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 |
---|---|---|---|---|
B228B |
System Voltage or GND Energization Malfunction |
Either of the following malfunctions is detected (a vehicle speed sensor malfunction is detected) (1-trip detection logic*):
|
|
|
Vehicle Condition |
|||
---|---|---|---|
Pattern 1 |
Pattern 2 |
||
Diagnosis Condition |
Drive the vehicle. |
○ |
○ |
Malfunction Status |
A malfunction is detected in the certification ECU (smart key ECU assembly) battery power supply circuit. |
○ |
- |
A malfunction is detected in the certification ECU (smart key ECU assembly) ground circuit. |
- |
○ |
|
Detection Time |
- |
- |
|
Number of Trips |
1 trip |
1 trip |
HINT:
DTC will be output when conditions for either of the patterns in the table above are met.
Vehicle Condition and Fail-safe Function when Malfunction Detected
Vehicle Condition when Malfunction Detected |
Fail-safe Function when Malfunction Detected |
---|---|
The engine stopped while driving. |
- |
DTC No. |
Data List and Active Test |
---|---|
B228B |
- |
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
Click here
HINT:
When the cable is disconnected and reconnected to the negative (-) battery terminal, the power source mode returns to the state it was in before the cable was disconnected.
PROCEDURE
1. |
CHECK HARNESS AND CONNECTOR (POWER SOURCE) |
Click here
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR IN CIRCUIT CONNECTED TO POWER SOURCE |
|
2. |
CHECK HARNESS AND CONNECTOR (GROUND) |
Click here
OK | ![]() |
END (TEMPORARY CONNECTION FAILURE IS SUSPECTED)
|
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR IN CIRCUIT CONNECTED TO POWER SOURCE |
Toyota CH-R Service Manual > Safety Connect System: Precaution
PRECAUTION
IGNITION SWITCH EXPRESSIONS
(a) The type of ignition switch used on this model differs according to the specifications
of the vehicle. The expressions listed in the table below are used in this section.
Expression
Ignition Switch (Position)
Ignition S ...
Toyota CH-R Service Manual > Air Conditioning Pressure Sensor: Installation
INSTALLATION
PROCEDURE
1. INSTALL AIR CONDITIONER PRESSURE SENSOR (for VALEO Made)
(a) Remove the vinyl tape from the cooler refrigerant liquid pipe A.
(b) Sufficiently apply compressor oil to a new air conditioner pressure sensor
and the fitting surface of the air conditioner pressure sensor. ...