Last Modified: 11-20-2023 |
6.11:8.1.0 |
Doc ID: RM1000000014Y4D |
Model Year Start: 2018 |
Model: Camry HV |
Prod Date Range: [07/2017 -
] |
Title: THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function): B2275; STSW Monitor Malfunction; 2018 - 2024 MY Camry HV [07/2017 - ] |
DTC
|
B2275
|
STSW Monitor Malfunction
|
DESCRIPTION
This DTC is stored when a malfunction is detected in the starter circuit inside the certification ECU (smart key ECU assembly).
DTC No.
|
Detection Item
|
DTC Detection Condition
|
Trouble Area
|
Note
|
B2275
|
STSW Monitor Malfunction
|
Certification ECU (smart key ECU assembly) internal HV activation request output circuit malfunction or external circuit malfunction (1-trip detection logic*)
|
-
Certification ECU (smart key ECU assembly)
-
Hybrid vehicle control ECU assembly
-
Wire harness or connector
|
DTC Output Confirmation Operation:
-
Turn the power switch on (IG) and wait 10 seconds or more, then start the hybrid control system 3 times.
|
-
*: Only detected while a malfunction is present and the power switch is on (IG).
Vehicle Condition and Fail-safe Function when Malfunction Detected
Vehicle Condition when Malfunction Detected
|
Fail-safe Function when Malfunction Detected
|
-
The power source mode changes to on (READY) even though the hybrid control system is not started.
-
The power source mode does not change to on (READY) even though the hybrid control system is started.
|
-
|
Related Data List and Active Test Items
DTC No.
|
Data List and Active Test
|
B2275
|
|
WIRING DIAGRAM
CAUTION / NOTICE / HINT
PROCEDURE
(a) Turn the power switch on (IG) and wait 25 seconds.
(b) Using the Techstream, check for certification ECU (smart key ECU assembly) DTCs.
Body Electrical > Power Source Control > Trouble Codes
OK:
DTC B2285 is not output simultaneously.
OK
|
|
|
2.
|
CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) - HYBRID VEHICLE CONTROL ECU ASSEMBLY)
|
(a) Disconnect the K62 certification ECU (smart key ECU assembly) connector.
(b) Disconnect the K69 hybrid vehicle control ECU assembly connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection
|
Condition
|
Specified Condition
|
K62-27 (ST2) - K69-9 (ST2)
|
Always
|
Below 1 Ω
|
K62-27 (ST2) or K69-9 (ST2) - Other terminals and body ground
|
Always
|
10 kΩ or higher
|
NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR
|
OK
|
|
|
3.
|
CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)
|
(a) Reconnect the K62 certification ECU (smart key ECU assembly) connector.
(b) Reconnect the K69 hybrid vehicle control ECU assembly connector.
(c) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection
|
Condition
|
Specified Condition
|
K62-27 (ST2) - Body ground
|
With the brake pedal depressed, the power switch is pressed and held → After approx. 3 sec. has elapsed, the power switch is released
|
8.5 V or higher → 1 V or less
|
|