 |
|||
|
|
|||
|
Page Title:
CODE 21 THROTTLE POSITION SENSOR (TPS) SIGNAL VOLTAGE HIGH. |
|
||
| ||||||||||
|
|
 TM 9-2320-364-20-1
2-13. DDEC II TROUBLESHOOTING (CONT).
A4 CODE 21 THROTTLE POSITION SENSOR (TPS) SIGNAL VOLTAGE HIGH.
INITIAL SETUP
References
Tools and Special Tools
TM 9-2320-364-10
Tool Kit, General Mechanic's: Automotive
TM 9-4910-571-12&P
(Item 74, Appendix G)
DDEC Repair Kit (Item 15, Appendix G)
Equipment Condition
Multimeter (Item 44, Appendix G)
Engine OFF, (TM 9-2320-364-10)
Reader, Diagnostic (Item 53, Appendix G)
Parking brake applied, (TM 9-2320-364-10)
Remover, Connector (Item 55, Appendix G)
Wheels chocked, (TM 9-2320-364-10)
Top engine access cover opened,
(Item 95, Appendix G)
(TM 9-2320-364-10)
Jumperwire
Materials/Parts
Compound, Corrosion Preventive
(Item 34, Appendix C)
Lockwasher (Item 168, Appendix F)
START
1.
KNOWN INFO
TEST OPTIONS
CHECK ENGINE light (CEL)
DDR test.
Is Code 21 the only code
comes ON and stays ON.
displayed on DDR?
REASON FOR QUESTION
POSSIBLE PROBLEMS
If Code 12 or 22 are displayed
on DDR, vehicle harness may
Wires 952 and/or 419 are open.
be faulty.
TPS is faulty.
TPS terminals and/or connector
are faulty.
Wires 417 and/or 916 shorted.
Vehicle harness connector
and/or power harness
connector shorted.
DDEC ECM terminals faulty.
For Code 12 or 22, go
DDEC ECM faulty.
NO
to Fault A5A
YES
|
|
Privacy Statement - Press Release - Copyright Information. - Contact Us |
Click
here for thousands of PDF manuals