Test Step 3. Measure the Solenoid Resistance of the Injection Actuation Pressure Control Valve

306

TM 9-2320-312-24-2

Troubleshooting Section

C. Check the electrical resistance from the ECM

Repair: Perform the following repair:

engine harness connector P2 terminal 61 to P2

terminal 62. The resistance should be within 2

Repair the connectors or wiring and/or replace

ohms of the previous test results.

the connectors or wiring. Ensure that all of the

seals are properly in place and ensure that the

D. Check the electrical resistance from the ECM

connectors are completely coupled.

engine harness connector P2 terminal 62 to the

surrounding terminals for a short circuit:

Verify that the repair eliminates the problem.

Terminal 51

STOP.

Test Step 3. Measure the Solenoid

Terminal 52

Resistance of the Injection Actuation

Pressure Control Valve.

Terminal 63

E. Check the resistance from the ECM engine

A. Turn the ignition key switch to the OFF position.

harness connector P2 terminal 61 to the

surrounding terminals for a short circuit:

B. Disconnect the connector for the injection

actuation pressure control valve J500/P500.

Terminal 50

Note: Ensure that the seal on the connector

Terminal 51

P500 remains on P500 when the connector is

disconnected.

Terminal 52

C. Use a multimeter to measure the resistance

Terminal 60

between the two terminals of the section of the

harness for the injection actuation pressure

Note: The resistance should be greater than 10k

control valve. Record the value that was

ohms.

measured.

F. Check the resistance from the ECM engine

D. Reverse the leads of the multimeter and measure

harness connector P2 terminal 61 to the engine

the resistance again.

ground stud and from P2 terminal 62 to the

engine ground stud. The resistance should be

Expected Result:

greater than 10k ohms.

The solenoid resistance of the injection actuation

Expected Result:

pressure control valve should be between 4.0 and

16.0 Ohms.

The resistance measurements are within the proper

range.

Results:

Yes Record the measured resistance.

Reconnect the harness connector for the injection

Yes Proceed to Test Step 5.

actuation pressure control valve. Proceed to Test

Step 4.

Repair: Replace the harness for the injection

actuation pressure control valve.

Repair: Replace the injection actuation pressure

control valve. Start the engine and verify that the

STOP.

fault is no longer active.

Test Step 5. Use the "Injection Actuation

STOP.

Pressure Driver Test" on the Electronic

Service Tool to Check the Harness.

Test Step 4. Measure the Solenoid

Resistance through the Engine Harness.

A. Connect the electronic service tool to the cab

data link connector.

A. Turn the ignition key switch to the OFF position.

B. Turn the ignition key switch to the ON position.

B. Disconnect the ECM engine harness connector

J2/P2.