DESCRIPTION
The electric power control ECU monitors the IG (IG2) voltage. When there is no voltage input to IG (IG2), this DTC is output.
DTC Code | DTC Detection Condition | Trouble Area |
---|---|---|
B22A0 | IG (IG2) signal is input via CAN communication, but there is no IG (IG2) input voltage |
|
WIRING DIAGRAM
INSPECTION PROCEDURE
PROCEDURE
CHECK PASSENGER SIDE JUNCTION BLOCK (IG INPUT VOLTAGE)
Disconnect the PK junction block connector.
Measure the voltage according to the value(s) in the table below.
Standard voltage | ||||||
---|---|---|---|---|---|---|
|
NG |
CHECK HARNESS AND CONNECTOR (PASSENGER SIDE J/B - ENGINE ROOM NO. 2 J/B, R/B) Click here |
OK |
INSPECT FUSE (P IG2)
Remove the P IG2 fuse from the passenger side junction block.
Measure the resistance of the fuse.
Standard resistance | ||||||
---|---|---|---|---|---|---|
|
NG |
REPLACE FUSE |
OK |
REPLACE PASSENGER SIDE JUNCTION BLOCK (ELECTRIC POWER CONTROL ECU)
CHECK HARNESS AND CONNECTOR (PASSENGER SIDE J/B - ENGINE ROOM NO. 2 J/B, R/B)
Disconnect the PK and 2C junction block connectors.
Measure the resistance according to the value(s) in the table below.
Standard resistance | |||||||||
---|---|---|---|---|---|---|---|---|---|
|
NG |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
OK |
CHECK HARNESS AND CONNECTOR (ENGINE ROOM NO. 2 JUNCTION BLOCK, RELAY BLOCK - BATTERY)
Disconnect the 2E junction block connector.
Measure the voltage according to the value(s) in the table below.
Standard voltage | ||||||
---|---|---|---|---|---|---|
|
NG |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
OK |
INSPECT FUSE (ECU-IG)
Remove the ECU-IG fuse from the engine room No. 2 junction block.
Measure the resistance of the fuse.
Standard resistance | ||||||
---|---|---|---|---|---|---|
|
NG |
REPLACE FUSE |
OK |
CHECK FOR DTC (B2273)
Check for DTC B2273 for 1UR-FE Click here or 1UR-FSE Click here.
Result | Proceed to |
---|---|
DTC B2273 is not output | A |
DTC B2273 is output (for 1UR-FE) | B |
DTC B2273 is output (for 1UR-FSE) | C |
B |
GO TO ENTRY AND START SYSTEM (for Starting) Click here |
C |
GO TO ENTRY AND START SYSTEM (for Starting) Click here |
A |
REPLACE ENGINE ROOM NO. 2 JUNCTION BLOCK