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. (See HOW TO USE THIS MANUAL.)

1. Disconnect MAP/boost air temperature sensor.

Specification:

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.
- If the MAP/boost air temperature sensor is normal, but PID are out of specification, perform the "Circuit Open/Short Inspection".







Circuit Open/Short Inspection
1. Disconnect the PCM connector.
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