2002 SUZUKI XL7 PO717,PO128

  • Tiny
  • tom gould
  • 2002 Suzuki XL7

Engine Mechanical problem
2002 Suzuki XL7 6 cyl Four Wheel Drive Automatic 82762 miles

service engine soon light is on, had a diagnostic run on vehicle and these two codes showed up, how much of a problem are they

Sunday, December 13th, 2009 AT 12:42 PM

1 Answer

  • Tiny
  • Dave H
  • Expert
  • 13,548 posts

DTC P0128: COOLANT THERMOSTAT MALFUNCTION
Condition
DTC P0128 is set when engine coolant temperature is less than 167 F (75 C) after engine has run for a specified time. MIL is illuminated when ECM detects malfunction during 2 consecutive drive cycles.
Possible Causes
Possible causes are: Thermostat malfunction.
ECT sensor malfunction.
ECM malfunction.

P0717 (4) Input/Turbine Speed Sensor Circuit - No Signal

Was this
answer
helpful?
Yes
No
Friday, April 30th, 2010 AT 4:24 AM

Please login or register to post a reply.

Similar Questions