Tacoma PreRunner L4-2.7L (2TR-FE) (2005)
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b. Check the temperature selector switch voltage.
1. Apply battery voltage (13.5V) across terminals 10 (IG) and 9 (GND).
2. Connect the positive (+) tester probe of a voltmeter to terminal 6 (AMSW) and the negative (-) tester probe to terminal 9 (GND), then check
the voltage.
If the result is not as specified, replace the air conditioning control assembly.
