2002 Suzuki XL7 PO717, PO128

Tiny
TOM GOULD
  • MEMBER
  • 2002 SUZUKI XL7
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 82,762 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 Reply

Tiny
DAVE H
  • MECHANIC
  • 13,383 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
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Friday, April 30th, 2010 AT 4:24 AM

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