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Page Title:
CODE 34 TURBO BOOST SENSOR (TBS) SIGNAL VOLTAGE LOW. |
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 TM 9-2320-364-20-1
2-13. DDEC II TROUBLESHOOTING (CONT).
A4 CODE 34 TURBO BOOST SENSOR (TBS) SIGNAL VOLTAGE LOW.
INITIAL SETUP
Tools and Special Tools
Equipment Condition
Tool Kit, General Mechanic's: Automotive
Engine OFF, (TM 9-2320-364-10)
(Item 74, Appendix G)
Parking brake applied, (TM 9-2320-364-10)
STE/ICE-R (optional) (Item 3, Appendix G)
Wheels chocked, (TM 9-2320-364-10)
DDEC Repair Kit (Item 15, Appendix G)
Top engine access cover opened,
Multimeter (Item 44, Appendix G)
(TM 9-2320-364-10)
Reader, Diagnostic (Item 53, Appendix G)
Jumperwire
References
TM 9-2320-364-10
TM 9-4910-571-12&P
START
1.
KNOWN INFO
TEST OPTIONS
CHECK ENGINE light (CEL)
DDR test.
Is Code 34 the only code
comes ON and stays ON.
displayed on DDR?
REASON FOR QUESTION
POSSIBLE PROBLEMS
Determine if engine harness is
TBS connector faulty.
faulty.
TBS sensor faulty.
Wires 432 and/or 452 are open.
Wires 432 and/or 452 are
shorted.
DDEC ECM connectors faulty.
DDEC ECM faulty.
Wires 416 and/or 452 are open.
For Codes 14, 15, 23,
24 or 34 through 36,
NO
go to Fault A5B
YES
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