Window Defogger System (For Manual Air Conditioning System) Terminals Of Ecu

Disconnect the E70 heater control (blower switch) connector.

1. Measure the voltage according to the value(s) in the table below.
   
   

   Standard Voltage:

   
   

   Tester Connection	Wiring Color	Terminal Description	Condition	Specified Condition
   E70-2 (RDEF) - E70-5 (E)	B - W-B*1 BE - W-B*2	Rear defogger signal	Ignition switch ON, Rear window defogger switch OFF	11 to 14 V
   			Ignition switch ON, Rear window defogger switch ON	Below 1 V
   E70-3 (IG+) - E70-5 (E)	Y - W-B*1 R - W-B*2	Power source (IG)	Ignition switch ON	11 to 14 V
   			Ignition switch off	Below 1 V

   1. *1: for TMC Made
      
   2. *2: Except for TMC made
      
   If the result is not as specified, there may be a malfunction in the wire harness.
   

Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection	Wiring Color	Terminal Description	Condition	Specified Condition
E70-5 (E) - Body ground	W-B - Body ground	Ground	Always	Below 1 Ω

Disconnect the 2F, 2G and 2Q instrument panel junction block connectors.

Measure the voltage according to the value(s) in the table below.

Standard Voltage:

Tester Connection	Wiring Color	Terminal Description	Condition	Specified Condition
2G-1 - Body ground	W - Body ground	Power source	Always	11 to 14 V
2Q-12 - Body ground	B - Body ground*1 BE - Body ground*2	DEF Relay operation signal	Ignition switch ON, Rear window defogger switch OFF	11 to 14 V
			Ignition switch ON, Rear window defogger switch ON	Below 1 V
2F-2 - Body ground	B - Body ground	Defogger wire operation signal	Ignition switch ON, Rear window defogger switch OFF	Below 1 V
			Ignition switch ON, Rear window defogger switch ON	11 to 14 V

1. *1: for TMC Made
   
2. *2: Except for TMC made