Section 355 (Power Source): Inspection
WARNING: This page is about a different car, the 2004 Lexus GS 430 and 2004 Lexus GS 300. However, it is still accessible from the selected car via links, so may be relevant.
- INSPECT ENGINE ROOM NO. 1 JUNCTION BLOCK CIRCUIT
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
- Remove the fuse from the junction block and inspect the connector on junction block side.TESTER CONNECTION SPECIFIED CONDITION
Fuse Tester connection Condition Specified condition MAIN 2 - Ground Constant Battery positive voltage ABS NO. 1 : 4 - Ground Constant Battery positive voltage ALT 6 - Ground Constant Battery positive voltage ABS 8 - Ground Constant Battery positive voltage H-LP CLN 10 - Ground Constant Battery positive voltage RAD NO. 1 12 - Ground Constant Battery positive voltage ALT-S 14 - Ground Constant Battery positive voltage EFI 16 - Ground Constant Battery positive voltage TURN HAZ 18 - Ground Constant Battery positive voltage TEL 20 - Ground Constant Battery positive voltage AM2 22 - Ground Constant Battery positive voltage ETCS 24 - Ground Constant Battery positive voltage HORN 26 - Ground Constant Battery positive voltage D FR DOOR 28 - Ground Constant Battery positive voltage P FR DOOR 30 - Ground Constant Battery positive voltage ECU-B1 32 - Ground Constant Battery positive voltage HTR 33 - Ground Constant Battery positive voltage FAN MAIN 35 - Ground Constant Battery positive voltage CDS FAN 37 - Ground Ignition switch ON Battery positive voltage RAD FAN 39 - Ground Ignition switch ON Battery positive voltage H-LP R LWR 41 - Ground Light control switch HEAD Battery positive voltage H-LP L LWR 43 - Ground Light control switch HEAD Battery positive voltage D.R.L No. 1 45 - Ground Light control switch HEAD Battery positive voltage D.R.L No. 2 49 - Ground Light control switch HEAD Battery positive voltage If the circuit is not as specified, inspect the circuits connected to other parts.
- Remove the relay from the junction block and inspect the connector on junction block side.
TESTER CONNECTION SPECIFIED CONDITIONRelay Tester connection Condition Specified condition H-LP 51 - Ground Constant Battery positive voltage H-LP 53 - Ground Constant Battery positive voltage ST 55 - Ground Constant Continuity ST 58 - Ground Constant Battery positive voltage EFI MAIN 60 - Ground Constant Continuity EFI MAIN 62 - Ground Constant Battery positive voltage ENG MAIN 63 - Ground Constant Battery positive voltage ENG MAIN 66 - Ground Constant Continuity If the circuit is not as specified, inspect the circuits connected to other parts.
- Remove the fuse from the junction block and inspect the connector on junction block side.
- INSPECT ENGINE ROOM NO. 3 RELAY BLOCK CIRCUIT
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Remove the relay from the relay block and inspect the connector on relay block side.
TESTER CONNECTION SPECIFIED CONDITIONFuse Tester connection Condition Specified condition FAN NO. 1 3 - Ground Ignition switch ON Battery positive voltage FAN NO. 2 8 - Ground Ignition switch ON Battery positive voltage A/C COMP 13 - Ground Ignition switch ON Battery positive voltage FAN NO. 3 17 - Ground Ignition switch ON Battery positive voltage DIMMER 20 - Ground Constant Battery positive voltage If the circuit is not as specified, inspect the circuits connected to other parts.
- INSPECT ENGINE ROOM NO. 2 RELAY BLOCK CIRCUIT
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Remove the relay from the relay block and inspect the connector on relay block side.
TESTER CONNECTION SPECIFIED CONDITIONRelay Tester connection Condition Specified condition HORN 1 - Ground Constant Battery positive voltage HORN 2 - Ground Horn switch ON Continuity HORN 4 - Ground Constant Battery positive voltage ABS SOL 5 - Ground Constant Battery positive voltage ABS SOL 6 - Ground Constant Continuity TRC MTR 11 - Ground Constant Battery positive voltage ABS MTR 15 - Ground Constant Battery positive voltage If the circuit is not as specified, inspect the circuits connected to other parts.
