Automatic Transmission System (For 1Ur-Fe) - Transmission Control Switch Circuit
DESCRIPTION
WIRING DIAGRAM
INSPECTION PROCEDURE
INSPECT TRANSMISSION CONTROL SWITCH
CHECK HARNESS AND CONNECTOR (TRANSMISSION CONTROL SWITCH - BATTERY, BODY GROUND)
CHECK HARNESS AND CONNECTOR (TRANSMISSION CONTROL SWITCH - ECM)
AUTOMATIC TRANSMISSION SYSTEM (for 1UR-FE) - Transmission Control Switch Circuit
DESCRIPTION
After moving the shift lever to S using the transmission control switch, it is possible to switch the shift range between "1" (1st range) and "6" (6th range).
Shifting to "+" once raises the shift range by one, and shifting to "-" lowers the shift range by one.
WIRING DIAGRAM
INSPECTION PROCEDURE
| 1.INSPECT TRANSMISSION CONTROL SWITCH |
Disconnect the transmission control switch connector.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
| Tester Connection | Condition | Specified Condition |
| 3 (IG) - 7 (S) | Shift lever in S, "+" or "-" | Below 1 Ω |
| 2 (SFTU) - 5 (E) | Shift lever held in "+"
(Up-shift) | Below 1 Ω |
| 1 (SFTD) - 5 (E) | Shift lever held in "-"
(Down-shift) | Below 1 Ω |
| 3 (IG) - 7 (S) | Shift lever not in S, "+" or "-" | 10 kΩ or higher |
| 2 (SFTU) - 5 (E) | Shift lever in S | 10 kΩ or higher |
| 1 (SFTD) - 5 (E) | Shift lever in S | 10 kΩ or higher |
Text in Illustration| *a | Component without harness connected
(Transmission Control Switch) |
| | REPLACE TRANSMISSION CONTROL SWITCH (LOWER SHIFT LEVER ASSEMBLY) ()
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| 2.CHECK HARNESS AND CONNECTOR (TRANSMISSION CONTROL SWITCH - BATTERY, BODY GROUND) |
Disconnect the transmission control switch connector.
Measure the voltage according to the value(s) in the table below.
- Standard Voltage:
| Tester Connection | Switch Condition | Specified Condition |
| E52-3 (IG) - Body ground | Engine switch on (IG) | 11 to 14 V |
| E52-3 (IG) - Body ground | Engine switch off | Below 1 V |
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
| Tester Connection | Condition | Specified Condition |
| E52-5 (E) - Body ground | Always | Below 1 Ω |
Text in Illustration| *a | Front view of wire harness connector
(to Transmission Control Switch) |
| | REPAIR OR REPLACE HARNESS OR CONNECTOR |
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| 3.CHECK HARNESS AND CONNECTOR (TRANSMISSION CONTROL SWITCH - ECM) |
Disconnect the ECM connector.
Measure the voltage according to the value(s) in the table below.
- Standard Voltage:
for LHD| Tester Connection | Condition | Specified Condition |
| A38-25 (S) - Body ground | Engine switch on (IG)
Shift lever in S, "+" or "-"
| 11 to 14 V |
| A38-25 (S) - Body ground | Engine switch on (IG)
Shift lever not in S, "+" or "-"
| Below 1 V |
for RHD| Tester Connection | Condition | Specified Condition |
| A52-25 (S) - Body ground | Engine switch on (IG)
Shift lever in S, "+" or "-"
| 11 to 14 V |
| A52-25 (S) - Body ground | Engine switch on (IG)
Shift lever not in S, "+" or "-"
| Below 1 V |
Turn the engine switch off.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
for LHD| Tester Connection | Condition | Specified Condition |
| A38-38 (SFTU) - Body ground | Shift lever held in "+"
(Up-shift) | Below 1 Ω |
| A38-27 (SFTD) - Body ground | Shift lever held in "-"
(Down-shift) | Below 1 Ω |
| A38-38 (SFTU) - Body ground | Shift lever in S | 10 kΩ or higher |
| A38-27 (SFTD) - Body ground | Shift lever in S | 10 kΩ or higher |
for RHD| Tester Connection | Condition | Specified Condition |
| A52-38 (SFTU) - Body ground | Shift lever held in "+"
(Up-shift) | Below 1 Ω |
| A52-27 (SFTD) - Body ground | Shift lever held in "-"
(Down-shift) | Below 1 Ω |
| A52-38 (SFTU) - Body ground | Shift lever in S | 10 kΩ or higher |
| A52-27 (SFTD) - Body ground | Shift lever in S | 10 kΩ or higher |
Text in Illustration| *1 | for LHD |
| *2 | for RHD |
| *a | Front view of wire harness connector
(to ECM) |
| | REPAIR OR REPLACE HARNESS OR CONNECTOR |
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| OK | |
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| PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE ()
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