Brakes - ABS Lamp ON/DTC's C0265/C0201/U1041 Set
TSB SB07-09-S002Issue Date: JULY 2007
ABS Light On, DTCs C0265, C0201, U1041 Set And/Or Loss Of Communication With Brake Module
This Bulletin Supercedes SB05-09-S001
Affected Vehicles:
2003-2007 Isuzu Ascender
Service Information
This bulletin is being revised to update model years.
Condition:
Some customers may comment that the ABS light is on. Upon further inspection DTCs C0265 and C0201 may be set in the brake module. It is also possible for DTC U1041 to set in other modules. There may also be a loss of communication with the brake module.
Possible Cause:
A poor connection at the EBCM ground 304 is causing unnecessary replacements of brake modules.
Correction:
Reground the EBCM Ground. DO NOT REPLACE THE BRAKE MODULE.
Service Procedure
Perform the following steps to improve the connection of the EBCM Ground:
1. Remove the EBCM Ground. The EBCM Ground is located on the frame beneath the driver's side door. If multiple grounds are found in this location the EBCM ground can be identified as the heavy (12-gauge) wire.
2. Clean the area front and back using a Whiz Wheel(R).
3. Install the ground then the washer and then the bolt to the frame.
IMPORTANT:
It is important to use the bolts, washers and nuts specified in this bulletin. These parts have been identified due to their conductive finish.
4. Install a washer and nut to the back side of the frame.
Tighten
Tighten the nut to 9 Nm (79 lb in).
5. Cover the front and back side of the repair area using Rubberized Undercoating.
An additional check can be made to ensure a good connection for the Battery Cable to Frame ground. It is possible for this ground to cause similar symptoms with the ABS as described above.
Parts Information
Warranty Claim Information
Always refer to the Isuzu Service Policy Procedure Manual for specific details on warranty coverage and policies. Reference published Labor Time Guide for claim processing if applicable.
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