TM 9-6115-729-24
0013
ELECTRONIC TECHNICIAN (ET) TROUBLESHOOTING - Continued
SYMPTOM
6.
Injection Actuator Pressure Control Valve Circuit Test.
System Operation Description:
Use Figure 6 and Figure 7 to troubleshoot the system when there is an active 42-E-11 inject actuation
control valve open/short.
MALFUNCTION
42-E-11 code. Failure mode is not identifiable (Mechanical Failure).
CORRECTIVE ACTION
STEP 1.
On EMCP set ENGINE CONTROL switch to OFF/RESET. Set Battery
Disconnect Switch to OFF. Set DEAD CRANK SWITCH to OFF.
STEP 2.
Connect the Cat ET to connector CDC-P7 (WP 0012).
STEP 3.
Set Battery Disconnect Switch to ON. Set DEAD CRANK SWITCH to NORMAL.
On EMCP set ENGINE CONTROL switch to COOL DOWN/STOP.
STEP 4.
On EMCP set ENGINE CONTROL switch to MANUAL START to start the
engine.
STEP 5.
Observe the active diagnostic screen on the Cat ET. Wait at least 30 seconds so
that any codes may become active. Look for a 42-E-11 diagnostic code that is
active.
STEP 6.
Check the ECM by running the Injection Press Act Driver Test.
a. On EMCP set ENGINE CONTROL switch to OFF/RESET. Set Battery
Disconnect Switch to OFF. Set DEAD CRANK SWITCH to OFF.
b. Disconnect ENG-P3 connector from the injection actuation pressure control
valve (IAPCV) (Figure 6, Item 2).
c.
Insert connector pins into connector ENG-P3-A and ENG-P3-B.
d. Connect a voltmeter to the connector pins in ENG-P3.
e. Set Battery Disconnect Switch to ON. Set DEAD CRANK SWITCH to
NORMAL. On EMCP set ENGINE CONTROL switch to COOL
DOWN/STOP.
f.
Crank the engine and observe the voltmeter.
