How to Fix the ABS. ABS Warning Light on? Self Diagnosis Test & Fault Codes. Turn Off ABS dash light

If your ABS light comes on on your Rover 800 (Rover 820/825/827) you can carry out this simple test to see what is causing the fault (FAULT CODES SHOWN BELOW) as the vehicle is fitted with an on-board Self-Diagnostics system.

The connector to use on the late model Rover 800 Mk2 (96-99) only has 2 wires going to it, so you simply connect them together as shown. On earlier Mk2 Rover 800's (92-96) the connector should have 4 wires. On the early cars you need to remove the bridge connection that is present, then connect the Yellow/Green wire to the black wire as shown. (to make sure you have the right connector the other two wire should be coloured Yellow/Black & Purple/Grey).

CODE FAULT

1-2 Start/End Identification
1-6 Front Left Solenoid Valve
1-7 Front Right Wheel
1-8 Rear Wheels Solenoid Valve
1-9 Relays or Relay Power Supply

2-5 Pulsar Ring

3-5 Return Pump
3-7 Brake Light Switch
3-9 Front Left Wheel Speed Sensor Signal

4-1 Front Left Sensor Continuity
4-2 Front Right Wheel Speed Sensor Signal
4-3 Front Right Sensor Continuity
4-4 Rear Left Wheel Speed Sensor Signal
4-5 Rear Left Sensor Continuity
4-6 Rear Right Wheel Speed Sensor Signal
4-7 Rear Right Sensor Continuity
4-8 Battery Voltage Too Low

5-5 Electronic Control Unit
5-6 Interruption of Fault Codes
The Self Diagnosis Feature will store up to the last 3 Faults it has recorded, even after the fault has been fixed. To clear the Fault Code Memory after fixing a fault and extinguishing the ABS Fault light on the dashboard. From the iginition on position, switch the ignition OFF then back ON 20, yes, 20 times! (This has been known to cause a fuse or two to pop on a few cars, so you may just need to check everything else is still working OK before you drive off!).

p.s. Here's my Top Handy Hint: If you have a fault like mine, where you need an ABS sensor, if you want you can use the ones off the opposite side of the vehicle if you re-use your brackets off the correct side. (Great tip when you find a car in the scappers that only has the wrong side one fitted, because you can still use it.)

Till Next Time, Have Fun!

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