CODE 22 THROTTLE POSITION SENSOR (TPS) SIGNAL VOLTAGE LOW.

TM 9-2320-364-20-1

2-13. DDEC II TROUBLESHOOTING (CONT).

A4 CODE 22 THROTTLE POSITION SENSOR (TPS) SIGNAL VOLTAGE LOW.

INITIAL SETUP

Equipment Condition

Tools and Special Tools

Engine OFF, (TM 9-2320-364-10)

Tool Kit, General Mechanic's: Automotive

Parking brake applied, (TM 9-2320-364-10)

Wheels chocked, (TM 9-2320-364-10)

STE/ICE-R (optional) (Item 3, Appendix G)

Top engine access cover opened,

DDEC Repair Kit (Item 15, Appendix G)

(TM 9-2320-364-10)

Multimeter (Item 44, Appendix G)

Reader, Diagnostic (Item 53, Appendix G)

Jumperwire

References

TM 9-2320-364-10

TM 9-4910-571-12&P

START

KNOWN INFO

TEST OPTIONS

CHECK ENGINE light (CEL)

DDR test.

Is Code 22 the only code

comes ON and stays ON.

displayed on DDR.

REASON FOR QUESTION

POSSIBLE PROBLEMS

To determine if vehicle harness

TPS faulty.

is faulty.

TPS harness connector MC6

faulty.

Wires 417 and/or 952 shorted.

Wires 417, 916 and/or 952

shorted.

DDEC ECM terminals faulty.

DDEC ECM faulty.

Wires 916 and/or 952 open.

For Codes 12 or 21,

go to Fault A5A

YES

2-230