| | Test results |
| 0 | PRELIMINARY CHECKS | All OK | Problems encountered | Operation |
|---|
| First of all, check that the tyres are the correct type, in good condition and correctly inflated | Move on to Step 1 | 1. Pressure not correct2. Tyres unsuitable or worn | 1. Make sure tyres are inflated to the correct pressure2. Replace the tyres |
| 1 | BRAKE FLUID LEAK CHECK | All OK | Problems encountered | Operation |
|---|
| Visually check:- The level of the brake fluid in the reservoir;- No fluid leaks from the brake pump, the pipes or the system connectors | Move on to Step 2 | Leaks in the system | Tighten the connectors or replace the damaged parts, see Op. 3340B ABS SYSTEM PIPES |
| 2 | CHECK USING DIAGNOSTIC EQUIPMENT | All OK | Problems encountered | Operation |
|---|
| Connect the Examiner diagnostic equipment to the diagnostic socket.Check that there are no faults in the ABS control unit | Move on to Step 3 | 1. Error detected in the control unit2. No communication with the control unit | 1. Continue following the instructions on the diagnostic equipment2. Restore:- Connection between the ABS control unit and the diagnostic connector;- ABS control unit supply See E7020 ABS |
| 3 | ACTIVE DIAGNOSIS WITH DIAGNOSTIC EQUIPMENT | All OK | Problems encountered | Operation |
|---|
| Keeping the Examiner diagnostic equipment connected, carry out the active diagnosis of:- Pump motor;- Solenoid valves | Move on to Step 4 | Fault detected in the pump or in a solenoid valve | Replace the electrohydraulic unit - ABS electronic control unit Op. 3340A12 ABS HYDRAULIC AND ELECTRONIC CONTROL UNIT - R.R. |
| 4 | PAD TYPE AND SURFACE CHECK | All OK | Problems encountered | Operation |
|---|
| Check:- the condition of the pad and braking surfaces;- type of pads | Move on to Step 5 | 1. Brake surfaces vitrified or with traces of grease, oil or water2. Front pads damaged or not the recommended type3. Rear pads damaged or not the recommended type | 1. Clean again, check and remove the causes of the fault2. Replace the front pads Op. 3310A60 FRONT BRAKE PADS - REPLACE 3. Replace the rear pads Op. 3310B62 REAR BRAKE PADS - REPLACE |
| 5 | DISC CHECK | All OK | Problems encountered | Operation |
|---|
| Check the condition of the brake discs | Move on to Step 6 | 1. Front discs worn or damaged2. Rear discs worn or damaged | 1. Replace the front discs Op. 3310A48 FRONT BRAKE DISC (ONE), LEFT OR RIGHT - R.R 2. Replace the rear discs Op. 3310B48 REAR BRAKE DISC (ONE), LEFT OR RIGHT - R.R. |
| 6 | BRAKE CALLIPER CHECK | All OK | Problems encountered | Operation |
|---|
| Check the condition of the front and rear brake calliper control pistons | Move on to Step 7 | 1. Front calliper pistons worn or seized2. Rear calliper pistons worn or seized | 1. Replace the front brake callipers Op. 3310A30 FRONT BRAKE CALIPER (ONE) - R.R 2. Replace the rear brake callipers Op. 3310B36 REAR BRAKE CALIPER (ONE), LEFT OR RIGHT - R.R |
| 7 | VACUUM PIPE CHECK | All OK | Problems encountered | Operation |
|---|
| Check that the vacuum pipe is correctly fitted/in good condition | Move on to Step 8 | 1. Pipe not fitted correctly or bent2. Pipe damaged | 1. Refit correctly2. Replace vacuum pipe Op. 3330D26 VACUUM PIPE FOR BRAKE SERVO ASSEMBLY - R.R |
| 8 | BRAKE SERVO SINGLE-ACTING VALVE CHECK | All OK | Problems encountered | Operation |
|---|
| Check that the brake servo single-acting valve is working properly | Move on to Step 9 | Single-acting valve not working properly | Replace the single-acting valve Op. 3330D20 SINGLE-ACTING VALVE FOR BRAKE SERVO - R+R |
| 9 | BRAKE SERVO CHECK | All OK | Problems encountered | Operation |
|---|
| Check that the brake servo is working properly See Test 3330DA CHECK VACUUM PUMP OPERATION AND BRAKE SERVO VACUUM CIRCUIT | Move on to Step 10 | Brake servo not working properly | Replace brake servo Op. 3330D02 BRAKE SERVO/BRAKE PUMP ASSEMBLY - R.R. |
| 10 | ENGINE VACUUM CHECK | All OK | Problems encountered | Operation |
|---|
| Check the vacuum circuit reading | Move on to Step 11 | Vacuum figure not correct | Replace the brake servo vacuum pump Op. 3330D30 VACUUM UNIT - R+R |
| 11 | BRAKE HOSES AND BLEEDING CHECK | All OK | Problems encountered | Operation |
|---|
| Visually inspect that there are no bends or constrictions in the brake pipes, bleed the system and check that the fluid comes out evenly from the bleed screws | End of diagnosis | Bends or constrictions present, the fluid does not come out evenly | Replace the section of pipe affected by the problem, see Op. 3340B ABS SYSTEM PIPES |
