Mitsubishi Mirage 2015

TIRE PRESSURE MONITORING SYSTEM (TPMS) DIAGNOSIS
TSB Revision
WHEEL AND TIRE
31-26
DTC C1910: Transmitter BATT voltage, Tire1
DTC C1920: Transmitter BATT voltage, Tire2
DTC C1930: Transmitter BATT voltage, Tire3
DTC C1940: Transmitter BATT voltage, Tire4
DTC C1911: Tire ID reception fail, Tire1
DTC C1921: Tire ID reception fail, Tire2
DTC C1931: Tire ID reception fail, Tire3
DTC C1941: Tire ID reception fail, Tire4
CAUTION
If there is any problem in the CAN bus lines, an
incorrect DTC may be set. Prior to this diagnosis,
diagnose the CAN bus lines (Refer to GROUP
54C
 CAN Bus Diagnostics Table P.54C-12).
.
DTC SET CONDITIONS
DTCs C1910, C1920, C1930, C1940
 When the reception abnormality warning is acti-
vated because of the low battery voltage of the
TPMS transmitter.
DTCs C1911, C1921, C1931, C1941
 When ETACS-ECU <Vehicles without Keyless
Operation System> or KOS&OSS-ECU <Vehi
-
cles with Keyless Operation System> cannot
receive the signals from the TPMS transmitters
while driving for about 20 minutes, this code is
set.
.
TROUBLESHOOTING HINTS
The most likely causes for this DTC to be set are:
 Low battery that is incorporated into the TPMS
transmitter
 Damaged wiring harness and connector
 Registered IDs unmatched
 Effective ID set unmatched
 Malfunction of TPMS transmitter
 Malfunction of ETACS-ECU <Vehicles without
Keyless Operation System>
 Malfunction of KOS&OSS-ECU <Vehicles with
Keyless Operation System>
 The CAN bus may be defective.
DIAGNOSIS
STEP 1. Using scan tool MB991958, diagnose the CAN bus
lines.
Use scan tool to diagnose the CAN bus lines.
Q: Is the check result normal?
YES : Go to Step 2.
NO : Repair the CAN bus lines (Refer to GROUP 54C 
CAN Bus Diagnostics Table
P.54C-12). On
completion, go to Step 2.
STEP 2. DTC recheck after resetting CAN bus lines
Recheck if DTC No. C1910, C1911, C1920, C1921, C1930,
C1931, C1940 or C1941 is set.
(1) Turn the ignition switch (engine starting switch) from the
"LOCK" (OFF) to "ON" position.
(2) Check if the DTC is set.
(3) Turn the ignition switch (engine starting switch) to the
"LOCK" (OFF) position.
Q: Is the DTC set?
YES : Go to Step 3.
NO : The procedure is complete.