Conditions for Running the DTC
WARNING: This page is about a different car, the 2007 Isuzu i-370, 2007 GMC Canyon, and 2007 Chevrolet Colorado. However, it is still accessible from the selected car via links, so may be relevant.
Heater Current Test
- DTCs P0068, P0101, P0102, P0103, P0106, P0107, P0108, P0117, P0118, P0120, P0121, P0201, P0202, P0203, P0204, P0205, P0220, P0442, P0443, P0446, P0449, P0452, P0453, P0455, P0496, P1516, P2101, P2135, P2176 are not set.
- The ECT Sensor parameter is more than 70°C (158°F).
- The Ignition 1 Signal parameter is between 11-18 volts.
- The MAF Sensor parameter is between 15-30 g/s.
- The Engine Run Time parameter is more than 100 seconds.
- The Engine Speed parameter is between 1,000-2,500 RPM.
- DTC P0135 runs the heater current test twice per drive cycle when the above conditions are met for 1 second.
Heater Resistance Test
- DTCs P0068, P0101, P0102, P0103, P0106, P0107, P0108, P0117, P0118, P0120, P0121, P0201, P0202, P0203, P0204, P0205, P0220, P0442, P0443, P0446, P0449, P0452, P0453, P0455, P0496, P1516, P2101, P2135, P2176 are not set.
- The ignition is OFF for more than 10 hours.
- The ECT Sensor parameter is between -3 to +45°C (-22 to +113°F) at engine start-up.
- The ECT Sensor parameter minus the IAT Sensor parameter is less than 140°C (252°F) at engine start-up.
- The engine is running.
- DTC P0135 runs the heater resistance test once per drive cycle when the above conditions are met for 1 second.