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Automatic Transmission Shift Interlock Systems: Other Lexus RX I

Automatic Trans 18 illustrations ~1555 words

SHIFT LOCK SYSTEM

With ignition on and brake pedal depressed, an input signal is sent from brakelight switch to ECU. With shift lever in Park, an input signal from shift control switch is input to ECU, indicating shift lever is in Park. ECU then operates shift lock solenoid, allowing shift lever movement from Park.

KEY LOCK SYSTEM

With ignition in ON or ACC position and shift lever in Park, shift lock control switch opens and voltage from ECU to key interlock solenoid is interrupted. When voltage to key interlock solenoid is interrupted, ignition key can be turned from ACC to LOCK position.

COMPONENT TESTS

Note. If ignition switch is left in ACC or ON position with shift lever in any gear range except Park for about one hour, ECU then operates to release lock mechanism.

Note. For identification of electrical connectors, see CONNECTOR IDENTIFICATION . For wiring repairs, see WIRING DIAGRAMS .

SHIFT LOCK ELECTRONIC CONTROL UNIT

Access shift lock ECU. see scheme 1and see scheme 2. Turn ignition switch to ON position. Using DVOM, measure voltage by backprobing between specified shift lock ECU terminals and ground with vehicle operated under specified condition. See appropriate SHIFT LOCK SYSTEM PIN VOLTAGES table. Ensure voltage is as specified.

Terminal No.ConditionVoltage
1Ignition Switch In ACC Position10-14
3Ignition Switch In ON Position10-14
4Ignition Switch In ACC Position, Shifter In "P" Position0
4Ignition Switch In ACC Position, Shifter Not In "P" Position7.5-11
4(1) Ignition Switch In ACC Position, Shifter Not In "P" Position6-9.5
6Brake Pedal Depressed10-14
(1) Voltage measurement after one second.
(1)Voltage measurement after one second.

SHIFT LOCK SYSTEM PIN VOLTAGES (AVALON - COLUMN SHIFT, CAMRY & CAMRY SOLARA)

Terminal No.ConditionVoltage
1Ignition Switch In ACC Position10-14
2Brake Pedal Depressed10-14
4Ignition Switch In ACC Position, Shifter In "P" Position0
4Ignition Switch In ACC Position, Shifter Not In "P" Position7.5-11
4(1) Ignition Switch In ACC Position, Shifter Not In "P" Position6-9.5
5Ignition Switch In ON Position10-14
(1) Voltage measurement after one second.
(1)Voltage measurement after one second.

SHIFT LOCK SYSTEM PIN VOLTAGES (AVALON - FLOOR SHIFT, COROLLA, ES300, RAV4 & RX300)

Terminal No.ConditionVoltage
3Brake Pedal Depressed10-14
5Ignition Switch In ON Position10-14

SHIFT LOCK SYSTEM PIN VOLTAGES (CELICA)

Terminal No.ConditionVoltage
1Ignition Switch In ON Position10-14
3Brake Pedal Depressed10-14

SHIFT LOCK SYSTEM PIN VOLTAGES (ECHO)

Terminal No.ConditionVoltage
1Ignition Switch In ACC Position, Shifter In "P" Position0
1(1) Ignition Switch In ACC Position, Shifter Not In "P" Position7.5-10
4Ignition Switch In ACC Position10-14
4Ignition Switch In ON Position10-14
8Brake Pedal Depressed10-14
(1) Voltage measurement after one second.
(1)Voltage measurement after one second.

SHIFT LOCK SYSTEM PIN VOLTAGES (GS300 & GS400)

Terminal No.ConditionVoltage
1Ignition Switch In ACC Position10-14
3Ignition Switch In ON Position10-14
6Ignition Switch In ACC Position, Shifter In "P" Position0
6Ignition Switch In ACC Position, Shifter Not In "P" Position10-14
6(1) Ignition Switch In ACC Position, Shifter Not In "P" Position6-9
8Brake Pedal Depressed10-14
(1) Voltage measurement after one second.
(1)Voltage measurement after one second.

