Pattern Select Switch Circuit

AA80E AUTOMATIC TRANSMISSION: AUTOMATIC TRANSMISSION SYSTEM: Pattern Select Switch Circuit
- Pattern Select Switch Circuit

DESCRIPTION

The pattern select switch sends signals to the mirror switch through LIN communication, and the TCM sends signals to the mirror switch through CAN communication. When a pattern select switch signal is input into the TCM, the TCM sends a signal to the combination meter, which then illuminates the indicator light.

INSPECTION PROCEDURE

PROCEDURE

1. CHECK ECUS CONNECTED TO CAN BUS

(a) Connect the Techstream to the DLC3.

(b) Turn the engine switch on (IG).

(c) Turn the Techstream on.

(d) Check the ECUs connected to the CAN bus Diagnosis System.

Result:





B -- GO TO CAN COMMUNICATION SYSTEM CAN Communication System
A -- Continue to next step.

2. CHECK DTC (ALL)

(a) Connect the Techstream to the DLC3.

(b) Turn the engine switch on (IG).

(c) Turn the Techstream on.

(d) Check for DTCs.

Result:





B -- GO TO CAN COMMUNICATION SYSTEM CAN Communication System

C -- GO TO LIN COMMUNICATION SYSTEM LIN Communication System
A -- Continue to next step.

3. CHECK INDICATOR LIGHT OPERATION (ACTIVE TEST)

(a) Connect the Techstream to the DLC3.

(b) Turn the engine switch on (IG).

(c) Turn the Techstream on.

(d) Enter the following menus: Body / Combination Meter / Active Test.

(e) Check the condition of the pattern select indicator light by operating the Techstream.

Combination Meter





OK:

Indicator light turns on or off according to the Techstream operation.

NG -- GO TO METER / GAUGE SYSTEM How To Proceed With Troubleshooting
OK -- Continue to next step.

4. CHECK SWITCH SIGNAL (NO. 1 CONSOLE SWITCH DATA LIST)

(a) Connect the Techstream to the DLC3.

(b) Turn the engine switch on (IG).

(c) Turn the Techstream on.

(d) Enter the following menus: Body / Center Console Switch / Data List.

(e) Read the value displayed on the Techstream.

Center Console Switch





OK:

On the Techstream screen, item changes between ON and OFF according to switch operation.

NG -- REPLACE NO. 1 CONSOLE SWITCH
OK -- Continue to next step.

5. REPLACE TCM

(a) Replace the TCM Removal.

NEXT -- PERFORM A/T CODE REGISTRATION Registration