TM 5-3805-290-23-1
ELECTRICAL SYSTEM TESTS, INSPECTIONS, AND ADJUSTMENTS - CONTINUED
0013 00
5V ENGINE PRESSURE SENSOR SUPPLY CIRCUIT TEST - CONTINUED
2.
Check for active diagnostic codes (WP 0005 00).
a.
Connect MSD equipped with ET software to data link connector (WP 0006 00).
b.
Turn engine start switch to ON position (TM 5-3805-290-10).
c.
While engine is OFF, retrieve active and logged diagnostic codes on MSD. Record any diagnostic codes.
N OT E
Wait at least 15 seconds for diagnostic codes to become active.
d.
Check for either of these codes. If these diagnostic codes are active, proceed to step 3.
(1)
262-03 5V Sensor dc Power Supply Short to +Batt.
(2)
262-04 5V Sensor dc Power Supply Short to Ground.
e.
If ONLY above diagnostic codes are logged, proceed to step 5.
f.
If above diagnostic codes are not active or logged, exit this test.
3.
Disconnect ECM engine harness connector from ECM.
a.
Connect MSD equipped with ET software to diagnostic connector of bypass harness (WP 0006 00).
CAU T I ON
DO NOT connect the bypass harness to the battery until the 20 Amp inline fuse has been removed from the
positive +battery line. If the fuse is not removed before connection to the battery, a spark may result.
b.
Turn engine start switch to OFF position (TM 5-3085-290-10).
c.
Disconnect J1/P1 ECM engine harness connector (WP 0053 00).
d.
Connect J1/P1 bypass harness and adapter to ECM connector.
427-B0863
0013 00-7