| Subject: | New Isuzu Accessory Labor Operations | 
| Models: | 2002-2005 Chevrolet W-Series Medium Duty Tilt Cab | 
| 2002-2005 GMC W-Series Medium Duty Tilt Cab | 
| 2002-2005 Isuzu N-Series Commercial Models | 
| with Isuzu Diesel Engine | 
In order to better identify areas of concern with Isuzu Authorized Accessories, labor operations and times have been established for the following systems:
| • | ENGINE PROTECTION SYSTEM | 
| • | CRUISE CONTROL | 
| • | DUAL FUEL TANK OPTION | 
Please familiarize yourself and your Warranty Administration department with these new labor operations and use them when applicable. These new operations are listed under the heading: R-Dealer Installed Accessories .
Labor Operation  | Description  | Labor Time  | Diagnosis Time  | 
|---|---|---|---|
R9500  | Module, Engine Protection System  | 0.3 hr  | 0.0-0.5 hr  | 
R9504  | Switch, Engine Protection System Coolant Level  | 0.3 hr  | 0.0-0.5 hr  | 
R9505  | Switch, Engine Protection System Oil Pressure  | 0.3 hr  | 0.0-0.5 hr  | 
R9508  | Sensor, Engine Protection System Coolant Temperature  | 0.3 hr  | 0.0-0.5 hr  | 
R9510  | Harness, Engine Protection System  | 0.8 hr  | 0.0-0.5 hr  | 
R9512  | Module, Cruise Control  | 0.5 hr  | 0.0-0.5 hr  | 
R9514  | Harness, Cruise Control  | 0.5 hr  | 0.0-0.5 hr  | 
R9516  | Switch, Cruise Control  | 0.5 hr  | 0.0-0.5 hr  | 
R9518  | Cable, Cruise Control  | 0.5 hr  | 0.0-0.3 hr  | 
R9521  | Manifold, Auxiliary Fuel Tank  | 1.0 hr  | 0.0-0.3 hr  | 
R9523  | Valve, Auxiliary Fuel Tank  | 0.5 hr  | 0.0-0.3 hr  | 
R9525  | Tank, Auxiliary Fuel  | 0.8 hr  | 0.0-0.3 hr  | 
R9527  | Bracket, Auxiliary Fuel Tank  | 1.0 hr  | 0.0-0.3 hr  | 
R9529  | Meter, Engine Run Hour  | 0.3 hr  | 0.0-0.5 hr  |