Instruments - Noise Coming From Instrument Cluster
2006 Service BulletinsTSB SB06-11-S015
Noise Coming From Instrument Panel Cluster (This Bulletin Supersedes SB0S-11-S006)
ISSUE DATE: DECEMBER 2006
Affected Vehicles
2003-2007 Isuzu Ascender
Service Information
This bulletin is being revised to add model years and provide important repair information.
Condition
Some customers may comment on a noise coming from the Instrument Panel Cluster (IPC) while driving or on initial start-up. Instrument clusters may contain stepper motor gauges that can make noise during the following conditions:
^ Initial startup (gauges zero/reset)
^ Gauge ascending and descending (gauge sweeping)
^ Engine idle (tachometer ticking)
^ Engine off (gauges reset to zero)
Possible Cause:
The cause of this noise may come from the instrument cluster gauges, which contain stepper motors. As the gauge pointer moves, rotors and gears inside the stepper motors are rapidly rotated and rubbing one another. It is natural to generate mechanical noise due to all gear movement. However, it will not in any way affect the performance and durability of the cluster.
Correction:
Replace Instrument Panel Cluster (IPC).
Service Procedure
For vehicles built or clusters remanufactured on or after March 1, 2005, DO NOT exchange the IPC for a noise only concern. As of March 1, 2005, all stepper motor improvements are in place and noise from the cluster is within the acceptable performance. Any remaining noise from the IPC is inherent to the system design and replacing the cluster for just a noise concern will more than likely result in a similar noise. Please inform the customer that the IPC is performing within the acceptable guideline. If after the customer has been informed and still insist to replace the cluster, then the cluster should be replaced.
For vehicles built or clusters remanufactured prior to March 1, 2005, clusters should be replaced for noise concern.
Clusters should continue to be replaced for any concern affecting the functionality of the IPC.
Warranty Claim Information
Use the labor operation shown.
NOTE:
1. Labor Time includes administrative time allowance.
2. Information released on paper and electronic format prior to bulletin release cannot be updated. For the most current and up to date information refer to the website
3. Always refer to the Isuzu Service Policy Procedure Manual for specific details on warranty coverage and policies.
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