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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)
NOTE - This chart is only to be used if:
1) All basic mechanical checks and physical inspections have been performed with no problem found, and
2) Diagnosis of DDEC-III was started at step START-1, pg H-25 and you have now been referred here.
STEP/SEQUENCE
33-1 Multiple Code Check
Were there any other active
codes besides Code 102/3?
33-2
Sensor Check
Turn ignition off.
Disconnect TBS connector.
Start and run engine at idle
(TM 9-2320-360-10).
Read active codes with
engine running.
33-3
Return Circuit Check
Turn ignition off.
Install a jumper wire between pins
A and B of the TBS
connector.
Disconnect engine harness
connector at the ECM.
Read resistance between sockets
P1 and Y2 on the engine harness
connector.
33-4
Check TBS Connectore
Inspect terminals at the TBS
connectors (both the sensor and
harness side) for damage; bent,
corroded, and unseated pins or
sockets.
RESULT
No other codes.
Yes, any or all
of the following codes:
110/3 or 4, 175/3 or 4,
174/3 or 4, 100/3 or 4.
Yes - but none
of the above.
Code 102/4 (and
any codes except
Code 102/3).
Code 102/3 (and
any other codes).
Less than or
equal to 5 ohms.
Greater than
5 ohms or open.
Terminals and
connectors are okay.
Problem found.
WHAT TO DO NEXT
Go to 33-2.
Go to ENG5V-1 (pg H-241).
Go to 33-2.
Go to 33-3.
Go to 33-5.
Go to 33-4.
Return line (ckt #452) is open.
Repair open. Then go to 33-30.
Replace TBS (para 7-36).
Then go to 33-30.
Repair terminals/connectors
(para 7-77). Then go to 33-30.
H-163
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