Possible Causes
WARNING: This page is about a different variant/trim than selected.
- Electrical Cause
- Yes
- Mechanical Cause
- No
- Control Module Cavity
- Circuit reference I_A_IMTS
- Monitor Description
- After greater than 8hr engine off time, all temperature sensor reading are averaged at start except the outlier, each temperature sensor is compared to the average, and if there is a large difference a DTC is set after the engine has started
- Purpose of the DTC
- Monitor sensor for excessive drift compared to other sensors
- Component
- Intake manifold TMAP sensor (temperature)
- Prioritized List of Possible Causes
- Battery disconnection resulting in errors in engine off time (short soaks may look like long soaks)
- Electric block heater applied and not detected
- Connector is disconnected, connector pin is backed out, connector pin corrosion
- Intake manifold TMAP sensor - Wiring integrity
- Short circuit to ground
- Short circuit to power
- Open circuit
- High resistance
- Intake manifold TMAP sensor failure