Michelin M4 Series User Manual

11
Product Install Guide – M4xx Series
03/11/22 | V1.9.9
12 Vdc on
multimeter**
It is important to dierentiate between the rst (accessories) stage and second (ignition) stage.
You have to make sure that you connect the ignition wire to a second (ignition) stage ignition feed. If
connected to the rst (accessories) stage the data recorded by the M4xx will be wrong, for example
idling.
The ignition feed must also be live when a Stop & Start occurs (engine o at trac lights). The feed
does not have to be live while cranking but it is good practice if it is.
Turn key to 1st stage*
Instrument Cluster O
0 Vdc on multimeter
0 Vdc on multimeter
12 Vdc on multimeter
Instrument Cluster On
Instrument Cluster On
Instrument Cluster O
Turn key to 2nd stage
Crank the engine
Stop the engine
**Sometimes the voltage will fall to 0Vdc while the engine is cranking and then returns to 12-14Vdc.
NOTE:
*Some vehicles do not have an accessories stage and the rst position of the barrel is ignition.
8. Ignition

Michelin M4 Series Specifications

General

Brand	Michelin
Model	M4 Series
Category	Automobile Accessories
Language	English