DTC P162B-87: Lost Communication with Battery Monitor Module Missing Message [10/2022 - ]: Procedure

1. Check installation condition of the battery state sensor assembly.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

INSTALL THE BATTERY STATE SENSOR ASSEMBLY CORRECTLY. Refer to  INSTALLATION [10/2022 - ] 

Result: 

OK 

See step  2

Refer to ON-VEHICLE INSPECTION [10/2022 - ] 

Result

Result: 

NG 

REPAIR OR REPLACE CHARGING SYSTEM 

Result: 

OK 

See step  3

Pre-procedure1

• Disconnect the ECM connector.
• Disconnect the battery state sensor assembly connector.
• Disconnect the generator assembly connector.

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

  Standard Resistance

  Tester Connection	Condition	Specified Condition	Result
  A16-44 (LIN) - A40-2 (LIN)	Always	Below 1 Ω	Ω
  A16-44 (LIN), A40-2 (LIN) or B33-2 (LIN) - Body ground	Always	10 kΩ or higher	kΩ

  Result

  Proceed to
  OK
  NG

Post-procedure1

• None.

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

OK 

See step  4

Pre-procedure1

• Check that the battery state sensor assembly connector is securely connected.

  OK

  The connector is securely connected.

• Disconnect the battery state sensor assembly connector.
• Check the connector case and terminals for deformation or corrosion.

  OK

  No deformation or corrosion.

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

  Standard Voltage

  Tester Connection	Condition	Specified Condition	Result
  A40-3 (+B) - Body ground	Always	11 to 14 V	V

  Result

  Proceed to
  OK
  NG

Post-procedure1

• None.

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

OK 

See step  5

Pre-procedure1

• Check for DTCs, and note down any DTCs that are output.

  Powertrain > Engine > Trouble Codes 

• Clear the DTCs.

  Powertrain > Engine > Clear DTCs 

  Result

  Proceed to
  NEXT

Post-procedure1

• Turn the ignition switch off, wait 30 seconds.

Result: 

NEXT 

See step  6

Pre-procedure1

• Start the engine.
• Allow the engine to idle for approximately 17 minutes (for Mexico Models) or 60 seconds (except Mexico Models) or more.

• Check for DTCs.

  Powertrain > Engine > Trouble Codes 

  Result

  Result	Proceed to
  DTCs are not output	A
  P161A-87 and P162B-87 are output	B
  Only P162B-87 is output	C

Post-procedure1

• None.

Result: 

A 

CHECK FOR INTERMITTENT PROBLEMS. Refer to  CHECK FOR INTERMITTENT PROBLEMS [10/2022 - ] 

Result: 

B 

REPLACE ECM. Refer to  REMOVAL [10/2022 - ] 

Result: 

C 

REPLACE BATTERY STATE SENSOR ASSEMBLY. Refer to  REMOVAL [10/2022 - ]