DTC C2191/91 Vehicle Speed Signal Error (Test Mode DTC)
DESCRIPTION
The tire pressure warning ECU receives a speed signal from the combination meter. This DTC is stored upon entering test mode, and cleared when a vehicle speed signal of 12 mph (20 km/h) is detected for 3 seconds or more. This DTC is output only in test mode.
WIRING DIAGRAM
INSPECTION PROCEDURE
NOTICE:
1 READ VALUE ON INTELLIGENT TESTER
(a) Make sure that the ignition switch is off.
(b) Connect the intelligent tester to the DLC3.
(c) Turn the ignition switch to the ON position.
(d) Select the item below in the Data List, and read the value displayed on the intelligent tester.
HINT: Enter the following menus: DIAGNOSIS / OBD/MOBD / METER / DATA LIST.
METER:
(e) Check that the values indicated on the tester and on the combination meter are the same.
OK: Vehicle speed indicated on the intelligent tester indicates the actual speed.
2 CHECK HARNESS AND CONNECTOR (ECU - COMBINATION METER)
(a) Disconnect the T15 ECU connector.
(b) Disconnect the C10 meter connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard resistance
REPLACE TIRE PRESSURE WARNING ECU (See page TW-87)
Shifting the shift lever
While the engine switch is in the
“ON” position (vehicles without a
smart key system) or IGNITION ON mode (vehicles with a smart
key system), move the shift lever with the brake pedal
depressed.
When shifting the shift lever between P and D, make sure that the vehicle
is completely ...
Installing child restraints
Follow the child restraint system manufacturer’s instructions.
Firmly secure child restraints to the rear seats using the LATCH
anchors or a seat belt. Attach the top tether strap when installing
a child restraint.
The lap/shoulder belt can be used if your child restraint sy ...
Poor Sound Quality in All Modes (Low Volume)
INSPECTION PROCEDURE
1 CHECK AUDIO SETTINGS
Set "BASS", "MID" and "TREB" to the initial values and
check that sound is normal.
OK:
Malfunction disappears.
2 COMPARE WITH ANOTHER VEHICLE OF SAME MODEL
Compare with another vehicle of the same model.
...