Automatic Transaxle System Transmission Control Switch Circuit
DESCRIPTION
WIRING DIAGRAM
INSPECTION PROCEDURE
CHECK HARNESS AND CONNECTOR (BATTERY - TRANSMISSION CONTROL SWITCH)
CHECK HARNESS AND CONNECTOR (TRANSMISSION CONTROL SWITCH - BODY GROUND)
INSPECT SHIFT LOCK CONTROL UNIT (TRANSMISSION CONTROL SWITCH)
CHECK HARNESS AND CONNECTOR (TRANSMISSION CONTROL SWITCH - ECM)
AUTOMATIC TRANSAXLE SYSTEM - Transmission Control Switch Circuit |
DESCRIPTION
When moving the shift lever into the S position using the transmission control switch, it is possible to switch the shift range position between "1" (first range) and "5" (fifth range).Shifting up "+" once raises one shift range position, and shifting down "-" lowers one shift range position.
WIRING DIAGRAM
INSPECTION PROCEDURE
| 1.CHECK HARNESS AND CONNECTOR (BATTERY - TRANSMISSION CONTROL SWITCH) |
Disconnect the transmission control switch connector of shift lock control unit assembly.
Measure the voltage according to the value(s) in the table below.
- Standard voltage:
Tester Connection
| Switch Condition
| Specified Condition
|
6 - Body ground
| IG switch ON
| 11 to 14 V
|
IG switch OFF
| Below 1 V
|
| | REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
| 2.CHECK HARNESS AND CONNECTOR (TRANSMISSION CONTROL SWITCH - BODY GROUND) |
Measure the resistance according to the value(s) in the table below.
- Standard resistance:
Tester Connection
| Condition
| Specified Condition
|
11 - Body ground
| Always
| Below 1 Ω
|
| | REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
| 3.INSPECT SHIFT LOCK CONTROL UNIT (TRANSMISSION CONTROL SWITCH) |
Measure resistance between each terminal of shift lock control unit assembly when the shift lever is moved to each position.
- Standard resistance (Check for short):
Tester Connection
| Shift Position
| Specified Condition
|
6 - 13
| S, "+" and "-"
| Below 1 Ω
|
Except S, "+" and "-"
| 10 kΩ or higher
|
5 - 11
| Press continuously
"+"
(Up shift)
| Below 1 Ω
|
S
| 10 kΩ or higher
|
4 - 11
| Press continuously
"-"
(Down shift)
| Below 1 Ω
|
S
| 10 kΩ or higher
|
| 4.CHECK HARNESS AND CONNECTOR (TRANSMISSION CONTROL SWITCH - ECM) |
Connect the transmission control switch connector of shift lock control unit assembly.
Disconnect the ECM connector.
Turn the ignition switch to ON, and measure the voltage according to the value(s) in the table below when the shift lever is moved to each position.
- Standard voltage:
Tester Connection
| Shift Position
| Specified Condition
|
B31-74 (S) - Body ground
| S, "+" and "-"
| 11 to 14 V
|
Except S, "+" and "-"
| Below 1 V
|
Turn the ignition switch off.
Disconnect the ECM connector.
Measure the resistance according to the value(s) in the table below when the shift lever is moved to each position.
- Standard resistance (Check for short):
Tester Connection
| Shift Position
| Specified Condition
|
A50-16 (SFTU) - Body ground
| Press continuously
"+"
(Up shift)
| Below 1 Ω
|
S
| 10 kΩ or higher
|
A50-51 (SFTD) - Body ground
| Press continuously
"-"
(Down shift)
| Below 1 Ω
|
S
| 10 kΩ or higher
|
| | REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
