ABS warning light illuminated

ABS WARNING LIGHT ILLUMINATED

Model

Freelander

Affected vehicles

WA 600000 to YA 699999 All derivatives with ABS in VIN ranges: YA 500000 to YA 562913

Date

2001-04-11

Reference

Bulletin 0009, CDS ref L8636bu

Bulletin text

Freelander

AFFECTED RANGE:

All derivatives with ABS in VIN ranges:

PROBLEM:

ABS WARNING LIGHT ILLUMINATED The customer reports seeing the ABS warning light illuminated.

CAUSE:

Signals detected within the ABS have been interpreted as faults by the ECU diagnostics.

ACTION:

Where a customer has reported seeing ABS warning light illumination, T4/TestBook must be used to establish whether a fault code has been stored within the ABS ECU. The appropriate checks as described below must then be carried out.

Refer also to the Workshop Manual, Brakes Section - Operation - Diagnostics.

In case of the following Fault Codes being detected, carry out the checks below:

FAULT CODE DESCRIPTION 01.6 Shuttle valve switch failure 11.1 Shuttle valve single switch sticking

• Master cylinder functionality • ABS modulator earth connection • ABS ECU earth connection • Modulator shuttle valve switches functionality

If no fault can be identified, confirm the ABS ECU Channel Mask and Safety Mask Numbers by carrying out the following procedure using T4/TestBook:

• Select: Freelander ABS After T4/TestBook has checked the communications and diagnostics cable it will display the ECU Channel Mask and Safety Mask numbers.

Bulletin N o : 0009

WA 600000 to YA 699999 YA 500000 to YA 562913

If the Channel Mask number is less than 5 and/or the Safety Mask Number is less than 3, replace the ABS ECU with new ECU part number SRD100481.

Refer to Workshop Manual repair number 70.65.01 for ECU replacement procedure.

PARTS INFORMATION:

Old Part No

ECU - Anti-Lock Braking System SRD100480

WARRANTY CLAIMS: Use Complaint Code: 7N8A

Use S.R.O.: 70.90.89/26 Carry out preliminary electrical and mechanical checks using T4/TestBook as required Time allowance: 0.30Hrs

Use S.R.O.: 70.65.01 ABS ECU - renew Time allowance: 0.30Hrs

Any additional repairs carried out as the result of problems identified during the diagnostic procedure should be claimed in the usual way, referring to Repair Times Searcher (RTS) for relevant SRO details.

New Part No

SRD100481