Land Cruiser URJ200 URJ202 GRJ200 VDJ200 - WINDOW / GLASS
WINDOW DEFOGGER SYSTEM (for Double Swing Out Type) - TERMINALS OF ECU
CHECK AIR CONDITIONING AMPLIFIER ASSEMBLY |
Disconnect the E81 air conditioning amplifier assembly connector.
Measure the resistance and voltage according to the value(s) in the table below.
Terminal No. (Symbol) | Wiring Color | Terminal Description | Condition | Specified Condition |
E81-1 (IG+) - E81-14 (GND) | G - W-B | Ignition power supply | Ignition switch ON | 11 to 14 V |
Ignition switch off | Below 1 V | |||
E81-21 (+B1) - E81-14 (GND) | R - W-B | Battery power source | Always | 11 to 14 V |
E81-14 (GND) - Body ground | W-B - Body ground | Ground | Always | Below 1 Ω |
If the result is not as specified, there may be a malfunction on the wire harness side.
Reconnect the E81 air conditioning amplifier assembly connector.
Measure the voltage according to the value(s) in the table below.
Terminal No. (Symbol) | Wiring Color | Terminal Description | Condition | Specified Condition |
E81-38 (RDEF) - E81-14 (GND) | G - W-B | Defogger relay | Ignition switch ON and defogger switch off | 11 to 14 V |
Ignition switch ON and defogger switch on | Below 1 V |
If the result is not as specified, the air conditioning amplifier assembly or fuse may have a malfunction.
CHECK AIR CONDITIONING CONTROL ASSEMBLY |

Disconnect the F10 air conditioning control assembly connector.
Measure the resistance and voltage according to the value(s) in the table below.
Terminal No. (Symbol) | Wiring Color | Terminal Description | Condition | Specified Condition |
F10-7 (IG+) - F10-1 (GND) | G - W-B | Ignition power supply | Ignition switch ON | 11 to 14 V |
Ignition switch off | Below 1 V | |||
F10-1 (GND) - Body ground | W-B - Body ground | Ground | Always | Below 1 Ω |
If the result is not as specified, there may be a malfunction on the wire harness side.