- INSPECT DRIVER SIDE JUNCTION BLOCK CIRCUIT
- Remove the fuse from the junction block and inspect the connector on junction block side.TESTER CONNECTION SPECIFIED CONDITION
Fuse Tester connection Condition Specified condition AM1 1 - Ground Constant Battery positive voltage WASHER 3 - Ground Ignition switch ON Battery positive voltage FOG 5 - Ground Constant Battery positive voltage TAIL 7 - Ground Light control switch TAIL or HEAD Battery positive voltage GAUGE 11 - Ground Ignition switch ON Battery positive voltage FUEL OPN 13 - Ground Constant Battery positive voltage PANEL 17 - Ground Light control switch TAIL or HEAD Battery positive voltage HEATER 19 - Ground Ignition switch ON Battery positive voltage SRS-B 21 - Ground Constant Battery positive voltage DP/SEAT 23 - Ground Constant Battery positive voltage RADIO NO. 2 25 - Ground Ignition switch ACC or ON Battery positive voltage WIPER 27 - Ground Ignition switch ON Battery positive voltage OBD 29 - Ground Constant Battery positive voltage STOP 31 - Ground Constant Battery positive voltage CIG 33 - Ground Ignition switch ACC or ON Battery positive voltage ECU-IG 35 - Ground Ignition switch ON Battery positive voltage ST 37 - Ground Ignition switch ON Battery positive voltage IGN 39 - Ground Ignition switch ON Battery positive voltage D RR DOOR 41 - Ground Constant Battery positive voltage If the circuit is not as specified, inspect the circuits connected to other parts.
- Remove the relay from the junction block and inspect the connector on junction block side.
TESTER CONNECTION SPECIFIED CONDITIONRelay Tester connection Condition Specified condition Fog light 43 - Ground Constant Battery positive voltage Fog light 44 - Ground Constant Continuity Fog light 46 - Ground Light control switch HEAD Battery positive voltage Taillight 47 - Ground Constant Battery positive voltage Taillight 48 - Ground Constant Continuity Taillight 50 - Ground Constant Continuity If the circuit is not as specified, inspect the circuits connected to other parts.
- Remove the fuse from the junction block and inspect the connector on junction block side.
- INSPECT PASSENGER SIDE JUNCTION BLOCK CIRCUIT
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
- Remove the fuse from the junction block and inspect the connector on junction block side.TESTER CONNECTION SPECIFIED CONDITION
Fuse Tester connection Condition Specified condition DEF 1 - Ground Constant Battery positive voltage MIR HTR 7 - Ground Ignition switch ON Battery positive voltage S/ROOF 13 - Ground Constant Battery positive voltage ECU-B3 15 - Ground Constant Battery positive voltage P P/SEAT 23 - Ground Constant Battery positive voltage DOME 25 - Ground Constant Battery positive voltage S-HTR 27 - Ground Ignition switch ON Battery positive voltage TV 31 - Ground Constant Battery positive voltage ECU-B2 33 - Ground Constant Battery positive voltage P FR DOOR 41 - Ground Constant Battery positive voltage If the circuit is not as specified, inspect the circuits connected to other parts.
- Remove the relay from the junction block and inspect the - connector on junction block side.
TESTER CONNECTION SPECIFIED CONDITIONRelay Tester connection Condition Specified condition Ignition Main 43 - Ground Ignition switch ON Battery positive voltage Mirror Heater 47 - Ground Ignition switch ON Battery positive voltage. Mirror Heater 50 - Ground Constant Battery positive Voltage If the circuit is hot as specified, inspect the circuits connected to other parts.
- Remove the fuse from the junction block and inspect the connector on junction block side.
- INSPECT PASSENGER COWL SIDE RELAY BLOCK CIRCUIT
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Remove the relay from the relay block and inspect the connector on relay block side.
TESTER CONNECTION SPECIFIED CONDITIONRelay Tester connection Condition Specified condition DEF 1 - Ground Constant Battery positive voltage HEATER 5 - Ground Constant Battery positive voltage If the circuit is not as specified, inspect the circuits connected to other parts.