E396 High Fuel Rail Pressure
Conditions Which Generate This Code:
The Electronic Control Module (ECM) detects excessive fuel rail pressure. The ECM detects the following faults:
- The ECM detects fuel rail pressure that is more than the pressure that is required for the operating conditions.
- Diagnostic code 0262-03 5 Volt Sensor DC Power Supply voltage above normal is not active.
- Diagnostic code 0262-04 5 Volt Sensor DC Power Supply voltage below normal is not active.
- Diagnostic code 1797-03 Fuel Rail Pressure Sensor voltage above normal is not active.
- Diagnostic code 1797-04 Fuel Rail Pressure Sensor voltage below normal is not active.
- No diagnostic codes are active for the fuel rail pump.
- No diagnostic codes are active for the fuel injectors.
System Response:
The event code will be logged.
The warning light on the control panel will flash.
Possible Performance Effect:
E396-1
The engine will be derated until the keyswitch is turned to OFF.
Troubleshooting:
Test Step 1.
The event code does not represent a fault with the electronic system. This event indicates high fuel pressure. Refer to Systems Operation, Testing and Adjusting, "Fuel System - Inspect".
A failed relief valve, the fuel pump or an electronic unit injector may cause an event code to be logged.
Results:
- OK - STOP
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