CAT

This diagnostic code is used only by GMT-560 applications.

The ECM detects the following:

•The Secondary Fuel Level signal voltage is below the acceptable range for more than 10 seconds.

The fuel level sensors are OEM installed components for the vehicle. The sensors are selectable through a customer programmable parameter and the customer programmable parameter may be protected by customer passwords.

Possible Causes:

1) Loose ECM Connection/Harness
2) Fuel level sensor failure
3) WIring between fuel level sensor & ECM

The acceleator pedal throttle position sensor supply voltage is higher than it should be.

The Engine Control Module (ECM) detects the following conditions:

•The injection actuation pressure is greater than 3 MPa (435 psi) for more than three seconds when the engine is off.
•The difference in the actual pressure and the desired pressure is greater than 2 MPa (290 psi) for more than ten seconds with the engine running.
•Actual rail pressure is between 11.0 MPa (1595.41 psi) and 17.4 MPa (2523.66 psi) for more than ten seconds.
•Sensor current changes more than 0.075 Amp and rail pressure changes less than 0.5 MPa (72.5 psi) with the engine on.
•The engine is not running and the ECM has been powered for at least four seconds.
•Cold mode is not active.
•Engine speed is 0 rpm for more than 3 seconds and the engine is not running.

The injection actuation pressure sensor measures the pressure of the oil in the high pressure oil manifold. The high pressure oil in the manifold is used to actuate the injectors and the high pressure oil is used to control the fuel injection pressure. Fuel injection pressure is based on inputs from the sensors. The inputs are used by the Engine Control Module (ECM) for calculating the fuel injection pressure. The ECM uses the reading from the injection actuation pressure sensor in order to control the operation of the injection actuation pressure control valve.

Probable Causes:

1) ECM Connection
2) Injection actuation pressure sensor
3) Injection actuation pressure sensor wiring/connection

Indicates the battery circuit to the ECM has either an intermittent or low battery condition while the engine is running. If battery voltage disappears without returning, the ECM will not log this diagnostic code and the engie will shut down

The customer parameter PTO configuration is programmed to remote throttle and the PTO On/Off switch is ON. The ECM is not receiving a correct PTO throttle signal

This condition indicates that the battery circuit to the Engine Control Module (ECM) has excessive voltage while the engine is running.

The ECM detects the following conditions:

•For 12 V systems, the battery voltage to the ECM exceeds 16 V for more than 0.5 seconds.
•For 24 V systems, the battery voltage to the ECM exceeds 32 V for more than 0.5 seconds.

The ECM also detects the following conditions:

•The engine control is in the ON mode.
•The engine is not cranking.
•The engine is running.
•The ECM has been powered for at least three seconds

Probable Causes:

1) Aftermarket device preventing battery voltage from getting to ECM
2) Problem with wiring between ECM and battery
3) Low voltage battery or failed charging system
4) Keyswitch issue or wiring from keyswitch to ECM or battery
5) ECM Failure

This condition indicates that the battery circuit to the Engine Control Module (ECM) has a low voltage condition while the engine is running. If battery voltage disappears without returning, the ECM will not log this diagnostic code and the engine will shut down.

The ECM detects the following conditions:

•The engine control is in the ON mode.
•The engine is not cranking.
•The engine is running.
•The ECM has been powered for at least three seconds.

The ECM also detects the following conditions:

•Battery voltage to the ECM is below 9 V for 12 V systems for more than 0.5 seconds.
•Battery voltage to the ECM is below 18 V for a 24 V system for more than 0.5 seconds.

Probable Causes:

1) Aftermarket device preventing battery voltage from getting to ECM
2) Problem with wiring between ECM and battery
3) Low voltage battery or failed charging system
4) Keyswitch issue or wiring from keyswitch to ECM or battery
5) ECM Failure

This condition indicates that the battery circuit to the Engine Control Module (ECM) has a battery condition that is intermittent while the engine is running. If battery voltage disappears without returning, the ECM will not log this diagnostic code and the engine will shut down.

The ECM detects the following conditions:

•The ignition key switch is in the ON position.
•The engine is running.
•The engine is not cranking.
•The ECM has been powered for at least three seconds.

The ECM will detect one of the following conditions:

•The battery voltage drops below 6 VDC for at least 0.50 seconds.
•Three voltage readings in the past seven seconds were below 6 VDC.

Probable Causes:

1) Aftermarket device preventing battery voltage from getting to ECM
2) Problem with wiring between ECM and battery
3) Low voltage battery or failed charging system
4) Keyswitch issue or wiring from keyswitch to ECM or battery
5) ECM Failure

All of the following conditions must be met.

•The parameter “PTO Configuraton” is programmed to “Cab Switches”, “Remote Switches”, or “Remote Throttle”.
•The PTO switch is on the ON position.
•The parameter “PTO Engine Shutdown Switch” is programmed to “J1/P1:7” or “J1/P1:23”.
•The PTO engine shutdown switch is off and the PTO switch is active for 0.5 seconds.
•The PTO engine shutdown switch changes condition for 0.5 seconds.

If the vehicle speed is not equal to zero, or if there are active vehicle speed faults, the engine will go to low idle. The engine will not shut down when the vehicle speed falls to zero. When the PTO engine shutdown switch is pressed, a 186-14 will become active. The code will stay active until the engine shuts down. When the engine shuts down, the code will be logged.

Possible Causes:

1) ECM Connection/Harness
2) PTO Shutdown Switch Failure
3) ECM Failure
4) Wiring between PTO shutdown switch and ECM