Test Step 6. Perform "Injection Actuation Pressure Test"

307

TM 9-2320-312-24-2

Troubleshooting Section

C. Connect the injection actuation pressure control

C. Access the "Injection Act Press Driver Test".

valve to the engine harness at connector

J500/P500.

D. Disconnect the injection actuation pressure

control valve from the engine harness.

D. Start the engine and run the "Injection Actuation

Pressure Test". The "Injection Actuation Pressure

Note: Do not insert any wire that is larger than

Test" is located in the "Diagnostics" menu of the

18 AWG into the harness connector (P500). Do

electronic service tool. Step through all of the

not insert the probe for the voltage test lamp into

pressure ranges.

the harness connector (P500). These actions will

spread the sockets of the connector which will

Note: This is not the "Injection Act Press Driver Test".

damage the connector. Damaged connectors could

cause intermittent connections.

E. After performing the "Injection Actuation Pressure

Test", check for active diagnostic codes or

E. Insert a 9X-7200 ECM Pin Terminal into each

logged diagnostic codes 42-11.

of the harness connector sockets P500 for the

injection actuation pressure driver.

Expected Result:

F. Connect a voltage test lamp to the ECM pin

The engine should start and the engine should run

terminals that are inserted in the P500 connector

without triggering any diagnostic codes.

and start the "Injection Act Press Driver Test"

with the electronic service tool. Then stop

the "Injection Act Press Driver Test" with the

Results:

electronic service tool.

Yes The problem has been corrected. STOP.

Note: This test procedure may cause a 42-11

Injection Actuation Pressure Control Valve Driver

(18). This is normal.

Repair: Replace the injection actuation pressure

Expected Result:

control valve. Verify that the problem is resolved.

The voltage test lamp should come on when the

STOP.

test is active.

Test Step 7. Use the "Injection Act Press

Driver Test" on the Electronic Service

Note: Personality Modules with a manufactured date

Tool to Check the ECM.

before JUNE 99 require an electrical connector

for the injection actuation pressure sensor to be

disconnected in order for the "Injection Actuation

A. Disconnect the ECM engine harness connector

Pressure Control Valve Driver Special Test" to turn

J2/P2.

off the driver for the injection actuation pressure

control valve. If the connector J204/P204 for

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

the injection actuation pressure sensor is not

disconnected, the voltage test lamp will remain on

C. Access the "Injection Act Press Driver Test" in the

when the special test is not active.

"Diagnostics" menu of the electronic service tool.

Results:

D. Connect a breakout T to the ECM engine harness

connector J2.

Yes Proceed to Test Step 6.

E. Connect a voltage test lamp to the engine

No Proceed to Test Step 7.

harness connector for the injection actuation

pressure control valve, terminal 61 and terminal

Test Step 6. Perform "Injection Actuation

62 of the breakout T.

Pressure Test".

F. Start and stop the "Injection Act Press Driver

A. Disconnect the injection actuation pressure

Test".

control valve from the engine harness at

connector J500/P500.

Note: This test procedure may cause a 42-11

Injection Actuation Pressure Control Valve Driver

B. Crank the engine for 30 seconds. Crank the

(18). This is normal.

engine three times. This will purge the air from

the system.

Expected Result:

The voltage test lamp should come on when the

test is active.