SHIFT LOCK SYSTEM PIN VOLTAGES (LAND CRUISER, LX470 & 4RUNNER)

Terminal No.ConditionVoltage
1Ignition Switch In ACC Position10-14
2Ignition Switch In ON Position10-14
8Brake Pedal Depressed10-14
3Ignition Switch In ACC Position, Shifter In "P" PositionLess Than 1.5
3Ignition Switch In ON Position, Shifter Not In "P" Position8.5-10.5
3(1) Ignition Switch In ACC Position, Shifter Not In "P" Position7-8.5
4Ignition Switch In ON Position, Shifter In "D" Or "3" Position & Vehicle Speed More Than 6.8 MPHLess Than 2
4Ignition Switch In ON Position, Shifter In "D" Or "3" Position & Vehicle Speed Less Than 6.8 MPH10-14
7Ignition Switch In ON Position, Shifter In "D" Or "3" Position10-14
7Ignition Switch In ON Position, Shifter In "P", "R", "N", "2" & "L" Position0
(1) Voltage measurement after one second.
(1)Voltage measurement after one second.

SHIFT LOCK SYSTEM PIN VOLTAGES (LS400)

Terminal No.ConditionVoltage
2Ignition Switch In ON Position, Shifter In "D" Or "4" Position10-14
2Ignition Switch In ON Position, Shifter Not In "D" Or "4" Position0
3Ignition Switch In ON Position, Shifter In "D" Or "4" Position & Vehicle Speed More Than 6.8 MPHLess Than 2
3Ignition Switch In ON Position, Shifter In "D" Or "4" Position & Vehicle Speed Less Than 6.8 MPH10-14
4Ignition Switch In ACC Position10-14
5Ignition Switch In ON Position10-14
8Ignition Switch In ON Position, Shifter In "P" PositionLess Than 1.5
8Ignition Switch In ON Position, Shifter Not In "P" Position8.5-10.5
8(1) Ignition Switch In ON Position, Shifter Not In "P" Position6.5-8.5
10Brake Pedal Depressed10-14
(1) Voltage measurement after one second.
(1)Voltage measurement after one second.

SHIFT LOCK SYSTEM PIN VOLTAGES (SC300 & SC400)

Terminal No.ConditionVoltage
1Brake Pedal Depressed10-14
3Ignition Switch In ON Position10-14
4Ignition Switch In ACC Position10-14
10Ignition Switch In ACC Position, Shifter In "P" Position0
10Ignition Switch In ACC Position, Shifter Not In "P" Position10-14
10(1) Ignition Switch In ACC Position, Shifter Not In "P" Position6-9
(1) Voltage measurement after one second.
(1)Voltage measurement after one second.

SHIFT LOCK SYSTEM PIN VOLTAGES (TACOMA - COLUMN SHIFT)

Terminal No.ConditionVoltage
1Ignition Switch In ACC Position10-14
3Ignition Switch In ON Position10-14
6Ignition Switch In ACC Position, Shifter In "P" Position0
6Ignition Switch In ACC Position, Shifter Not In "P" Position7.5-11
6(1) Ignition Switch In ACC Position, Shifter Not In "P" Position6-9.5
8Brake Pedal Depressed10-14
(1) Voltage measurement after one second.
(1)Voltage measurement after one second.

