TM 9-6115-729-24
0013
ELECTRONIC TECHNICIAN (ET) TROUBLESHOOTING - Continued
CORRECTIVE ACTION - Continued
STEP 4.
Observe the Active Diagnostic screen on the Cat ET. Wait at least 30 seconds so
that any codes may become active. Look for an active 164-E-02 diagnostic code.
a. If 164-E-02 diagnostic code is active, try to start the engine by setting the
ENGINE CONTROL switch to MANUAL START.
b. If the engine starts and there are no active codes for the injection actuation
pressure sensor, there may be an intermittent problem in a harness that is
causing the code to be logged. Perform Wiggle Test (WP 0013, SYMPTOM
2).
c.
If the engine does not start, proceed to STEP 5.
STEP 5.
Check the status of the sensor.
a. Check the value of the injection actuation pressure on the Cat ET. The value
of the injection actuation pressure should be 0 kPa (0 psi).
b. If the value of the injection actuation pressure is above 0 kPa (0 psi), proceed
to STEP 6.
c.
If the value of the injection actuation pressure is 0 kPa (0 psi), proceed to
STEP 7.
NOTE
If a 164-E-03 code is active or a 164-E-04 code is active, the status for the injection actuation
pressure will default to 17500 kPa (2538 psi).
STEP 6.
Check the voltage supply to the injection actuation pressure sensor.
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-P13 from the injection actuation pressure sensor (Figure 6,
Item 1).
c.
Set Battery Disconnect Switch to ON. Set DEAD CRANK SWITCH to
NORMAL. On EMCP set ENGINE CONTROL switch to COOL
DOWN/STOP.
d. Measure the voltage between terminals A and B on the harness side of
connector ENG-P13 (Figure 6, Item 1) (WP 0090, Figure 2, sheet 1).
(1) If the voltage is not 5.0 0.2 Vdc, replace the ECM (WP 0084).
(2) If the voltage reading is 5.0 0.2 Vdc, the voltage is within the specified
range and the sensor is receiving supply voltage. Proceed to STEP 7.
0013-33
