Cummins ISX11.9 CM2250 – Service Manual 019-063   Internal Actuator Wiring Harness

WARNING  Batteries can emit explosive gases. To reduce the possibility of personal injury, always ventilate the compartment before servicing the batteries. To reduce the possibility of arcing, remove the negative (-) battery cable first and attach the negative (-) battery cable last.

• Disconnect the batteries. Refer to the OEM service manual.
• Remove the rocker lever cover. Refer to Procedure 003-011 in Section 3.

Disconnect the engine harness from the internal actuator harness connector at the rocker lever housing.

The internal actuator harness pass-through connector is held in place by a retaining clip on the outside of the rocker lever housing.

Remove the retaining clip on the outside of the rocker lever housing.

Disconnect the actuator harness from each of the six injector solenoids.

If applicable, disconnect the actuator harness from each of the engine brake solenoids.

Remove the ten captive allen screws securing the actuator harness to the rocker lever housing.

NOTE: The ten captive allen screws may be hidden by oil remaining on the actuator harness.

Replace or repair the internal actuator harness if there is an open circuit or a short circuit found under the protective covering of the harness body.

Clean the connector bore in the rocker lever housing.

Push the internal actuator harness connector through the rocker lever housing using engine oil on the rubber gasket.

Secure the pass-through connector to the rocker lever housing with the retaining clip.

Connect the actuator harness to each of the six injector solenoids.

NOTE: Install the injector wires so they will not interfere with a rocker lever or engine brake housing. If the rocker lever is able to come into contact with the injector harness, it will rub through the wire insulation and cause injector circuit fault codes.

Connect the actuator harness to the engine brake solenoids.

Install the ten captive allen screws securing the internal actuator harness to the rocker lever housing.

Connect the engine wiring harness to the internal actuator harness pass-through connector.

WARNING  Batteries can emit explosive gases. To reduce the possibility of personal injury, always ventilate the compartment before servicing the batteries. To reduce the possibility of arcing, remove the negative (-) battery cable first and attach the negative (-) battery cable last.

• Install the rocker lever cover. Refer to Procedure 003-011 in Section 3.
• Connect the batteries. Refer to the OEM service manual.
• Operate the engine and check for proper operation.