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Home >> Suzuki >> 2001 >> XL-7 Limited >> Repair and Diagnosis >> External Pages >> Different car >> Section 162 (Engine General Information & Diagnosis) >> Diagnostic Information and Procedures >> DTC P0128: Coolant Thermostat (Coolant Temp. below Thermostat Regulating Temp.) >> DTC Confirmation Procedure

DTC Confirmation Procedure

WARNING: This page is about a different car, the 2004 Suzuki Vitara. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: Check to make sure that the following conditions are satisfied when using this DTC CONFIRMATION PROCEDURE.
  • Atmospheric pressure: higher than 560 mmHg (Altitude: lower than 2790 m (9150 ft))
  • Intake air temperature: -14 ° C (6.8 ° F) or higher
  • Engine coolant temperature at engine start: between -10 °C (14 °F) and 45 °C (113 °F).
  1. With ignition switch OFF, connect scan tool.
  2. Turn ON ignition switch, clear DTC if any.
  3. Start engine and drive vehicle at about 60 km/h (37 mph) for 15 min.
  4. Check DTC and pending DTC by using scan tool.