DTC P26C6: Exhaust Flow Control Valve "A" Control Circuit Low; DTC P26C7: Exhaust Flow Control Valve "A" Control Circuit High; DTC P2BF9: Exhaust Flow Control Valve "B" Control Circuit Low; DTC P2BFA: Exhaust Flow Control Valve "B" Control Circuit High [05/2023 - ]: Procedure

Refer to ON-VEHICLE INSPECTION [03/2017 - ]

Result

Result: 

OK 

CHECK FOR INTERMITTENT PROBLEMS. Refer to  CHECK FOR INTERMITTENT PROBLEMS [03/2017 - ] 

Result: 

NG 

See step  2

1. Switch connector M5 and M6 on the exhaust pipe gas control actuator sub-assembly.
2. Drive the vehicle in accordance with the driving pattern described in the Confirmation Driving Pattern.
3. Enter the following menus: Powertrain / Engine / Trouble Codes.

   Powertrain > Engine > Trouble Codes 

4. Read the pending DTCs.

   Result

   Result	Proceed to
   DTCs change	A
   DTCs do not change	B

Result: 

B 

See step  4

Result: 

A 

See step  3

1. Inspect the exhaust tailpipe assembly (exhaust change valve).

   Refer to INSPECTION [03/2017 - ]

   HINT: 

   If the result of the exhaust tail pipe assembly (exhaust change valve) inspection shows that the operation of the exhaust change valve is poor, replace the exhaust pipe gas control actuator sub-assembly and exhaust tail pipe assembly (exhaust change valve) at the same time.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

REPLACE EXHAUST PIPE GAS CONTROL ACTUATOR SUB-ASSEMBLY. Refer to  REMOVAL [03/2017 - ] 

Result: 

NG 

REPLACE EXHAUST PIPE GAS CONTROL ACTUATOR SUB-ASSEMBLY AND EXHAUST TAILPIPE ASSEMBLY (EXHAUST CHANGE VALVE). Refer to  REMOVAL [04/2020 - 09/2023]  , or refer to  REMOVAL [09/2023 - ] 

1. Disconnect the exhaust pipe gas control actuator sub-assembly connector.
2. Disconnect the ECM connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   M5-3 (M+) - G42-25 (EXM+)	Always	Below 1 Ω
   M5-5 (M-) - G42-26 (EXM-)	Always	Below 1 Ω
   M6-3 (M2+) - G42-55 (EX2+)	Always	Below 1 Ω
   M6-5 (M2-) - G42-56 (EX2-)	Always	Below 1 Ω
   M5-3 (M+) or G42-25 (EXM+) - Body ground and other terminals	Always	10 kΩ or higher
   M5-5 (M-) or G42-26 (EXM-) - Body ground and other terminals	Always	10 kΩ or higher
   M6-3 (M2+) or G42-55 (EX2+) - Body ground and other terminals	Always	10 kΩ or higher
   M6-5 (M2-) or G42-56 (EX2-) - Body ground and other terminals	Always	10 kΩ or higher

   Result

   Proceed to
   OK
   NG

Result: 

OK 

REPLACE ECM. Refer to  REMOVAL [05/2023 - ] 

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR