DESCRIPTION
This DTC is stored when a malfunction in the IG circuit or IG hold circuit in the certification ECU (smart key ECU assembly) is detected.
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.
DTC Code |
DTC Detection Condition |
Trouble Area |
DTC Output Confirmation Operation |
---|---|---|---|
B2271 |
When either of the following conditions is met (1-trip detection logic*):
|
|
IG ON |
HINT:
Vehicle Condition when Malfunction Detected |
Fail-safe Function when Malfunction Detected |
---|---|
The engine switch cannot be turned on (IG) (the engine cannot be started). |
The power source mode cannot be changed to on (IG). |
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
Click here
Troubleshoot the smart key system (for Start Function) after confirming that the communication systems are functioning properly.
DTC |
Data List Item |
Active Test Item |
---|---|---|
B2271 |
Power Source Control
Starting Control
|
- |
PROCEDURE
1. |
CHECK HARNESS AND CONNECTOR (POWER SOURCE) |
(a) Disconnect the certification ECU (smart key ECU assembly) connector.
(b) Measure the voltage according to the value(s) in the table below. Standard Voltage:
|
|
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR IN CIRCUIT CONNECTED TO POWER SOURCE |
|
2. |
CHECK HARNESS AND CONNECTOR (GROUND) |
(a) Disconnect the certification ECU (smart key ECU assembly) connector.
(b) Measure the resistance according to the value(s) in the table below. Standard Resistance:
|
|
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
3. |
CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) |
(a) Reconnect the certification ECU (smart key ECU assembly) connector. |
|
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
C27-3 (IG1D) - Body ground |
Engine switch on (ACC) → Engine switch on (IG) |
1 V or less → 9 V or higher |
*a |
Component with harness connected (Certification ECU (Smart Key ECU Assembly)) |
OK | ![]() |
USE SIMULATION METHOD TO CHECK |
NG | ![]() |
REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) |
Installation
INSTALLATION
PROCEDURE
1. INSTALL CENTER STOP LIGHT ASSEMBLY (for Bulb Type Stop Light)
(a) Install the 3 center stop light bulbs to the 3 center stop light sockets.
(b) Turn the 3 center stop light sockets with 3 center stop light bulbs
in the direction indicated by the arrow sho ...
Identification Information
Vehicle Identification And Serial Numbers
VEHICLE IDENTIFICATION AND SERIAL NUMBERS
1. VEHICLE IDENTIFICATION NUMBER
(a) The vehicle identification number is stamped on the vehicle body and on the
certification label, as shown in the illustration.
A:
Vehicle Identification Number
B:
C ...
Inspection
INSPECTION
PROCEDURE
1. INSPECT BRAKE DRUM INSIDE DIAMETER
(a) Using a brake drum gauge or equivalent, measure the inside diameter of the
drum.
Standard inside diameter:
254 mm (10.00 in.)
Maximum inside diameter:
256 mm (10.08 in.)
If the inside diameter is greater than the maximum, r ...