Workshop Manuals Factory service & repair Rover
Rover Rover 600 Repair Manual - Volumes 1 and 2 - 2nd Edition15 · Brakes – ABS BY4
15 · Brakes

Diagnostic trouble code (dtc) chart (page 2 of 3)

Make
Rover
Model
600 Rover 600 Repair Manual - Volumes 1 and 2 - 2nd Edition
Section
Operation
Brakes – ABS BY4Diagnostic trouble code (dtc) chart · page 2 of 3
MAIN CODE SUB CODE SYMPTOM/DIAGNOSIS PROBABLE CAUSE
1 2 Pump motor
ABS indicator light illuminates when battery voltage is detected at MCK terminal and pump motor relay OFF signal is detected. ABS indicator light illuminates when 0 Volts is detected at MCK terminal and pump motor relay ON signal is detected.		 Open or short circuit to body earth between HEATER CONTROL RELAY/REAR DEFROSTER RELAY (7.5A) fuse and engine compartment ABS fuse/relay box.
  1. Open or short circuit to body earth in PMR circuit inside engine compartment ABS fuse/relay box.
  2. Faulty pump motor relay. Open or short circuit to body earth in PMR circuit between engine compartment fuse/relay box and ABS control unit.
  3. Open circuit between battery engine compartment ABS fuse/relay box.
  4. Blown ABS MOTOR (40A) fuse.
  5. Blown MTR CHK (7.5A) fuse.
  6. Open or short circuit to body earth in motor drive circuit and MCK circuit inside engine compartment ABS fuse/relay box.
  7. Open or short circuit to body earth in MCK circuit between engine compartment ABS fuse/relay box and ABS control unit.
  8. Open or short circuit to body earth between engine compartment ABS fuse/relay box and pump motor.
  9. Faulty pump motor.
  10. Open circuit between pump motor and body earth, or poor body earth.
  11. Faulty ABS control unit.
Symptom does not reappear:
  1. Intermittent fault in MCK circuit.
  2. Intermittent fault in pump motor relay drive circuit.
  3. Intermittent fault in pump motor drive circuit.
1 3 High pressure leakage
ABS indicator light illuminates as a result of frequent ON/OFF cycle of pressure switch signal, due to pump motor repeatedly starting and stopping. Count is reset when ABS functions.		 Leaking outlet valve.
  1. Leaking relief valve.
  2. Poor contact in pressure switch circuit.
Symptom does not reappear:
Intermittent fault in pressure switch.
Intermittent fault in pressure switch circuit.
1 4 Pressure switch
ABS indicator light illuminates during initial diagnosis when pressure switch ON signal is continuously detected and OFF signal is not detected. Count of pressure switch ON signal is reset when ABS control unit detects pressure switch OFF signal.		 Short circuit to body earth between ABS control unit and pressure switch.
  1. Pressure switch stuck ON.
  2. Faulty ABS control unit.

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