STEP/SEQUENCE
RESULT
WHAT TO DO NEXT
TM 9-2320-363-20-1
Section 4
TROUBLESHOOTING CHARTS
E. FLASH CODE: 33
J1587 CODE:
P102 3 . TURBO BOOST PRESSURE CIRCUIT FAILED HIGH (HIGH VOLTAGE)
33-5
Check for Short to +5
Volt Line
Turn ignition off.
Less than or
Signal line (ckt#432) is shorted
Disconnect engine harness
equal to 10,000 ohms.
to the engine +5 Volt line (ckt
connector at the ECM.
#416). Repair short. Then go
Read resistance between sockets
to 33-30.
W1 and P1 on the engine
harness connector.
Greater than
Go to 33-6.
10,000 ohms or open.
33-6
Check for Short to
Battery +
Remove both fuses to the
All readings are
Go to 33-7.
ECM.
greater than 10,000 ohms
Disconnect the vehicle harness
or open.
and 5-way power harness
connectors at the ECM.
Any reading is
A short exists between the
Read resistance between socket
less than or equal to
sockets where less than 10,000
P1 of the engine harness
10,000 ohms.
ohms resistance was read.
connector and socket B3 of the
Repair short and reinsert fuses
vehicle harness connector.
(or reset breakers). Then go to
Also read resistance between
33-30.
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 ECM
Terminals and
Reprogram ECM. Then go to
engine harness connector
connectors are okay.
33-30.
(both the ECM and harness side)
for damage; bent, corroded, and
Problem found
Repair terminals/connectors.
unseated pins or sockets.
Then go to 33-30.
Change 3 3-345.271
