Rear Running Lights

Engine compartment

Toyota Matrix - fuse box - engine compartment

Instrument panel

Toyota Matrix - fuse box - instrument panel

Fuses (type A)

Fuse Ampere rating Description 1 FOG 15 Front fog lights 2 HEAD LH UPR 10 Left?hand headlight (high beam) 3 HEAD RH UPR 10 Right?hand headlight (high beam), high beam indicator light 4 SPARE 30 Spare fuse 5 SPARE 15 Spare fuse 6 SPARE 10 Spare fuse 7 ETCS (1ZZ?FE engine with two?wheel drive models only) 10 Electronic throttle control system 8 AMP 30 Car audio system 9 MAIN 30 Starting system, "AM2" fuse 10 DOME 15 Car audio system, clock, personal lights, interior light, trunk light, open door warning light, wireless remote control system 11 HORN 10 Horn 12 HAZARD 10 Emergency flashers, turn signal lights 13 EFI 15 Multiport fuel injection system/sequential multiport fuel injection system, emission control system, "EFI" fuse 14 ALT?S 5 Charging system 15 HEAD LH LWR 10 Left?hand headlight (low beam) 16 HEAD RH LWR 10 Right?hand headlight (low beam) 17 EFI2 (1ZZ?FE engine with two? wheel drive models only) 15 Multiport fuel injection system/ sequential multiport fuel injection system, emission control system 18 TAIL 15 Tail lights, license plate lights, instrument panel lights, instrument cluster lights, clock 19 OBD 7,5 On?board diagnosis system 20 WIPER 25 Windshield wipers 21 AM2 15 Charging system, multiport fuel injection system/sequential multiport fuel injection system, starting system, SRS airbag system 22 STOP 15 Stop lights, high mounted stoplight, anti?lock brake system, shift lock control system, multiport fuel injection system/sequential multiport fuel injection system, cruise control system 23 DOOR 25 Power door lock system, glass hatch opener switch 24 AM1 25 "CIG" fuse 25 ECU?IG 10 Electric cooling fan, anti?lock brake system, traction control system, vehicle stability control system, brake assist system, shift lock control system, cruise control system 26 RR WIPER 15 Rear window wiper 27 A/C 10 Air conditioning system 28 INV 15 Power outlet (115 VAC) 29 P/POINT 15 Power outlet (12 VDC/ in the rear console box) 30 ECU?B 10 Daytime running light system 31 CIG 15 Power outlet (on the instrument panel) or cigarette lighter, car audio system, clock, power rear view mirror control, shift lock control system 32 GAUGE 10 Gauges and meters, air conditioning system, daytime running light system, charging system, auto anti?glare inside rear view mirror, power windows, cruise control system, rear window defogger, back?up lights, front passenger's seat belt reminder light 33 WASHER 15 Windshield washer, rear window washer 34 M?HTR/DEF I?UP 10 Engine control system

Fuses (type B)

Fuse Ampere rating Description 35 ABS NO.1 30 Anti?lock brake system, vehicle stability control system, traction control system, brake assist system 36 RDI FAN 30 Electric cooling fan 37 ABS NO.2 40 (without vehicle stability
control system) Anti?lock brake system 50 (with vehicle stability
control system) Anti?lock brake system, vehicle stability control system, traction control system, brake assist system 38 HEAD MAIN 40 "HEAD LH UPR", "HEAD RH UPR", "HEAD LH LWR" and "HEAD RH LWR" fuses 39 AIR PUMP 50 (1ZZ?FE engine with four?wheel drive models and 2Z ?GE engine only) Emission control system 40 HTR 40 Air conditioning system 41 DEF 30 Rear window defogger, "M?HTR/DEF I?UP" fuse 42 POWER 30 Power windows, electric moon roof

Fuses (type C)

Fuse Ampere rating [A] Description 43 ALT 100 Charging system, "ABS NO.1", "ABS NO.2", "RDI FAN", "FOG", "HTR", "AM1", "POWER", "DOOR", "ECU?B", "TAIL", "STOP", "P/POINT", "INV" and "OBD" fuses WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.

