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Home >> Toyota >> 1993 >> MR2 2.2 S, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes >> Diagnostic Code Charts >> Code 51/Test No. 11 - Switch Signal >> Probable Causes:
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Probable Causes:

To check throttle position sensor or circuit, see Code 41.

To check A/C switch signal, use the following procedure.

NOTE: To check A/C switch signal, use the following procedure.
CODE 51/TEST NO. 11-SWITCH SIGNAL TROUBLE

Terminal Trouble Condition STD Voltage
A/C-E1 No Voltage Air Conditioning ON 9-14V
Fig 1: Code 51/Test No. 11 Schematic - Switch Signal
G93G79489Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 2: Code 51/Test No. 11 Flow Chart - Switch Signal
G93J79490Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002