Help - Gauge Fuse Blowing

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The 10A GAUGE fuse contributes power to many circuits. It would be reasonable to start by looking at the circuits located near known accident damage, such as taillights, back-up lights and rear window defroster. Here is the full list:

ABS, TRAC and VSC

Air Conditioning

Back–Up Light

Combination Meter

Cruise Control

Engine Control

EPS

Headlight

Headlight Beam Level Control

Key Reminder

Luggage Compartment Door Opener

Multi–Display and Audio System (Built–in Amplifier)

Multi–Display and Audio System (Separate Amplifier)

Power Window

Push Button Start System and Hybrid Vehicle Immobiliser System

Rear Window Defogger and Mirror Heater

Seat Belt Warning

Shift Control System

Smart Key System and

Wireless Door Lock Control (w/ Smart Key System)

SRS

Taillight and Illumination

Tire Pressure Warning System

TOYOTA Hybrid System

Turn Signal and Hazard Warning Light

 

I would really suspect one of the circuits in the back that is activated by the back up sequence.

It would likely be a wire that is rubbing somewhere on the grounded body of the car.

It has probably gotten worse due to a "sawing" action of the wire rubbing against the grounded body.


First, I'd unplug the multi-circuit connector to the back and test for continuity to ground with the end components disconnected.

If you have isolated the offending wire, I's check its routing of the starting at the instrument panel all the way back through the routing in the door sills to the back.

You can either cut and replace the offending wire or find the place where it is rubbing and insulate it with tape.

It is very time consuming and labor intensive, but anyone with basic electrical knowledge can do it.

Good luck!

 

These wire fault finding jobs are indeed time consuming. Many Toyota dealers will just go ahead and replace the whole harness, just to repair the situation. Very $$$. I might start with the section of the harness that goes under the rear hatch. If the back up light wire is the culprit, and you had damage to the bumper, it would seem suspect.