Campaign - Rear Suspension Air Spring Replacement
No: SB133Ref:
Issue: 1
Date: 30 January 2004
SERVICE ACTION
Air Suspension Rear Spring Replacement
AFFECTED VEHICLE RANGE:
NOTE:
This Service Action affects ONLY vehicles sold or in Retailer inventory in Canada and in specific United States locations. (Alaska: 214; Colorado: 118, 119, 248, 262, 284; Idaho: 166; Maine: 224; Michigan: 117, 230, 232; Minnesota: 140; New Hampshire: 270; New York: 109, 176, 226; Vermont: 180; Wisconsin: 264, 302)
RETAILERS SHOULD ALWAYS REFER TO THE WARRANTY INQUIRY SCREEN TO VERIFY THAT A SPECIFIC VEHICLE IS SUBJECT TO THIS SERVICE CAMPAIGN.
Range Rover (LM) 3A101029 to 4A156147
SITUATION:
AIR SUSPENSION UNABLE TO MAINTAIN TARGET HEIGHT IN COLD CONDITIONS
In temperatures below -20° C (-5° F) the air suspension system may encounter difficulties maintaining normal ride height. While the vehicle is being operated normal ride height will be attained. However, it is possible for the pressure relief valve to be frozen in the open condition. The vehicle will not attain ride height until the valve thaws. At rest the vehicle may lower onto the bump stops due to air leakage from the rear springs.
RESOLUTION:
REPLACE REAR AIR SPRINGS AND RECONFIGURE ECU
At the next service opportunity or prior to retail sale, follow the rectification procedures outlined in this TIB to ensure installation of the latest configuration rear air springs and correct ECU software.
PARTS INFORMATION:
RKB500130K Rear air spring Qty 2
AS400 WARRANTY CLAIMS (CANADA ONLY):
H133 Time 1.10 hrs.
Replace both rear air springs and update software
DDW WARRANTY CLAIMS:
Warranty claims should be submitted quoting program code B133 together with the option code. This will result in payment of stated time and where applicable parts/miscellaneous expense.
The SRO information listed in the Table has been included for information only. Do not enter the SRO onto the claim.
Normal warranty policy and procedures apply.
Material allowance is included in labor operation.
CAUTION:
Performing any vehicle re-configuration with any software other than the tunes on "Range Rover 10" will not set the flag for x-link valve deletion (this option is not present on older CD's).
REPAIR PROCEDURE
REPLACE REAR AIR SPRINGS AND CONFIGURE AIR SUSPENSION ECU
1. Raise the vehicle on lift.
2. Refer to RAVE section 64.21.01 and replace both rear air spring assemblies.
3. Lower the vehicle to conduct T4 testing.
NOTE:
T4 disc DJL0DASY (Air Suspension Diagnostics) is distributed in conjunction with this TIB. The disc DJL0DASZ was sent to Retailers in conjunction with TIB 64/02/03/NAS distributed in June 2003. DJL0DASZ is replaced by DJL0DASY.
4. Connect T4 to the vehicle and load special T4 disc DJL0DASY (Air Suspension Diagnostics).
CAUTION:
During the following T4 process several commands are to be ignored:
^ The air suspension ECU is not to be replaced.
^ The battery is not to be disconnected.
^ Personalization is not to be applied to the air suspension ECU when asked.
^ Height calibration is not to be selected when asked.
5. Follow the on-screen instructions as detailed in the following flow table steps 6 through 24:
CAUTION:
Only use T4 disc DJL0DASY to carry out this procedure. Ensure all the instructions are carried out as detailed below. Make sure to retain the special T4 disc DJL0DASY (Air Suspension Diagnostics) for future use.
6. To reconfigure the Air Suspension ECU select "System Diagnostics".
7. Select "Air Suspension" on the screen shown.
8. Follow general guidance on displayed screen and when ready, press the "Continue" button to proceed.
9. Review the ECU details and when ready, press the "Continue" button to proceed.
10. Select "Vehicle Maintenance" from the screen shown.
11. Select "ECU Renewal" from the screen shown.
12. When ready, press the "Continue" button to proceed on the screen shown.
CAUTION:
Do NOT replace the Air Suspension ECU and do NOT disconnect battery.
13. Press the "Continue" button to proceed on the screen shown.
14. Select the "No" button at this point to proceed on the screen shown.
NOTE:
Once "Continue" is pressed the procedure will complete and the next screen will display.
15. Ensure ignition is ON and then press the "Continue" button on the screen shown to proceed.
CAUTION:
The revised coding will be operable once the ignition cycle described in this screen has been performed. The time delays on the screen must be followed.
16. Follow on screen ignition cycle instructions observing delay times carefully.
17. Select "Continue" to proceed.
18. Select "Exit" button on the screen shown to proceed.
NOTE:
When the procedure is complete, this screen appears.
19. Press the "Continue" button to proceed.
20. Select "Real Time Display" from the screen.
21. Select "Reservoir Parameters" from the screen.
NOTE:
The screen shown will then be displayed. This screen gives general information on the "Real Time Display" selected.
22. When ready, press the "Continue" button to proceed.
NOTE:
The Pressure Relief Valve (PRV) will not need to be replaced after reprogramming the EAS ECU for the lower pressure.
23. Verify the "Target Reservoir Pressure" displays 10.7 bar and the "Minimum Reservoir Pressure" displays 8.0 bar.
24. When ready, press the "Continue" button to complete the procedure.
25. Return to the "Diagnostic System" screen and disconnect T4 from the vehicle.
INSTALL CAMPAIGN LABEL
NOTE:
Campaign labels may have multiple Campaign numbers written on them if multiple campaigns are performed at the same time.
1. When all specified repairs have been accomplished, prepare the campaign label (LRN0002LABEL) as follows:
a) Place the label on a hard surface.
b) Use a ballpoint pen to neatly write/scribe in the bare aluminum areas of the label the following information:
^ Service Campaign code "B133"
^ Your retailer code
^ The date of repair
2. Clean all grease and dirt from the radiator support member.
3. Peel the completed campaign label from the backing paper and position it on the cleaned area.
4. Roll the label with the special roller tool to ensure proper adhesion.