TM 9-6115-730-24
0013
ELECTRONIC TECHNICIAN (FIELD) LEVEL TROUBLESHOOTING - Continued
Field Level Troubleshooting for the Tactical Quiet Generator uses the Caterpillar Electronic Technician (ET)
software and the Caterpillar Communication Adapter Group as described in WP 0012. References to Caterpillar
ET are included in other sections of the Field level troubleshooting procedures. All other Field level troubleshooting
should be performed before progressing to the ELECTRONIC TECHNICIAN procedures.
ELECTRONIC TECHNICIAN (ET) TROUBLESHOOTING
SYMPTOM
1.
Electrical Connectors Wiggle Test.
System Operation Description:
Most electrical problems are caused by poor connections. The following procedure will assist in detecting
problems with connectors and with wiring. If a problem is found correct the condition and verify that the problem
is resolved.
Intermittent electrical problems are sometimes resolved by disconnecting and reconnecting connectors. It is very
important to check for diagnostic codes immediately before disconnecting a connector. Also check for diagnostic
codes after reconnecting the connector. If the status of a diagnostic code is changed due to disconnecting and
reconnecting a connector, there are several possible reasons. The likely reasons are loose terminals, improperly
crimped terminals, moisture, corrosion, and inadequate mating of a connection.
NOTE
Perform the following test only after completing the tests in WP 0088.
MALFUNCTION
Electrical voltage or signal intermittent/erratic.
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.
Perform the Wiggle Test on the Cat ET.
a. Select the Wiggle Test from the Diagnostic Tests on Cat ET.
b. Choose the appropriate group of parameters to monitor.
c.
Press the Start button for the Wiggle Test. Wiggle the wiring harness in
order to reproduce intermittent problems. If an intermittent problem exists,
the status will be highlighted and an audible beep will be heard.
0013-2
