ABS/TCS - Service Stability Lamp ON/DTC C0455 Set
TSB # IB07-09-S001Issue Date: APRIL 2007
Subject:
Using Tech2 To Diagnose "Service Stability" Light
Affected Vehicles:
2006 Isuzu Ascender (US/UT)
Service Information
The Service Stability light is on and DTC C0455 is stored. When the Tech 2 is used it lacks diagnostics capabilities. This is due to the software within the VSES module that allows the Tech 2 to display data.
To obtain additional diagnostic data for the Steering Wheel Position Sensor reprogram the VSES with an updated calibration using IDS Version 9 or newer. Select the calibration titled "New software with diagnostic enhancements for DTC C0455 and changes that eliminate the need to replace the EBCM when the yaw rate sensor is replaced".
Once the VSES has been reprogrammed with the new calibration the Tech 2 will be able to access addition stability data related to the C0455 DTC and Steering Wheel Position Sensor.
This data will include:
^ Steering Wheel Position Degrees
^ Analog Steering Wheel Position Voltage
^ Digital SWPS Phase A and Digital SWPS Phase B.
IMPORTANT:
To access this additional data in the Tech21 "build" the vehicle as a 2007 model year in the Tech2.
If the vehicle is "built" as a 2006 model year the additional Tech 2 data will not be available.
TIP: Install this calibration only when attempting to diagnosis a steering wheel position/C0455 concern, replacing a yaw rate sensor or when replacing and programming a new VSES module.
TIP: This calibration offers no performance enhancement to the stability system. It only allows parameters previously missing in the Tech 2 to be viewed and aids in diagnostics, and the ability to recalibrate yaw rate on a 2006 MY vehicle.
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