Boost Air Temperature Sensor Inspection

BOOST AIR TEMPERATURE SENSOR INSPECTION [L3 WITH TC]

Resistance Inspection

NOTE:
- Before performing the following inspection, make sure to follow the procedure as indicated in the troubleshooting flowchart. Description and Operation

1. Disconnect MAP/boost air temperature sensor.

2. Measure the resistance between the MAP/boost air temperature sensor terminals A and B using a tester.






- If not as specified, replace the MAP/boost air temperature sensor. Service and Repair
- If the MAP/boost air temperature sensor is normal, but PID are out of specification, perform the "Circuit Open/Short Inspection".

Specification





Circuit Open/Short Inspection









1. Disconnect the PCM connector. (See Service and Repair.)

2. Inspect the following wiring harnesses for an open or short circuit. (Continuity check)

Open circuit

- If there is no continuity, there is an open circuit. Repair or replace the wiring harness.

- MAP/boost air temperature sensor terminal A and PCM terminal 2AV
- MAP/boost air temperature sensor terminal B and PCM terminal 2N
- MAP/boost air temperature sensor terminal C and PCM terminal 2AU

Short circuit

- If there is continuity, there is a short circuit. Repair or replace the wiring harness.

- MAP/boost air temperature sensor terminal A and power supply
- MAP/boost air temperature sensor terminal B and power supply
- MAP/boost air temperature sensor terminal B and body ground
- MAP/boost air temperature sensor terminal C and body ground