ISC, ISCe, QSC8.3, ISL, ISLe3, ISLe4 and QSL9 Engines – 020-015   Engine Brake 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 Procedure 013-009 in Section 13.
• Remove the rocker lever cover. Refer to Procedure 003-011 in Section 3.

Remove the engine plug connector at the engine brake spacer.

Remove the engine receptacle connector retaining nut and o-ring.

Remove the engine receptacle from the engine brake spacer.

Disconnect the solenoid wires.

Insert a test lead into pin A in the brake harness.

Insert the other test lead into the corresponding engine pass-through terminal connector in the brake harness.

Measure the resistance. The multimeter must read a closed circuit (10 ohms or less).

Remove the test lead from pin A and insert it into pin B.

Insert the other test lead into the corresponding engine pass-through terminal connector.

Measure the resistance. The multimeter must read a closed circuit (10 ohms or less).

If the resistance values are not correct, inspect the wires for an open circuit.

Install the engine receptacle into the engine brake spacer.

Install the engine receptacle connector retaining o-ring and tighten the nut.

Install the engine plug connector at the rocker lever housing.

Connect the solenoid wires.

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 Procedure 013-009 in Section 13.
• Operate the engine and verify proper engine brake operation.