The required location of the malfunction indicator lamp is specified in the TSD.

The check-engine light, formally known as a malfunction indicator lamp, is an indication of a failure somewhere, and the problem is often emissions related.

Malfunction indicator lamp (MIL)

A malfunction indicator lamp (MIL), also known as a check engine light, is a tell-tale to indicate malfunction of a computerized engine management system.

When this happens, engine performance will often decrease significantly, engine emissions will be greatly increased, and usually the Malfunction Indicator Lamp (MIL) will illuminate.

It is expected that all the existing towing vehicles not equipped with ABS will be replaced by the year 2010, after which date the exterior ABS malfunction indicator lamp will no longer be required.

A "malfunction indicator lamp" (MIL) or "check engine light" (CEL) illuminates, usually in red, amber, or yellow, to indicate malfunction or service required in the computerized engine management system.

If both sensors show the same output or the rear O is "switching", the computer recognizes that the catalytic converter either is not functioning or has been removed, and will operate a malfunction indicator lamp and affect engine performance.

The TCU provides information about the health of the transmission, such as clutch wear indicators and shift pressures, and can raise trouble codes and set the malfunction indicator lamp on the instrument cluster if a serious problem is found.

Answer: We've had a number of queries like this and the important thing to note is that; if an SRS Malfunction Indicator Lamp (MIL) is indicating a system malfunction then it is an MOT fail.

Furthermore, new trailers and trailer converter dollies manufactured before March 1, 2010, will be required to have an exterior ABS malfunction indicator lamp that conformed to the photometric requirements of the applicable Society of Automotive Engineers (SAE) standard.

An exterior ABS malfunction indicator lamp is necessary because a new trailer or dolly may be towed by a tractor or single-unit vehicle that does not have an indicator to signal the malfunction of the ABS on a towed vehicle.

This function would be similar to the check engine light on a car.

I don't know who told the guy above to ignore a check engine light But come on!

Then another guy came in with a Mercedes and didn't know why the check engine light was on.

If the check engine light is on, have it checked.

Owners may be alerted to the problem by the check engine light.

I left the lot, not but three hours later the check engine light went on," Sterling said.

Minority Report Your check engine light just came on again.

Or even something like: "My check engine light comes on and I smile."

So take the Check Engine light seriously, even if your car appears to be running fine.

This could raise the temperature of the coolant and set off the check engine light.

It's as irritating as a check engine light, I tell you.

These days, some cars check engine light will come on if your windshield washer fluid is low.

"It's like the check engine light on the dashboard.

The check engine light is not restricted to the engine, it can also indicate transmission problems.

Every body's check engine light is on.

I also have my VTM and check engine lights on.

If you have a persistent Check Engine light, a new oxygen sensor might just solve your problem.

This can cause a misfire, rough running and the Check Engine light to illuminate.

"Our algorithms can be used for repair and maintenance, following through something like the check engine light in the car," explains Niroumand.

The Button is usually located on the gearshift and locks off when the check engine light comes on for any other reason.

Get stats on your driving, find your car in the parking lot, and learn why that check engine light is on.

"It means they were tripped in the past, but it might require two faults to illuminate the check engine light," he says.

She fails to service her vehicle regularly, and ignores her check engine light, which has been mentioned in multiple episodes.

Welch likens early screening to the check engine light on a car, occasionally picking up abnormalities that don't affect the vehicle's performance.

In most modern engines, disabling the EGR system will cause the computer to display a check engine light.