Cummins ISX11.9 CM2250 – Service Manual 019-043   Engine Wiring Harness

Install the wiring harness.

Connect the ECM 60-pin engine connector 1 (1) and the ECM 60-pin engine connector 2 (2).

Connect the 14-pin OEM crossover connector (3).

Connect the 2-pin relayed power connector (4).

Tighten the two 60-pin connectors.

Connect the oil temperature sensor (1) and the oil pressure sensor (2).

If equipped, connect the fuel lift pump electrical connector.

Connect the camshaft position sensor.

Connect the fuel rail pressure sensor.

Connect the intake manifold pressure/temperature sensor.

Connect the aftertreatment fuel pressure sensor (1) and the aftertreatment fuel shutoff valve (2) to the engine wiring harness.

Connect the aftertreatment purge air actuator to the engine harness.

Install the wiring harness retaining clips onto the aftertreatment doser air purge actuator body. Use the following procedure for torque specifications. Refer to Procedure 011-065 in Section 11.

Connect the fuel pump actuator electrical connector.

Connect the injector pass-through connector.

Connect the crankcase pressure sensor.

Connect the crankshaft position sensor.

Install the wiring harness retaining clip onto the camshaft gear cover plate. Use the following procedure for torque specifications. Refer to Procedure 001-011 in Section 1.

Install the wiring harness retaining clip onto the cylinder head.

Connect the aftertreatment intake NOx sensor electrical connector.

Install the wiring harness retaining clips onto the engine block.

Connect the turbocharger speed sensor.

Connect the aftertreatment fuel injector electrical connector.

Connect the exhaust pressure sensor.

Connect the EGR valve electrical connector.

Connect the turbocharger actuator electrical connector.

NOTE: To prevent the turbocharger actuator wiring harness from experiencing heat damage, the harness must be secured away from nearby heat sources.

Secure the turbocharger actuator wiring harness. Use the following procedure for routing instructions. Refer to Procedure 010-134 in Section 10.

Install the wiring harness retaining clip onto the EGR system bracket.

Connect the EGR temperature sensor (1), the compressor intake temperature sensor (2), and the EGR orifice pressure sensor (3) electrical connectors.

Install the two wiring harness retaining clips from the EGR system bracket (1) and the EGR mass measurement flow assembly (2).

Connect the EGR differential pressure sensor.

Connect the coolant temperature sensor.