DESCRIPTION
The switch circuit inside the combination meter assembly turns on and off according to the steering pad switch assembly operation.
During test mode, when the steering pad switch assembly is operated, "TPMS" is selected on the multi-information display and the "ENTER" switch (steering pad switch assembly) is pressed, the tire pressure warning light illuminates, and when the "ENTER" switch (steering pad switch assembly) is not pressed, the tire pressure warning light blinks at 0.125 second intervals.
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
Note |
---|---|---|---|---|
C2198/98 |
Initialization Switch (for Test Mode DTC) |
Test mode procedure is performed. |
|
- |
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
Click here
PROCEDURE
1. |
INSPECT STEERING PAD SWITCH ASSEMBLY |
(a) Remove the steering pad switch assembly.
Click here
(b) Inspect the steering pad switch assembly.
Click here
NG | ![]() |
REPLACE STEERING PAD SWITCH ASSEMBLY |
|
2. |
INSPECT SPIRAL CABLE SUB-ASSEMBLY |
(a) Remove the spiral cable sub-assembly.
Click here
(b) Inspect the spiral cable sub-assembly.
Click here
NG | ![]() |
REPLACE SPIRAL CABLE SUB-ASSEMBLY
|
|
3. |
CHECK HARNESS AND CONNECTOR (SPIRAL CABLE SUB-ASSEMBLY - COMBINATION METER ASSEMBLY) |
(a) Disconnect the F29 spiral cable sub-assembly connector.
(b) Disconnect the F4 combination meter assembly connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
F29-10 (+DP) - F4-28 (MSM+) |
Always |
Below 1 Ω |
F29-10 (+DP) or F4-28 (MSM+) - Body ground |
Always |
10 kΩ or higher |
F29-11 (+DP2) - F4-33 (MSSL) |
Always |
Below 1 Ω |
F29-11 (+DP2) or F4-33 (MSSL) - Body ground |
Always |
10 kΩ or higher |
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
4. |
CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - TIRE PRESSURE WARNING ECU AND RECEIVER) |
(a) Disconnect the M23 tire pressure warning ECU and receiver connector.
(b) Disconnect the F4 combination meter assembly connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
M23-3 (CLSW) - F4-4 (INT) |
Always |
Below 1 Ω |
M23-3 (CLSW) or F4-4 (INT) - Body ground |
Always |
10 kΩ or higher |
F4-21 (ET) - Body ground |
Always |
Below 1 Ω |
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
5. |
CHECK TERMINAL VOLTAGE (INT) |
(a) Disconnect the F4 combination meter assembly connector.
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
F4-4 (INT) - Body ground |
Ignition switch to ON |
8 to 15 V |
OK | ![]() |
GO TO METER / GAUGE SYSTEM |
NG | ![]() |
REPLACE TIRE PRESSURE WARNING ECU AND RECEIVER |
Toyota CH-R Service Manual > Smart Key System(for Entry Function): Operation History List
OPERATION HISTORY LIST
NOTICE:
The cause of a malfunction is stored in the RAM or EEPROM in the certification
ECU (smart key ECU assembly). As the cause of a malfunction stored in the
RAM will be cleared when the cable is disconnected from the negative (-)
battery terminal, do ...
Toyota CH-R Service Manual > Smart Key System(for Start Function): System Voltage or GND Energization Malfunction (B228B)
DESCRIPTION
This DTC is stored when there is a malfunction in the certification ECU (smart
key ECU assembly) battery power supply circuit or ground circuit.
DTC No.
Detection Item
DTC Detection Condition
Trouble Area
Note
B2 ...