Toyota Tundra (2015 year). Manual — part 673

Last Modified: 9-16-2014

6.6 D

Doc ID: RM000000W750RFX

Model Year: 2015

Model: Tundra

Prod Date Range: [08/2014 - ]

Title: AB60F AUTOMATIC TRANSMISSION: AUTOMATIC TRANSMISSION SYSTEM: SYSTEM DESCRIPTION; 2015

MY Tundra [08/2014 - ]

SYSTEM DESCRIPTION

1. SYSTEM DESCRIPTION

(a) The Electronic Controlled Automatic Transmission (ECT) is an automatic transmission that electronically

controls shift timing using the Engine Control Module (ECM). The ECM detects electrical signals that

indicate engine and driving conditions, and controls the shift point based on driver habits and road

conditions. As a result, fuel efficiency and power transmission performance are improved.

Shift shock is reduced by controlling the engine and transmission simultaneously.

In addition, the ECT has the following features:

Diagnostic function.

Fail-safe function when a malfunction occurs.

AB60F AUTOMATIC TRANSMISSION: AUTOMATIC TRANSMIS...

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Last Modified: 9-16-2014

6.6 D

Doc ID: RM000000W6Z148X

Model Year: 2015

Model: Tundra

Prod Date Range: [08/2014 - ]

Title: AB60F AUTOMATIC TRANSMISSION: AUTOMATIC TRANSMISSION SYSTEM: HOW TO PROCEED WITH

TROUBLESHOOTING; 2015 MY Tundra [08/2014 - ]

HOW TO PROCEED WITH TROUBLESHOOTING

HINT:

The ECM is connected to the CAN communication system. Therefore, before starting troubleshooting, make
sure to check that there is no trouble in the CAN communication system.
*: Use the Techstream.

1.

VEHICLE BROUGHT TO WORKSHOP

2.

CUSTOMER PROBLEM ANALYSIS

(a) Refer to the How to Troubleshoot ECU Controlled Systems in Introduction section

.

3.

INSPECT BATTERY VOLTAGE

Standard voltage:

11 to 14 V

If the voltage is below 11 V, recharge or replace the battery before proceeding.

4.

CONNECT TECHSTREAM TO DLC3*

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A

5.

CHECK AND CLEAR DTCS AND FREEZE FRAME DATA*

(a) Refer to the DTC Check / Clear

.

6.

VISUAL INSPECTION

7.

SETTING CHECK MODE DIAGNOSIS*

(a) Refer to the Check Mode Procedure

.

8.

PROBLEM SYMPTOM CONFIRMATION

(a) Refer to the Road Test

.

Result

RESULT

PROCEED TO

Symptom does not occur

A

Symptom occurs

B

B

GO TO STEP 10

9.

SYMPTOM SIMULATION

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A

OK

(a) Refer to the Electronic Circuit Inspection Procedure

.

10.

DTC CHECK*

(a) Refer to the DTC Check / Clear

.

Result

RESULT

PROCEED TO

DTC is not output

A

DTC is output

B

B

GO TO STEP 18

11.

BASIC INSPECTION

(a) Refer to the Park/Neutral Position Switch

.

(b) Refer to the Shift Lever Assembly.

for Column Shift Type, refer to the following procedures

for Floor Shift Type, refer to the following procedures

NG

GO TO STEP 21

12.

MECHANICAL SYSTEM TESTS

(a) Refer to the Mechanical System Tests

.

NG

GO TO STEP 17

AB60F AUTOMATIC TRANSMISSION: AUTOMATIC TRANSMIS...