PassoFix
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Warning lights

What each light in the meter means, how serious it is, and what to do. Most lights come on for a few seconds when you turn the key to ON — that is a bulb check and is normal.

Stop safely nowGet it checked soonInformation only

Brake warning light

Red Stop safely now◔ double-check
What it meansParking brake is on, or brake fluid has dropped to the MIN line.
What to doRelease the parking brake. If it stays on, or comes on while driving, press the brake pedal firmly, stop in a safe place and check the brake fluid and for leaks. Do not drive on until checked.

Oil pressure warning light

Red Stop safely now◔ double-check
What it meansEngine oil pressure is too low while the engine runs.
What to doStop the engine at once. Check the oil level with the dipstick. This light does not show oil level. Get the car checked before driving on: running with low oil pressure can damage the engine.

Battery charge warning light

Red Stop safely now◔ double-check
What it meansFault in the charging system (alternator, belt or wiring).
What to doSwitch off A/C, blower and radio. Stop and check whether the drive belt is loose or broken. Do not keep driving with a broken belt: the engine can overheat.

Airbag (SRS) warning light

Red Get it checked soon◔ double-check
What it meansFault in the airbag system. A half-fitted airbag ECU connector also keeps it on.
What to doAirbags may not work in a crash. Get the SRS checked by a workshop with a scanner. Do not test airbag parts with a test lamp or an ordinary meter: its current can set off the airbag.

Seat belt reminder

Red Get it checked soon◔ double-check
What it meansDriver seat belt is not fastened. The light flashes until it is fastened; at 20 km/h or more a buzzer also sounds.
What to doFasten the seat belt.

Low fuel warning light

Amber Get it checked soon◔ double-check
What it meansAbout 7.5 litres or less fuel left. It flashes faster as fuel drops.
What to doFill up soon. Running dry can cause misfire and damage the catalytic converter.

Door open warning light

Red Information only◔ double-check
What it meansA door is open or not fully closed.
What to doClose all doors properly.

High beam indicator

Blue Information only◔ double-check
What it meansHeadlights are on high beam.
What to doDip the lights for oncoming traffic.

Symbols are our own drawings and may look slightly different from your meter. Not every car has every light; it depends on grade and options.

Scanner guide

Scanner guide: Passo

You can read the check-engine code on the Passo without any scanner, using the blink code. A scanner is optional.

Blink code: a paper clip in the DLC socket
Works

With the engine off, bridge terminals 5 and 13 with a short wire, turn the key ON (engine off) and count the check-engine light flashes (long = tens, short = units). Match the number to the code list.

Cheap ELM327 + Torque or Car Scanner app
May work

Works only if the car speaks standard OBD-II; older Japanese imports may not connect. If it fails, use the blink code.

Workshop multi-brand scanner
Works best

The easy way if you do not want to do it yourself.

Where is the socket: White 16-pin socket (DLC) under the dash near the steering column.

What it can read:

  • Engine (check-engine light) fault codes: blink code or scanner.

Good to know:

  • See Fault codes on this guide for the full blink-code steps and the code list.
  • No scanner needed for the oil, battery or handbrake light: they come from a simple switch or sensor. Check the oil level, drive belt / battery terminals and brake fluid first.

Source: UstadFix owner notes