FUSE PANEL LOCATION
The fuse panel is located in the engine compartment. A label on the inside of the cover lists the fuse amperage and circuits protected.
volvo 850 fuses fuse panel layout service repair manual
FUSE PANEL IDENTIFICATION
Fig. 1: Fuse Panel Identification
Courtesy of Volvo Cars of North America.
WARNING: Always disconnect battery ground cable before servicing "high-current fuses. It is recommended that "high-current" fuses be replaced by a qualified technician.
* 1 - 15 Amp
Fuel Injection, Distributor Ignition, Automatic Gearbox
* 2 - 15 Amp
Fuel Pump, Alarm System
* 3 - 10 Amp
Courtesy Lights, Oil Level Sensor
* 4 - Not Used (1993-95)
* 4 - 10 Amp (1996)
Electronic Start Inhibitor (Immobilizer)
* 5 - 30 Amp
ECC Blower (Speed 4)
* 6 - 25 Amp
Central Locking System, Alarm
* 7 - 15 Amp
Audio System (Amplifier)
* 8 - 25 Amp (1993-95)
Power Antenna, Trailer Connector
* 8 - 40 Amp (1996)
Electronic Start Inhibitor (Immobilizer)
* 9 - 30 Amp
ABS, Traction Control System
* 10 - Not Used (1993-95)
* 10 - 15 Amp (1996)
Heated Rear Seat (If Equipped)
* 11 - 30 Amp
Heated Rear Window & Side Mirrors
* 12 - 10 Amp
Brake Lights
* 13 - 15 Amp
Hazard Flashers, Headlight Flashers, Alarm
* 14 - 30 Amp
ABS, Traction Control System
* 15 - 10 Amp (1993-95)
Audio System, Courtesy Lights, Door Open Light, Trunk Light, Glove Box Light, Remote Control Central Locking System,
Oil Level Sensor, Seat Belt Reminder
* 15 - 10 Amp (1996)
Audio System, Courtesy Lights, Door Open Light, Trunk Light, Glove Box Light, Remote Control Central Locking System,
Oil Level Sensor, Seat Belt Reminder, Data Link Connector
* 16 - 30 Amp (1993-95) Accessories
* 16 - 30 Amp (1996)
Power Antenna, Trailer Connector, Accessories
* 17 - 10 Amp
Key Reminder
* 18 - 25 Amp (1993-95)
Heated Front Seats, Power Mirrors
* 18 - 15 Amp (1996) Front Fog Lamps
* 19 - 15 Amp
Left High Beam Headlight
* 20 - 15 Amp
Right High Beam Headlight, High Beam Indicator
* 21 - 15 Amp
Left Low Beam Headlight
* 22 - 15 Amp
Right Low Beam Headlight
* 23 - 10 Amp
Left Parking Light, License Light
* 24 - 10 Amp
Right Parking Light, Bulb Failure Warning Sensor
* 25 - 10 Amp
Rear Fog Lamps, Fog Lamp Indicator
* 26 - Not Used (1993-95)
* 26 - 25 Amp (1996)
Heated Front Seats, Power Mirrors
* 27 - 15 Amp
Back-Up Lights, Turn Signals
* 28 - 10 Amp
Cruise Control, Heated Rear Window, Seat Belt Reminder Light, Shiftlock, Bulb Failure Warning Sensor, Heated Rear Seat
* 29 - 15 Amp
ABS, Traction Control System
* 30 - 10 Amp
Cigarette Lighter
* 31 - 25 Amp
ECC, ECC Blower (Speeds 1-3)
* 32 - 10 Amp
Audio System, Remote Controlled Central Locking System
* 33 - 15 Amp (1993-95)
Power Seats, OBD Test Socket, Tailgate Washer/Wipe (Wagon)
* 33 - 15 Amp (1996)
Power Seats, Tailgate Washer/Wipe (Wagon)
* 34 - 25 Amp
Windshield Wiper/Washer, Horn, Headlight Washer/Wiper
* 35 - 10 Amp
Instrument Lights, Sun Roof, Traction Control System
* 36 - Not Used
* 37 - Circuit Breaker
Power Windows, Power Sun Roof
* 38 - Not Used
* 39 - Circuit Breaker
Drivers Power Seat
* 40 - Circuit Breaker
Passengers Power Seat
RELAY PANEL LOCATION
The relay panel is located at the left corner of the instrument panel.
i copied this off a volvo site Hope this helps

fuses blow because of dead shorts or excess current draw
to blow a 15 amp fuse indicates a dead short
by disconnecting the rear lights , the problem is in something else you have replaced
could be a problem in the head light wiring

why not check the rear brake light ground 1st . also check that the rear connector has come apart

1. 15 AMP Dome Lamps, Power mirrors (on 2 door models only), radio memory
2. 6 AMP front washer/ wiper
3. not used
4. 15 AMP stop lamps, 4 way flasher
5. 15 AMP back-up lamps, daytime running lights, rear defrost, turn lamps and turn indicator
6. 10 AMP speed control
7. 15 AMP instrument cluster warning lamps (explorer limited model #7 is 15 AMP heated outside mirrors)
8. 20 AMP horn
9. 10 AMP air conditioner switches, clutch coil
10. 15 AMP Park/ license plate lamps, trailer tow connection
11. 15 AMP radio
12. 20 AMP cigarette lighter, flash bright lights(from signal arm)
13. 10 AMP instrument panel illumination
14. 30 AMP power windows
15. 10 AMP ABS module
16. 20 AMP premium radio amplifier
17. 15 AMP rear washer/ wiper (explorer limited model #17 is 15 AMP warning gauges and lamps, 4 wheel drive)
18. 15 AMP heated exhaust gas oxygen

that's you list. hope it helps.

