DTC B22CB-19: Sub Battery System Output Power "A" Circuit Current Above Threshold [08/2023 - ]: Procedure

1. Check for DTCs.

   Body Electrical > Sub Battery System > Trouble Codes 

   Result

   Result	Proceed to
   B22CB-19 is output	A
   B22CB-19 is not output	B

Result: 

B 

USE SIMULATION METHOD TO CHECK. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [10/2022 - ] 

Result: 

A 

See step  2

Pre-procedure1

• Disconnect the cable from the negative (-) auxiliary battery terminal.
• Disconnect the H191 integrated capacitor (integration control supply) connector.

• Measure the resistance according to the value(s) in the table below.

  Standard Resistance

  Tester Connection	Condition	Specified Condition	Result
  H191-9 (BUAE) - Body ground	Ignition switch off	10 kΩ or higher	kΩ

  Result

  Proceed to
  OK
  NG

Post-procedure1

• None

Result: 

NG 

See step  5

Result: 

OK 

See step  3

1. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition	Result
   H191-6 (BUSE) - Body ground	Ignition switch off	10 kΩ or higher	kΩ

   Result

   Proceed to
   OK
   NG

Result: 

OK 

REPLACE INTEGRATED CAPACITOR (INTEGRATION CONTROL SUPPLY). Refer to  REMOVAL [08/2023 - ] 

Result: 

NG 

See step  4

Pre-procedure1

• Disconnect the C35 transmission floor shift assembly (shift control ECU) connector.

• Measure the resistance according to the value(s) in the table below.

  Standard Resistance

  Tester Connection	Condition	Specified Condition	Result
  H191-6 (BUSE) or C35-13 (BUB) - Body ground	Ignition switch off	10 kΩ or higher	kΩ

  Result

  Proceed to
  OK
  NG

Post-procedure1

• None

Result: 

OK 

REPLACE TRANSMISSION FLOOR SHIFT ASSEMBLY (SHIFT CONTROL ECU). Refer to  REMOVAL [10/2022 - ] 

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Pre-procedure1

• Disconnect the B56 shift control actuator assembly (shift actuator ECU) connector.

• Measure the resistance according to the value(s) in the table below.

  Standard Resistance

  Tester Connection	Condition	Specified Condition	Result
  H191-9 (BUAE) or B56-8 (BUB1) - Body ground	Ignition switch off	10 kΩ or higher	kΩ

  Result

  Proceed to
  OK
  NG

Post-procedure1

• None

Result: 

OK 

REPLACE SHIFT CONTROL ACTUATOR ASSEMBLY (SHIFT ACTUATOR ECU). Refer to  REMOVAL [10/2022 - ] 

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR