0164-02 Injection Actuation Pr Sensor Erratic (15)

130

TM 9-2320-312-24-2

Troubleshooting Section

System Response:

i01725081

0164-02 Injection Actuation Pr

Electronic System Response The ECM will assume

Sensor Erratic (15)

that the injection actuation pressure is 17.5 MPa

(2538 psi). The control valve for the "Injection

Actuation Pressure System" is set to a fixed position.

SMCS Code: 1925-038

The fuel delivery is limited.

Conditions Which Generate This Code:

Service Tool Display or Lamps Caterpillar

Electronic Technician (ET) will display 17.5 MPa

The ECM detected one of the following conditions:

(2538 psi) next to "Desired Injection Actuation

Pressure" and "Actual Injection Actuation

Injection actuation pressure with the engine

Pressure"on the status screen while the diagnostic

shutdown

code is active. The Check Engine Lamp will

illuminate.

The actual pressure and the desired pressure are

substantially different.

Engine Response The engine will run rough at idle.

Power output will be below normal and the vehicle

The change in injection actuation pressure was

speed will be limited to 72 km/h (45 mph).

not consistent with the change in sensor current.

Troubleshooting:

System Response:

Perform the following diagnostic procedure: "Engine

Electronic System Response The ECM will indicate

Pressure Sensor Open or Short Circuit - Test"

an active code and the code will be logged.

Results:

Service Tool Display or Lamps Caterpillar

Electronic Technician (Cat ET) will display

OK STOP.

17.5 MPa (2538 psi) next to "Desired Injection

Actuation Pressure" and "Actual Injection Actuation

Pressure"on the status screen while the diagnostic

i01638880

code is active. The Check Engine Lamp will

0164-04 Injection Actuation Pr

illuminate.

Sensor Short Circuit (15)

Engine Response This code can occur with the

engine off.

SMCS Code: 1408-081; 1925-038

Troubleshooting:

Conditions Which Generate This Code:

Perform the following diagnostic procedure:

The voltage in the injection actuation pressure

"Injection Actuation Pressure Sensor - Test"

circuit is below normal.

Results:

System Response:

OK STOP.

Electronic System Response The ECM will assume

that the injection actuation pressure is 17.5 MPa

(2538 psi). The control valve for the "Injection

i01638879

Actuation Pressure System" is set to a fixed position.

0164-03 Injection Actuation Pr

The fuel delivery is limited.

Sensor Open Circuit (15)

Service Tool Display or Lamps Caterpillar

Electronic Technician (ET) will display 17.5 MPa

SMCS Code: 1408-081; 1925-038

(2538 psi) next to "Desired Injection Actuation

Pressure" and "Actual Injection Actuation

Conditions Which Generate This Code:

Pressure"on the status screen while the diagnostic

code is active. The Check Engine Lamp will

The voltage in the injection actuation pressure

illuminate.

circuit is higher than normal.

Engine Response The engine will run rough at idle.

Power output will be below normal and the vehicle

speed will be limited to 72 km/h (45 mph).