CAT

After attempting to actuate the Injector Solenoids the ECM has detected one of the following: -An electrical short circuit to ground (to the engine Iron). – An internal injector solenoid electrical short circuit. – A short circuit to battery voltage.

The idle shutdown timer is intended to improve fuel economy by limiting idling time. The idle shutdown timer is a customer specified parameter that may be programmed for any period from 3 to 1440 minutes.

The timer is activated when all of the following conditions are met regardless of the position of the parking brake:

•The vehicle speed is zero.
•The engine is not in cold mode or dedicated PTO mode.
•The engine is not under load.

The timer can be reset by moving the vehicle or the timer can be reset by quickly depressing the accelerator pedal and releasing the accelerator pedal. The check engine lamp will begin to rapidly flash 90 seconds before the programmed time expires. During this 90 second time period, the following conditions can disable the timer:

•The clutch pedal is depressed.
•The service brake pedal is depressed.

Possible Causes:

1) ECM not programmed properly
2) Clutch or Brake pedal/sensor failure
3) Wiring for clutch and/or brake sensor position failure
4) Vehicle speed sensor failure (Speedometer not reading correctly)
5) PTO Switch or harness failure

After attempting to actuate the Injector Solenoids the ECM has detected one of the following: -An electrical short circuit to ground (to the engine Iron). – An internal injector solenoid electrical short circuit. – A short circuit to battery voltage.

A Customer Specified Parameter or a System Configuration Parameter requiring programming has not been programmed.

The Ecm detects one of the following after attempting to actuacte the injector solenoid: – An open circuit in the injector wiring. – An internal open circuit in the injector solenoid.

The Ecm detects one of the following after attempting to actuacte the injector solenoid: – An open circuit in the injector wiring. – An internal open circuit in the injector solenoid.

The Ecm detects one of the following after attempting to actuacte the injector solenoid: – An open circuit in the injector wiring. – An internal open circuit in the injector solenoid.

The Speed/Timing signal or Engine Speed/Timing Sensor #2 is lost and then returns (intermittent).

During the last 90 seconds of the idle shutdown mode after the Check Engine/Service Soon Lamp begins to flash, the brake or clutch pedal is depressed or released. NOTE: This diagnostic code represents an event and not Electronic system fault.