Note: This procedure checks for an open circuit or for a short circuit in the Cat Data Link. If you are experiencing problems with communications…
Category: C7
The CAN data link is used to communicate information between the Electronic Control Module (ECM) and other modules. Use this procedure to troubleshoot any suspect…
Probable Causes Unit injectors Fuel supply Air supply Engine idle Accessory equipment Recommended Actions Note: The procedures have been listed in order of probability. Complete…
Probable Causes Air shutoff Active codes and logged codes Unstable fuel supply Electrical connections Switches Circuit protection Engine speed/timing Recommended Actions Note: The procedures have…
Probable Causes Batteries and Battery Cables Switches and/or Circuit Breakers (if applicable) Starting Motor Solenoid and Starting Circuit Starter Pinion and Flywheel Ring Gear …
Probable Causes Fuel Supply Engine Shutdown Switches (if applicable) Starting Aids (if applicable) Air Inlet and Exhaust System Theft Deterrent System (if applicable) Sensors …
Probable Causes Wiring and/or electrical connectors Cat Data Link CAN data link (if equipped) Electronic Control Module (ECM) Recommended Actions Note: The procedures have been…
Probable Causes Battery Switched Battery Circuit Recommended Actions Download the Product Status Report from the engine ECM before performing any troubleshooting or clearing diagnostic…
Probable Causes Alternator Charging Circuit Recommended Actions Note: The procedures have been listed in order of probability. Complete the procedures in order. Table 1 Troubleshooting…
Download the “Warranty Report” from the engine ECM before performing any troubleshooting or clearing diagnostic trouble codes. Probable Causes Codes Parameters Throttle Signal Air…