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6. Inspections Performed at Electronic Control Unit Connectors
• These inspections aid troubleshooting by enabling you to check whether electronic control unit signals are being
correctly transmitted via the vehicle harness and connectors.
The white-on-black numbers ( , , and so on) correspond to the similarly printed reference numbers in
section “3. Inspections Based on Diagnosis Codes”.
6.1 Electronic control unit connector terminal layout
6.2 Inspection instructions
• Some inspections are performed with the connectors removed. Others are performed with the connectors fitted.
Observe the following caution:
CAUTION
• Do not touch any terminal except those specified for the inspection. Be particularly careful not to cause
short circuits between terminals using the tester probes.
Check item Measurement method
Resistance of intake air temperature sensor 1
[Conditions]
• Starter switch OFF
• Disconnect connector. Perform inspection on vehicle-side connector.
[Requirements]
Terminals: A63-A32
• 0°C: 15 kΩ
• 20°C: 6.514 kΩ
• 80°C: 0.874 kΩ
01 02
01
+3.78
–2.94
+1.437
–1.147
+0.136
–0.115
TROUBLESHOOTING <DIAGNOSIS USING Multi-Use Tester>