Window Defogger System (For Hatchback) Terminals Of Ecu

Vehicle Exterior. Yaris. Ncp93, 131
Window Glass. Yaris. Ncp93, 131

  1. CHECK NO. 2 HEATER CONTROL SUB-ASSEMBLY

Window Defogger System (For Hatchback) -- Terminals Of Ecu



CHECK NO. 2 HEATER CONTROL SUB-ASSEMBLY

Yaris. Ncp93, 131.Window Glass.Power Window Control System (For Sedan).Window Defogger System (For Hatchback) Terminals Of Ecu

  1. Disconnect the D129 No. 2 heater control sub-assembly connector.

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

    Terminal No. (Symbol)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    D129-1 (E) - Body ground
    		BR - Body ground
    		Ground
    		Always
    		Below 1 Ω
    D129-3 (IG+) - D129-1 (E)
    		V - BR
    		Ignition power supply
    		Ignition switch ON
    		11 to 14 V
    Ignition switch off
    		Below 1 V
    1. If the result is not as specified, there may be a malfunction on the wire harness side.

  3. Reconnect the No. 2 heater control sub-assembly connector.

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

    Terminal No. (Symbol)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    D129-2 (RDEF) - D129-1 (E)
    		B - BR
    		Rear window 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
    1. If the result is not as specified, the No. 2 heater control sub-assembly may have a malfunction.