B HOW TO USE THIS MANUAL The ground points circuit diagram shows the connections from all major parts to the respective ground points. When troubleshooting a faulty ground point, checking the system circuits which use a common ground may help you identify the problem ground quickly. The relationship between ground points ( EA , IB and IC shown below) can also be checked this way.
I GROUND POINT FAN MAIN Relay 5 W−B Cigarette Lighter W−B A/C Control Assembly FAN MAIN Relay 5 W−B E 3 O/D Main SW I 6 W−B Blower Motor A/C Relay No.2 5 W−B E 3 Clock A W−B W−B I 6 Blower SW A/C Relay No.3 5 W−B E 3 A W−B Parking Brake SW Radiator Fan Motor W−B E 3 Junction Connector J 1 Headlight Cleaner Relay W−B E 2 3B 7 W−B Combination Meter Headlight LH W−B E 4 W−B Headlight RH W−B E 5 I 2 3C 7 W−B W−B Combination SW Front Fog Light RH Front Turn Signal Light RH W−B W−B E 4 E 4 W−B 3D 1 W−B Cruise Control ECU Front Clearance Light RH W−B E 5 W−B Front Fog Light LH W−B W−B 3F 3 W−B Remote Control Mirror SW Front Turn Signal Light LH W−B W−B E 6 E 4 W−B Brake Fluid Level SW 3G 13 W−B Turn Signal Flasher Front Clearance Light LH W−B W−B 3E 5 W−B W−B I 2 Defogger SW W−B W−B W−B IA1 2 3E 6 W−B Door Lock Control SW W−B B 4 I 4 W−B I 2 W−B Combination SW Door Courtesy SW RH W−B B 4 W−B W−B W−B I 5 W−B Door Lock Motor RH W−B B 4 10 EA2 I 5 W−B W−B W−B ID1 15 Unlock Warning SW Door Lock Control Relay W−B B 5 I 5 W−B Power Window Master SW W−B EA B 5 W−B Power Window Control Relay Blower Resistor W−B W−B W−B IB1 8 B 5 W−B Door Courtesy SW LH Idle−Up SW I 4 I 8 B 5 Door Lock Control SW A/C Amplifier W−B W−B W−B W−B Door Lock Motor LH 4 4 I 5 W−B(4A−GZE) Fuel Control SW Radio and Player BR 4 4 W−B I 5 W−B W−B IC3 3 Woofer Speaker Amplifier HEATER Relay 4 W−B BR Combination Meter Auto Antenna Motor BR BR 4 BA1 5 I 3 I 3 BR BR Combination Meter 4 W−B BR BR Fuel Sender W−B IB IC ∗ The system shown here is an EXAMPLE ONLY.
It is different to the actual circuit shown in the SYSTEM CIRCUITS SECTION. 2005 LEXUS LX 470 (EWD603U) 8 W−B A