2. TPMS Warning Light
What does the TPMS status/warning light indicate?
The TPMS warning light is used to communicate a TPMS status to the driver.
If the light is off...everything is OK. If it's on...there's a problem. It's that simple.
TPMS LIGHT |
MEANING |
OFF |
All 4 registered sensors are transmitting data…and all 4 tires have adequate pressure |
ON |
One or more tires have low air pressure...OR...there is a TPMS system malfunction |
My TPMS light is on. Is the problem low tire pressure or a system malfunction?
To determine which problem you have, you need to watch the TPMS light when you first start the engine. After starting the vehicle, does the TPMS light stay on constantly or does it immediately start flashing? Here's how to tell which issue you have...
TPMS PROBLEM |
TPMS LIGHT BEHAVIOR |
Low Tire Pressure |
Remains on constantly from the moment the engine starts |
TPMS Malfunction |
Flashes for 1 minute after the engine starts and then remains on constantly |
What typical problems cause the TPMS warning light to turn on?
Below are the 3 most common problems that cause the TPMS light to turn on.
The diagrams represent what each problem looks like inside the TPMS computer.
1. LOW TIRE PRESSURE
TPMS Light |
Remains ON constantly from the moment you start the car |
Explanation |
All 4 registered sensors are transmitting data…but one or more tires have low pressure |
Fix |
Check the air pressure in all 4 tires and inflate as needed |
2. TPMS SENSOR MALFUNCTION
TPMS Light |
FLASHES for 1 minute after you start the car…and remains on CONSTANTLY after that |
Explanation |
The computer is not receiving a signal from all 4 registered sensor IDs because a TPMS sensor is not transmitting (the sensor battery has died or the sensor is malfunctioning) |
Fix |
Use a TPMS tool to determine which sensor is not transmitting.
Clone a replacement sensor using the sensor ID of the failed sensor.
Remove the failed sensor and install the replacement sensor you just cloned. |
3. TPMS SENSOR NOT REGISTERED
TPMS Light |
FLASHES for 1 minute after you start the car…and remains on CONSTANTLY after that |
Explanation |
The computer is not receiving a signal from all 4 registered sensor IDs because one or more new TPMS sensors have been installed...but the IDs of the new sensors have not been registered in the car's TPMS computer. |
Fix |
Read the 4 TPMS sensor ID numbers in your wheels and store them into the car’s computer with a scan tool...OR...perform a Mitsubishi TPMS "re-learn" procedure.
NOTE: A Mirage requires an advanced TPMS or scan tool to resolve this. |
Are there Diagnostic Trouble Codes for TPMS problems?
Yes...the TPMS computer has its own set of error codes it uses to identify system malfunctions. If the TPMS warning light is on for any reason, one or more TPMS error codes will be stored in the TPMS computer to identify what the problem is.
How do I read TPMS trouble codes?
You will need an advanced TPMS tool or an expensive scan tool to read TPMS error codes from your Mirage. You can only retrieve these codes by interfacing directly with the TPMS computer through the OBDII port.
NOTE: A standard OBDII Code Reader will NOT show you TPMS trouble codes because these codes are not stored in the Powertrain Control Module like normal OBDII codes are.
If I correct a TPMS problem, do I need to clear the TPMS error codes to turn off the TPMS light?
Once you replace a bad sensor and the system receives a valid pressure signal from all 4 registered sensors, the TPMS light will turn off on its own. As far as I know, there is no need to clear TPMS codes in order to get the TPMS warning light to turn off.
EDIT December 2019: I'm not so sure about this any more. I have 4 properly functioning TPMS sensors in my car. I mistakenly over-inflated one of my tires to 60 PSI which triggered the TPMS light to flash for 1 minute when I start my car (indicating a TPMS malfunction). After adjusting the tire pressure to the proper level, the TPMS warning light is STILL flashing. I have a bad feeling that I set a code and it's not going to go away without using a dealer scan tool to clear it.
What TPMS trouble codes are used by the Mirage's TPMS?
Here's a list of the Mirage's TPMS Diagnostic Trouble Codes...
C1564 Vehicle's speed data invalid
C1900 Tire ID code No registration
C1901 Vehicles speed signal
C1902 Reset fail (warning threshold)
C1910,C1920,C1930,C1940 Transmitter battery voltage...Tire 1,2,3,4
C1911,C1921,C1931,C1941 Tire ID reception fail........Tire 1,2,3,4
C1912,C1922,C1932,C1942 Tire air pressure low.........Tire 1,2,3,4
C1913,C1923,C1933,C1943 Acceleration sensor...........Tire 1,2,3,4
C1914,C1924,C1934,C1944 Tire air pressure sensor......Tire 1,2,3,4
C1915,C1925,C1935,C1945 Transmitter OFF mode..........Tire 1,2,3,4
C1916,C1926,C1936,C1946 Temperature sensor............Tire 1,2,3,4
Note: TPMS codes are for Tire 1, Tire 2, Tire 3 and Tire 4. The numbers 1-4 are assigned to the TPMS sensors in the order that they were originally registered. This is the order you should use when registering sensors...
NOTE: Once the tires have been rotated, Tire #1 could be in any position on the vehicle. You would need to know the sensor ID registered as Tire #1 to know which tire actually corresponds to Tire #1. Cars with more sophisticated TPMS systems require that the sensors be re-registered when the tires are rotated. This is not required with a Mirage.
Last edited by Top_Fuel; 04-26-2021 at 01:09 PM.
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View my fuel log 2015 Mirage ES 1.2 manual: 52.2 mpg (US) ... 22.2 km/L ... 4.5 L/100 km ... 62.6 mpg (Imp)