2 fuses, for park lamps, 6C 25 amp and 8C 10 amp

Cavity
1 20 amp yellow hazard flashers
2 10 amp red heated mirrors
3 20 amp yellow body lights
4 not used
5 20 amp yellow windshield wipers
6 20 amp yellow turn signal lights
7 10 amp red radio
8 not used
9 7.5 amp violet illumination lights
10 2 amp pink left tail lights
11 2 amp right tail lights
12 not used
13 20 amp yellow rear window wiper/washer
14 2 amp pink speed control
15 10 amp red gauges, warning lights
16 not used
17 10 amp red left low beam headlight
18 10 amp red right low beam headlight
19 20 amp yellow stop lights
20 20 amp yellow rear a/c heat
21 20 amp yellow fog lights
22 20 amp yellow park lights
23 20 amp yellow battery
24 20 amp yellow back up lights
25 circuit breaker power windows,power vent windows
26 30 amp lt. green a/c heater blower motor
27 circuit breaker power door locks
28 not used

Below is a listing of which fuse corresponds with which circuit:

1 - 10 Amp - Transmission Controller, Gauges, Autostick
2 - 10 Amp - Right High Beam Headlight
3 - 10 Amp - Left High Beam Headlight
4 - 10 Amp - Radio, CD Player
5 - 10 Amp - Washer Motor
6 - 15 Amp - Power Outlet
7 - 20 Amp - Tail, License, Parking, Illumination Lights, Instrument Cluster
8 - 10 Amp - Airbag
9 - 10 Amp - Turn Signal Lights, Turn Signal/Hazard Indicator
10 - 15 Amp - Right Low Beam
11 - 20 Amp - High Beam Relay, High Beam Indicator, High Beam Switch
12 - 15 Amp - Left Low Beam Headlight
13 - 10 Amp - Fuel Pump Relay, Power Train Control Module
14 - 10 Amp - Cluster, Day/Night Mirror,Sunroof, Overhead Console, Garage Door Opener, Body Control Module
15 - 10 Amp - Daytime Running Light Module (Canada)
16 - 20 Amp - Fog Light Indicator
17 - 10 Amp - ABS Control, Back Up Lights, Daytime Running Lights, A/C Heater Control Cavity Fuse Circuits
18 - 20 Amp - Power Amplifier, Horn
19 - 15 Amp - Overhead Console, Garage Door Opener, Trunk, Overhead, Rear Reading, and Visor Vanity Lights, Trunk Release Solenoid, Power Mirrors, Power Door Locks, Body Control Module, Aspirator Motor
20 - 20 Amp - Brake Lights
21 - 10 Amp - Leak Detection Pump, Low Rad Relay, High Rad Relay, A/C Clutch Relay
22 - 10 Amp - Airbag
23 - 30 Amp - Blower Motor, ATC Power Module
24 - 20 Amp - Power Window Motors
25 - 20 Amp - Power Door Lock Motors, Power Seats

Fuse #8, #18 and #22.

Below is a listing of which fuse corresponds with which circuit:

1 - 10 Amp - Transmission Controller, Gauges, Autostick
2 - 10 Amp - Right High Beam Headlight
3 - 10 Amp - Left High Beam Headlight
4 - 10 Amp - Radio, CD Player
5 - 10 Amp - Washer Motor
6 - 15 Amp - Power Outlet
7 - 20 Amp - Tail, License, Parking, Illumination Lights, Instrument Cluster
8 - 10 Amp - Airbag
9 - 10 Amp - Turn Signal Lights, Turn Signal/Hazard Indicator
10 - 15 Amp - Right Low Beam
11 - 20 Amp - High Beam Relay, High Beam Indicator, High Beam Switch
12 - 15 Amp - Left Low Beam Headlight
13 - 10 Amp - Fuel Pump Relay, Power Train Control Module
14 - 10 Amp - Cluster, Day/Night Mirror,Sunroof, Overhead Console, Garage Door Opener, Body Control Module
15 - 10 Amp - Daytime Running Light Module (Canada)
16 - 20 Amp - Fog Light Indicator
17 - 10 Amp - ABS Control, Back Up Lights, Daytime Running Lights, A/C Heater Control Cavity Fuse Circuits
18 - 20 Amp - Power Amplifier, Horn
19 - 15 Amp - Overhead Console, Garage Door Opener, Trunk, Overhead, Rear Reading, and Visor Vanity Lights, Trunk Release Solenoid, Power Mirrors, Power Door Locks, Body Control Module, Aspirator Motor
20 - 20 Amp - Brake Lights
21 - 10 Amp - Leak Detection Pump, Low Rad Relay, High Rad Relay, A/C Clutch Relay
22 - 10 Amp - Airbag
23 - 30 Amp - Blower Motor, ATC Power Module
24 - 20 Amp - Power Window Motors
25 - 20 Amp - Power Door Lock Motors, Power Seats

corvis: from your description, it still seems as though you have a blown fuse. I would venture to guess that you don't have instrument lights as well. You might want to recheck the fuse for this circuit and or replace ir with a new one just for grins. The fuse you are looking for is behind the coin tray, In looking at the fuse block, you have three rows arranged vertically, The one you want to remove and replace is on the far right row and it is the second fuse up from the bottom. It's a 10 amp fuse, red in color.
That circuit is served by that one fuse. You might also check to see if there is power to that fuse block at the terminal the fits in. It should be hot all the time.
There is also a Tail lamp relay, however, it doesn't address the other lights which makes me want to rule it out. Try what I have suggested first and let me know. Fuses can sometimes look good and be bad.