DESCRIPTION
The tire pressure warning ECU receives a vehicle speed signal from the combination meter and an engine speed signal from the ECM. The tire pressure warning ECU uses these signals to detect DTCs C2121/21 to C2124/24 (No Signal from Transmitter).
DTC No. |
DTC Detection Condition |
Trouble Area |
---|---|---|
C2173/73 |
When either of the following conditions is met for a total of 15 minutes: (a) No engine speed signal while vehicle speed is 8 km/h (5 mph) or more (b) No vehicle speed signal while engine speed is a specified value |
|
HINT:
This DTC is set at the same time as DTCs C2121/21 to C2124/24 are being set.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
PROCEDURE
1. |
PERFORM SIGNAL CHECK (VEHICLE SPEED SIGNAL AND ENGINE SPEED SIGNAL) |
(a) Enter the signal check mode in Test Mode Procedure (See page
).
(b) Drive the vehicle at 20 km/h (12 mph) or more for 10 seconds to clear DTC C2191/91.
(c) Start the engine and allow it to run at 1000 rpm for 3 seconds or more to clear DTC C2194/94.
(d) Check for signal check DTCs.
Result |
Proceed to |
---|---|
DTCs C2191/91 and C2194/94 are cleared |
A |
DTC C2191/91 is output |
B |
DTC C2194/94 is output |
C |
HINT:
DTCs C2181/81 to C2184/84 (Transmitter ID not Received) are output at this time, but they are not related to this check.
A | ![]() |
USE SIMULATION METHOD TO CHECK |
B | ![]() |
GO TO DTC C2191/91 |
C | ![]() |
GO TO DTC C2194/94 |
Removal
REMOVAL
CAUTION / NOTICE / HINT
HINT:
Use the same procedure for the RH side and LH side.
The procedure listed below is for the LH side.
PROCEDURE
1. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL
CAUTION:
Wait at least 90 seconds aft ...
Open or Short Circuit in ABS Motor Relay Circuit (C0273/13)
DESCRIPTION
The ABS motor relay supplies power to the ABS pump motor. While the ABS is activated,
the ECU turns the motor relay on and operates the ABS pump motor.
If the voltage supplied to the motor relay (+BM) is below the DTCs detection
threshold due ...
Repair
REPAIR
PROCEDURE
1. REPAIR INTAKE VALVE SEAT
NOTICE:
Repair the seat while checking the seating position.
Keep the lip free of foreign matter.
Take off the cutter gradually to make the intake valve seat smooth.
(a) Usin ...