DTC P0657-14: Actuator Supply Voltage "A" Circuit Short to Ground or Open [12/2019 - 10/2022]: Procedure

1. According to the display on the GTS, read the Data List.

   Powertrain > Engine > Data List 

   Tester Display
   +BM Voltage

   Standard Voltage

   11 to 14 V

   Result

   Proceed to
   OK
   NG

Result: 

OK 

CHECK FOR INTERMITTENT PROBLEMS. Refer to  CHECK FOR INTERMITTENT PROBLEMS [12/2019 - 10/2022] 

Result: 

NG 

See step  2

1. Disconnect the ECM connector.
2. Measure the voltage according to the value(s) in the table below.

   Standard Voltage

   Tester Connection	Condition	Specified Condition
   A28-8 (+BM) - Body ground	Always	11 to 14 V

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

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   C54-49 (ME01) - Body ground	Always	Below 1 Ω
   C54-53 (E1) - Body ground	Always	Below 1 Ω

   Result

   Proceed to
   OK
   NG

Result: 

OK 

REPLACE ECM. Refer to  REMOVAL [12/2019 - 09/2020]  , or refer to  REMOVAL [09/2020 - 10/2022] 

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR