Circuit/System Verification

WARNING: This page is about a different variant/trim than selected.

NOTE:

To minimize the effects of residual engine heat and sensor internal heating elements, perform Steps 1 and 2 of this verification procedure only if the ignition has been OFF for 8 hours or more.
The vehicle sitting in direct sun light may skew the results.

Ignition ON.
Verify the following scan tool parameters are within 25°C (45°F) of each other.
- Start-Up IAT Sensor 1
- IAT Sensor 2
- Start-Up ECT
- If not within 25°C (45°F)
  Refer to Circuit/System Testing .
- If within 25°C (45°F)
Engine idling.
Verify the following scan tool parameters are within the specified ranges.
- IAT Sensor 1; -38 to +128°C (-36 to +262°F)
- Intake Air Humidity; 5 to 95%
- IAT Sensor 2; -38 to +128°C (-36 to +262°F)
- IAT Sensor 2; 45 to 302 Hz
- If not within the specified ranges
  Refer to Circuit/System Testing .
- If within the specified ranges
Engine idling.
Verify the IAT Sensor 1 and IAT Sensor 2 Sensor parameters are between -38 and +128°C (-36 and +262°F).
- If not between -38 and +128°C (-36 and +262°F)
  Refer to Circuit/System Testing .
- If between -38 and +128°C (-36 and +262°F)
Operate the vehicle within the conditions for running the DTC. You may also operate the vehicle within the conditions that you observed from the freeze frame/failure records data.
Verify the DTC does not set.
- If the DTC sets
  Refer to Circuit/System Testing .
- If the DTC does not set
All OK