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TM 9-2320-360-20-3
Section 4
TROUBLESHOOTING CHARTS
E. FLASH CODE:
33
J1587 CODE:
P102 3 - TURBO BOOST PRESSURE CIRCUIT FAILED HIGH (HIGH VOLTAGE)
STEP/SEQUENCE
33-5
Check for Short to +5
Volt Line
Turn ignition off.
Disconnect engine harness
connector at the ECM.
Read resistance between sockets
W1 and P1 on the engine
harness connector.
33-6
Check for Short to
Battery +
Disconnect batteries (para 7-61).
Disconnect the vehicle harness
and 5-way power harness
connectors at the ECM.
Read resistance between socket
P1 of the engine harness
connector and socket B3 of the
vehicle harness connector.
Also read resistance between
socket P1 on the engine harness
connector and the following
sockets on the 5-way power
harness connector: A and C.
33-7
Check ECM Connectors
Check terminals at the
engine harness connector
(both the ECM and harness side)
for damage; bent, corroded, and
unseated pins or sockets.
RESULT
Less than or
equal to 10,000 ohms.
Greater than
10,000 ohms or open.
All readings are
greater than 10,000 ohms
or open.
Any reading is
less than or equal to
10,000 ohms.
Terminals and
Replace ECM (para 7-29.1).
connectors are okay.
Then go to 33-30.
Problem found.
WHAT TO DO NEXT
Signal line (ckt #432) is shorted
to the engine +5 volt line (ckt
#416). Repair short. Then go
to 33-30.
Go to 33-6.
Go to 33-7.
A short exists between the
sockets where less than 10,000
ohms resistance was read.
Repair short and connect
batteries. Then go to 33-30.
Repair terminals/connectors
(para 7-77). Then go to 33-30.
H-165
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