Instrument Panel Junction Block & Relays
WARNING: This page is about a different car, the 2002 Toyota Tundra. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
Instrument panel junction block is located behind instrument panel, to left of steering column. See Fig 1. For description of electrical power distribution, see Figure.
Component Locations
- The daytime running light main relay is located behind center console. See Fig 1. For wiring diagram of daytime running light main relay circuit, see HEADLIGHTS in SYSTEM WIRING DIAGRAMS article.
- The driver's side junction block is located on left side of dash. See Fig 1. Junction block contains fuses and relays. See Fig 3 and Fig 4 . For identification of protected circuits, see table below. For wiring diagrams of junction block circuits, see SYSTEM WIRING DIAGRAMS article.
- Integration relay is located behind left end of dash. See Fig 1. For wiring diagram of integration relay circuit, see SYSTEM WIRING DIAGRAMS article.
- On V6 (3.4L) models, transmission control relay is located above passenger side kick panel. See Fig 1. For wiring diagram of transmission control relay circuit, see TRANSMISSION in SYSTEM WIRING DIAGRAMS article.
- Power relay is located behind left side of dash. See Fig 1. For wiring diagram of power relay circuit, see SYSTEM WIRING DIAGRAMS article.
INSTRUMENT PANEL RELAY IDENTIFICATION
| RELAY DESCRIPTION |
|---|
| Integration Relay |
| Power Relay |
| Daytime Running Light Relay (Main) |
| 4WD Control ECU (4.7L) Transmission Control Relay (3.4L) |
INSTRUMENT PANEL RELAY IDENTIFICATION
| RELAY NUMBER | RELAY DESCRIPTION |
|---|---|
| 21. | Back-Up Light Relay (A/T) |
DRIVER'S SIDE JUNCTION BLOCK RELAY IDENTIFICATION
| RELAY DESCRIPTION |
|---|
| Integration Relay |
DRIVER'S SIDE JUNCTION BLOCK RELAY IDENTIFICATION
| RELAY DESCRIPTION |
|---|
| Power Relay |
DRIVER'S SIDE JUNCTION BLOCK FUSE IDENTIFICATION LEGEND
| Fuse | System | |
|---|---|---|
| 5A | CARGO LP | Cargo Light Integration Control and Panel |
| 5A | ECU-IG | ABS Cruise Control (5VZ-FE) Light Auto Turn Off Power Window |
| 5A | ECU-B | Combination Meter SRS |
| 5A | IGN | Charging Combination Meter Cruise Control (2UZ-FE) Electronically Controlled Transmission and A/T Indicator (2UZ-FE) Electronically Controlled Transmission and A/T Indicator (5VZ-FE) Engine Control (2UZ-FE) Engine Control (5VZ-FE) SRS |
| 5A | STA | Combination Meter Electronically Controlled Transmission and A/T Indicator (2UZ-FE) Electronically Controlled Transmission and A/T Indicator (5VZ-FE) Engine Control (2UZ-FE) Engine Control (5VZ-FE) Starting |
| 5A | TURN | Trailer Towing Turn Signal and Hazard Warning Light |
| 10A | GAUGE | ABS Air Conditioning Back-Up Light Cargo Light Charging Combination Meter Cruise Control (2UZ-FE) Cruise Control (5VZ-FE) Door Lock Control Electronically Controlled Transmission and A/T Indicator (2UZ-FE) Electronically Controlled Transmission and A/T Indicator (5VZ-FE) Engine Control (2UZ-FE) Engine Control (5VZ-FE) Headlight (w/ Daytime Running Light) |
| 10A | GAUGE | Integration Control and Panel Interior Light Key Reminder and Seat Belt Warning Starting Trailer Towing Wiper and Washer (w/ Int Time SW Mechanism) Wiper and Washer (w/o Int Time SW Mechanism) 4WD (2UZ-FE) 4WD (5VZ-FE) |
| 15A | ACC | Back-Up Light Cigarette Lighter and Power Outlet Clock Cruise Control (2UZ-FE) Cruise Control (5VZ-FE) Electronically Controlled Transmission and A/T Indicator (2UZ-FE) Electronically Controlled Transmission and A/T Indicator (5VZ-FE) Integration Control and Panel Radio and Player Remote Control Mirror SRS 4WD (2UZ-FE) 4WD (5VZ-FE) |
| 15A | STOP | ABS Cruise Control (2UZ-FE) Cruise Control (5VZ-FE) Electronically Controlled Transmission and A/T Indicator (2UZ-FE) Electronically Controlled Transmission and A/T Indicator (5VZ-FE) Engine Control (2UZ-FE) Engine Control (5VZ-FE) Stop Light Trailer Towing |
| 15A | TAIL | Clock Engine Control (2UZ-FE) Illumination Integration Control and Panel Light Auto Turn Off Taillight Trailer Towing |
| 20A | 4WD | 4WD (2UZ-FE) 4WD (5VZ-FE) |
| 20A | HORN-HAZ | Horn Trailer Towing Turn Signal and Hazard Warning Light |
| 20A | WIP | Wiper and Washer (w/ Int Time SW Mechanism) Wiper and Washer (w/o Int Time SW Mechanism) |
| 30A | POWER | Door Lock Control Light Auto Turn Off Power Seat Power Window |