ECM Communication Stop Mode [10/2022 - ]: Procedure

1. Check vehicle type.

   Result

   Result	Proceed to
   for T24A-FTS	A
   for A25A-FXS	B

Result: 

B 

See step  4

Result: 

A 

See step  2

1. Disconnect the cable from the negative (-) auxiliary battery terminal.
2. Disconnect the A15 ECM connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   A15-26 (CFDH) - A15-25 (CFDL)	Cable disconnected from negative (-) auxiliary battery terminal	108 to 132 Ω

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPAIR OR REPLACE CAN MAIN BUS LINES OR CONNECTOR (ECM) 

Result: 

OK 

See step  3

1. Check the ECM power source circuit.

   Refer to ECM Power Source Circuit [10/2022 - ]

   Result

   Proceed to
   OK
   NG

Result: 

OK 

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

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER SOURCE CIRCUIT) 

1. Disconnect the cable from the negative (-) auxiliary battery terminal.
2. Disconnect the A15 ECM connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   A15-7 (CFDH) - A15-8 (CFDL)	Cable disconnected from negative (-) auxiliary battery terminal	108 to 132 Ω

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPAIR OR REPLACE CAN MAIN BUS LINES OR CONNECTOR (ECM) 

Result: 

OK 

See step  5

1. Check the ECM power source circuit.

   Refer to ECM Power Source Circuit [10/2022 - ]

   Result

   Proceed to
   OK
   NG

Result: 

OK 

REPLACE ECM. Refer to  REMOVAL [10/2022 - 08/2023]  , or refer to  REMOVAL [08/2023 - ] 

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER SOURCE CIRCUIT)