Pattern Select Switch Sport Mode Circuit

AA80E AUTOMATIC TRANSMISSION / TRANSAXLE: AUTOMATIC TRANSMISSION SYSTEM: Pattern Select Switch Sport Mode Circuit
- Pattern Select Switch Sport Mode Circuit

DESCRIPTION

The pattern select switch makes it possible to select SPORT modes.

The cowl side junction block ECU (main body ECU RH) receives pattern select switch information, and sends it through the multiplex communication system and CAN system to each ECU.

The SPORT signal changes control for the engine, automatic transmission, VDIM and electric power steering in an integrated manner.

When SPORT mode is selected, the SPORT indicator illuminates, VDIM SPORT mode is entered, and the electric power steering, automatic transmission control and engine control all change to SPORT mode.

WIRING DIAGRAM





HINT
* Pattern Select SPORT Switch
When the SPORT switch is pushed, the switch contact is made and the SPORT mode is selected.
To cancel the SPORT mode, push the SPORT switch once again.
The SPORT mode is automatically cancelled when the engine switch is turned off.

INSPECTION PROCEDURE

PROCEDURE

1. INSPECT STEERING PAD SWITCH ASSEMBLY (PATTERN SELECT SPORT SWITCH)

(a) Remove the steering pad Components.

(b) Disconnect the connector of steering pad switch.

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





Text in Illustration





Standard Resistance:





(d) Apply battery voltage between the terminals of the switch, and check the illumination condition of the pattern select sport switch.

HINT
* If a positive (+) battery lead and a negative (-) battery lead are incorrectly connected, the pattern select sport switch indicator light will not illuminate.
If the voltage is too low, the indicator light will not illuminate.

OK:





If the result is not as specified, replace the steering pad switch.

NG -- REPLACE STEERING PAD SWITCH ASSEMBLY Components
OK -- Continue to next step.

2. INSPECT SPIRAL CABLE SUB-ASSEMBLY

(a) Disconnect the spiral cable connector.





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

Standard Resistance:





Text in Illustration





NG -- REPLACE SPIRAL CABLE SUB-ASSY
OK -- Continue to next step.

3. CHECK HARNESS AND CONNECTOR (SPIRAL CABLE SUB-ASSEMBLY - BODY GROUND)

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





Standard Resistance:





Text in Illustration





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.

4. CHECK HARNESS AND CONNECTOR (SPIRAL CABLE SUB-ASSEMBLY - MAIN BODY ECU RH)

(a) Connect the connector of pattern select switch.





(b) Disconnect the cowl side junction block (main body ECU RH) connector.

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

Standard Resistance:





Text in Illustration





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR

OK -- PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE Symptom Related Diagnostic Procedures