SLABS ECU

SLABS ECU

Model

Discovery II

Reference

Recall action ABD263

Bulletin text

RECALL ACTION BULLETIN

Circulation: X Indicates to whom this information should be circulated SERVICE MANAGER X SERVICE RECEPTION PARTS MANAGER WARRANTY MANAGER

Discovery Series II

Build date Range

PROBLEM:

The SLABS ECU interprets signals from the wheel speed sensors incorrectly, causing brake pressure to be reduced in circumstances when it should be maintained.

CAUSE:

Metallic debris from within the hub bearing intermittently attaches to the wheel speed sensor. This creates an additional spike on the sensor output sine wave, which the SLABS ECU calculates as a faster than actual wheel speed.

ACTION:

Recall the affected vehicles and replace the SLABS ECU with a new part containing revised software.

PROCEDURE

1. Connect TestBook to the vehicle and load Disc DRG0014. 2. Establish diagnostic link with SLS & ABS system and check for faults. Clear any faults that exist. 3. From the ‘VEHICLE MAINTENANCE’ screen follow the procedure for ‘ECU REPLACEMENT’. TestBook will read the data from the current ECU and prompt for a new ECU to be fitted. 4. Replace the SLABS ECU, following Service Repair Procedure 70.65.01 detailed in the Brakes section of Discovery Workshop Manual VDR 100090. 5. TestBook may now prompt for a System Test and/or SLS Calibration, follow the TestBook prompts. Td5 models 6. End the SLS and ABS diagnostics, the process is now complete. V8 models 7. Select the diagnostics for petrol engine and select ‘VEHICLE MAINTENANCE’. 8. Select ‘ECM CHECKS AND RENEWAL’ and follow the TestBook prompts.

RECALL ACTION BULLETIN No: A/B/D263

EN Bull. N o : A/B/D 263

Page: 1 of

AFFECTED RANGE:

VIN Range - XA900000 to XA907214 XA200000 to 1A299999 1A700000 to 2A736347 CKD - XA920000 to XJ920147

10 th July to 2 nd July 2001

 Land Rover 2001

9. If ‘ECM CHECK’ suggests that the latest engine tune is not loaded, the system will follow a routine to update the tune. 10. During the SLS & ABS ECU replacement process, TestBook will already have indicated that there will be two warning screens that should be ignored for this specific SLABS ECU update. a. Press ‘Continue’ from the screen titled ‘INCORRECT OR UNKNOWN ECM FITTED’. b. Press ‘Continue’ from the screen titled ‘CAUTION UNKNOWN ASSEMBLY’ 11. Complete the ECM CHECKS AND RENEWALS as indicated by the TestBook prompts. The process is now complete. NOTE: The time allowances quoted include sufficient allowance for the TestBook calibration.

PARTS INFORMATION:

PART NUMBER DESCRIPTION

SRD000070 SLABS ECU

WARRANTY CLAIMS: UK - Complaint code A263 Option code A = 01.40 hr - Replace SLABS ECU - V8 models Option code B = 01.20 hr - Replace SLABS ECU - Td5 models

Europe/Rest of world - Complaint code D263 70.65.01- Replace SLABS ECU = 01.40 hr - V8 models = 01.20 hr - Td5 models

USA and Canada - Complaint code B263 70.65.01 = 01.40 hr - Replace SLABS ECU

NOTE: The times quoted include drive in and out.

RECALL ACTION BULLETIN No: A/B/D263

QUANTITY

One

 Land Rover 2001