No.3 Wheel Unit Id Registration Cannot Be Performed (Tpms Warning Light Flashes) - Mazda CX-7 2007 Workshop Manual

No.3 WHEEL UNIT ID REGISTRATION CANNOT BE PERFORMED (TPMS WARNING LIGHT FLASHES)

Caution
• Activate the wheel unit ID registration mode using the M-MDS, and perform the following steps if
the TPMS warning light does not turn off after driving at 25 km/h {15.5 mph} or more for 10 min or
more.
4 Wheel unit ID registration cannot be performed (TPMS warning light flashes).
[TROUBLESHOOTING HINTS]
• New wheel unit malfunction (caused when installing to wheel)
• Any malfunction on an old wheel unit which has not been replaced.
STEP
1 CAN THE WHEEL UNIT ID BE REGISTERED?
• Connect the M-MDS.
• Display the wheel unit ID registration
condition (ID and tire pressure table) using
the M-MDS.
• Temporarily remove the battery and reinstall
it immediately.
Note
• If the battery is removed, the tire
pressure data for WU_1 to WU_4
stored in the instrument cluster is
reset.
• Pressure is 0 kPa {0 kgf/cm
when it is displayed again using the M-
MDS.
• Set tire pressure for the four wheels
separately.
• Perform the wheel unit ID registration again.
• Can the ID be registered?
2 VERIFY THE WHEEL UNIT ID REGISTRATION
CONDITIONS (ID AND TIRE PRESSURE
TABLE) USING THE M-MDS
• Refer to [M-MDS display (example)] to
specify wheel unit for which the ID could not
be registered. (See 02-03-7 Display Of M-
MDS (Example).)
• Is the wheel unit for which the ID could not
be registered a new wheel unit?
Caution
• ID numbers of WU_1 to WU_4 are
updated when wheel on all of four
wheels are registered.
3 Replace the old wheel unit, and then go tot the next step (any malfunction on an old wheel unit which has not been
replaced).
4 CAN THE WHEEL UNIT ID BE REGISTERED?
• Perform the wheel unit ID registration using
the M-MDS.
02-03–6
SYMPTOM TROUBLESHOOTING
INSPECTION
2
, 0 psi}
Yes Trouble shooting completed. (Adjust the tire pressure on
four wheels, and then return the vehicle to the customer.)
No Go to the next step.
Yes Replace with a new wheel unit, and then go to Step 4.
No Go to the next step.
Yes Troubleshooting completed.
No Verify troubleshooting again and return to Step 1 if the
malfunction recurs.
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