BOLT 4532844 - Caterpillar

System Operation Description:Use this procedure under the following situation:The idle shutdown is suspected of incorrect operation.The following background information is related to this procedure:"Idle Shutdown Timer"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 0.
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 driver moves the clutch pedal.
The driver moves the service brake pedal.The following event code will be logged when the driver overrides the timer by the use of the clutch pedal or the brake pedal during the 90 second period:
71-00 Idle Shutdown Override (01)If the parameter for the "Allow Idle Shutdown Override" is programmed to "NO", the timer cannot be overridden by the use of the clutch pedal or the brake pedal during the final 90 second period. "YES" is the factory default that is programmed for the parameter for the "Allow Idle Shutdown Override". The allowance of the override is the default.
71-01 Idle Shutdown Occurrence (47)Code 71-01 records the event and the code does not indicate an electrical system malfunction or an electronic system malfunction. Disable the timer by programming "Idle Shutdown Timer" to 0 (factory default).The ECM will shut down the engine but not the vehicle electrical system when the "Idle Shutdown Timer" time expires. The "Engine Shutdown Output" can be used to shut down the vehicle electrical system after the "Idle Shutdown Timer" time has expired. If auxiliary output 1, auxiliary output 2, or auxiliary output 3 is programmed to "Engine Shutdown Output", the ECM and portions of the truck electrical system will be shutdown.The "Idle Shutdown Timer" feature can be temporarily disabled by the use of the Caterpillar Electronic Technician (ET). The "Idle Shutdown Timer" feature can be temporarily disabled through the "System Troubleshooting Settings" screen in order to help troubleshoot other problems. Temporarily disabling this feature avoids engine shutdowns when you are troubleshooting other systems. The use of this method eliminates the need to temporarily alter the customer specified parameter of "Idle Shutdown Timer".Note: If the following diagnostic code is active, the "Idle Shutdown Timer" will not operate.
84-08 Vehicle Speed Out Of Range (36)Note: The timer will be overridden if the following conditions exist.
The "Allow Idle Shutdown Timer Override" is programmed to "Outside Temperature Based" or "J1587 Outside Temperature Based".
The temperature that is being sensed by the ECM is below the minimum air temperature that is programmed or the air temperature is above the