CODE 21 THROTTLE POSITION SENSOR (TPS) SIGNAL VOLTAGE HIGH (CONT). -726280294

TM 9-2320-364-20-1

A4 CODE 21 THROTTLE POSITION SENSOR (TPS) SIGNAL VOLTAGE HIGH (CONT).

KNOWN INFO

TEST OPTIONS

WARNING

READ WARNING

Resistance test.

CHECK ENGINE light (CEL)

on Page 2-225

STE/ICE-R #92.

comes ON and stays ON.

Are there

Wires 952 and 419 not open.

TPS OK.

more than

REASON FOR QUESTION

TPS terminals and connector

10,000 ohms measured

OK.

Resistance less than or equal to

between wires 417 and 916 at

10,000 ohms at vehicle harness

vehicle harness connector

connector indicates signal line

MC18, terminals D2 and A3?

POSSIBLE PROBLEMS

wire 417 is shorted to vehicle

wire 916 (+5 volt line).

Wires 417 and/or 916 shorted.

Vehicle harness connector

Repair wires 417

and/or power harness

and/or 916 (see

connector shorted.

schematic Fig 2-1)

DDEC ECM terminals faulty.

or notify

DDEC ECM faulty.

DS Maintenance.

Verify repair, go to

Step 9 of this Fault.

YES

2-224