISSION - NAG1 |