BOOST AIR TEMPERATURE SENSOR INSPECTION[L3 Turbo]
id0140b6802100
Resistance Inspection
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Note
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• 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.
2. Measure the resistance between the MAP/boost air temperature sensor terminals A and B using a tester.
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• If the MAP/boost air temperature sensor is normal, but PID are out of specification, perform the “Circuit Open/Short Inspection”.
Specification
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Ambient temperature (°C {°F})
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Resistance (kilohm)
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20 {68}
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2.4—2.7
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60 {140}
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0.59—0.64
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Circuit Open/Short Inspection
1. Disconnect the PCM connector. (See PCM REMOVAL/INSTALLATION[L3 Turbo].)
2. Inspect the following wiring harnesses for an open or short circuit. (Continuity check)
Open circuit
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• If there is no continuity, there is an open circuit. Repair or replace the wiring harness.
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― 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
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• If there is continuity, there is a short circuit. Repair or replace the wiring harness.
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― 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
