How To Proceed With Troubleshooting [11/2021 - ]: Procedure

1. Ask the customer when and how the trouble occurred using the Check List for Interview.
2. Before performing diagnostics, check the following items which might affect AT problems.
   • General inspection
     • Check the battery.

       Refer to ON-VEHICLE INSPECTION [11/2021 - ]

     • Make sure that the ground terminal bolt is tightened securely.
     • Make sure there is no noise, dragging or contact pattern in each select lever range.
       WARNING:

       Stop the engine while checking operation of the select lever.

   • Disconnection of harness connector
   • Visual check for harness damage
   • Oil leakage
   • Stall test

     Refer to MECHANICAL SYSTEM TESTS [11/2021 - 12/2023] , or refer to MECHANICAL SYSTEM TESTS [12/2023 - ] 

   • Line pressure test

     Refer to HYDRAULIC TEST [11/2021 - ] 

   • Time lag test

     Refer to MECHANICAL SYSTEM TESTS [11/2021 - 12/2023] , or refer to MECHANICAL SYSTEM TESTS [12/2023 - ] 

   • ROAD TEST

     Refer to ROAD TEST [11/2021 - ] 

   • Park/neutral position switch assembly

     Refer to ON-VEHICLE INSPECTION [11/2021 - ]

   Is the check result OK?

   Result	Proceed to
   YES	A
   NO (Repair the items which may be affecting the AT trouble.)	B

Result: 

B 

REPAIR THE ITEMS WHICH MAY BE AFFECTING THE AT TROUBLE 

Result: 

A 

See step  2

1. Start the engine and wait for 2 seconds or more.

   Refer to DIAGNOSIS SYSTEM [11/2021 - 12/2023] , or refer to DIAGNOSIS SYSTEM [12/2023 - ]

   Does the malfunction indicator light illuminate?

   Result	Proceed to
   YES	A
   NO	B

Result: 

B 

See step  5

Result: 

A 

See step  3

1. Read the DTC.

   Powertrain > Transmission Control System > Trouble Codes 

   Are any DTCs displayed?

   Result	Proceed to
   YES (Record the DTC, time stamp and freeze frame data.)	A
   NO	B

Result: 

B 

See step  5

Result: 

A 

See step  4

Result

Result: 

NEXT 

See step  6

1. Inspect using Problem Symptoms Table.

   Refer to PROBLEM SYMPTOMS TABLE [11/2021 - ] 

2. Perform the road test.

   Refer to ROAD TEST [11/2021 - ] 

3. Read the DTC.

   Powertrain > Transmission Control System > Trouble Codes 

   Are any DTCs displayed?

   Result	Proceed to
   YES	A
   NO (Finish the diagnosis.)	B

Result: 

B 

END 

Result: 

A 

See step  6

1. Inspect by referring to Diagnostic Trouble Code Chart.

   Refer to DIAGNOSTIC TROUBLE CODE CHART [11/2021 - ] 

2. Repair or replace the cause of trouble.
3. Using the GTS, clear the DTC.

   Powertrain > Transmission Control System > Clear DTCs 

4. Execute the inspection mode.

   Refer to SYSTEM NORMAL CONDITION CHECK [11/2021 - ] 

5. Perform All Readiness and confirm that the diagnosis is completed.

   Powertrain > Transmission Control System > Utility 

   Tester Display
   All Readiness

6. Read the DTC.

   Powertrain > Transmission Control System > Trouble Codes 

   Are any DTCs displayed?

   Result	Proceed to
   YES	A
   NO	B

Result: 

A 

GO TO DTC CHART 

Refer to DIAGNOSTIC TROUBLE CODE CHART [11/2021 - ] 

Result: 

B 

END