SHIFT LOCK SYSTEM PIN VOLTAGES (TACOMA - FLOOR SHIFT)

SHIFT LOCK SOLENOID

  1. Access shift lock ECU. see scheme 1and see scheme 2. Turn ignition switch to ON position. Using DVOM, measure voltage by backprobing between specified shift lock ECU terminals with vehicle operated under specified condition. See «SHIFT LOCK SOLENOID PIN VOLTAGES»(ref-127881-S12956662402001103000000) table. Ensure voltage is as specified. For connector terminal identification, see «CONNECTOR IDENTIFICATION»(ref-127881-S01177536112001103000000). NOTE: On Avalon (floor shift), Celica, Corolla, ES300, GS300, GS400, RAV4 and RX300; shift lock solenoid is incorporated with shift lock ECU. Voltage tests for shift lock solenoid circuits are not available.
  2. Disconnect electrical connector from shift lock solenoid. Using DVOM, measure resistance between shift lock solenoid terminals. See «SHIFT LOCK SOLENOID RESISTANCE SPECIFICATIONS»(ref-127881-S14224247772001103000000) table. If shift lock solenoid resistance is not within specification, replace shift lock solenoid. If shift lock solenoid resistance is within specification, go to next step.
  3. Connect jumper wire between positive battery terminal and appropriate shift lock solenoid terminal. Connect an additional jumper wire between ground and appropriate shift lock solenoid terminal. Replace shift lock solenoid if operating sound cannot be heard.
Application & Terminal No.ConditionVoltage
Avalon
1 & 2Ignition Switch In ACC Position, Shifter In "P" Position0
1 & 2Brake Pedal Depressed8.5-13.5
1 & 2Ignition Switch In ACC Position, Shifter Not In "P" Position0
Camry, Camry Solara, Land Cruiser, LX470 & Tacoma
2 & 5Ignition Switch In ON Position, Shifter In "P" Position0
2 & 5Brake Pedal Depressed8.5-13.5
2 & 5Ignition Switch In ON Position, Shifter Not In "P" Position0
ECHO
1 & 2Ignition Switch In ON Position, Shifter In "P" Position0
1 & 2Brake Pedal Depressed10-14
1 & 2Ignition Switch In ON Position, Shifter Not In "P" Position0
LS400
3 & 6Ignition Switch In ON Position, Shifter In "P" Position0
3 & 6Ignition Switch In ON Position, Brake Pedal Depressed8.8-12.5
3 & 6Ignition Switch In ON Position, Brake Pedal Depressed (After 20 Seconds)6.5-9.2
3 & 6Ignition Switch In ON Position, Shifter In "D", "3", "2" & "L" Position0
SC300 & SC400
3 & 6Ignition Switch In ON Position, Shifter In "P" Position0
3 & 6Ignition Switch In ON Position, Brake Pedal Depressed8.0-12.5
3 & 6Ignition Switch In ON Position, Brake Pedal Depressed (After 20 Seconds)6.5-9.2
3 & 6Ignition Switch In ON Position, Shifter In "D", "4", "3", "2" & "L" Position0
4Runner
2 & 5Ignition Switch In ON Position, Shifter In "P" Position0
2 & 5Ignition Switch In ON Position, Brake Pedal Depressed8.5-13.5
2 & 5Ignition Switch In ON Position, Brake Pedal Depressed (After 20 Seconds)6-8.5
2 & 5Ignition Switch In ON Position, Shifter Not In "P" Position0

SHIFT LOCK SOLENOID PIN VOLTAGES

ApplicationOhms
Avalon (Column Shift Only), Camry & Camry Solara29-35
ECHO(1)
4Runner21-27
Land Cruiser, LS400, LX470, SC300, SC400 & Tacoma20-28
(1) Information is not available.
(1)Information is not available.

SHIFT LOCK SOLENOID RESISTANCE SPECIFICATIONS

KEY INTERLOCK SOLENOID

  1. Disconnect electrical connector from key interlock solenoid. Using DVOM, measure resistance between appropriate key interlock solenoid terminals. See «KEY INTERLOCK SOLENOID RESISTANCE»(ref-127881-S40176093112001103100000) table. If resistance is not within specification, replace key interlock solenoid. If resistance is within specification, go to next step.
  2. Connect jumper wire between positive battery terminal and key interlock solenoid terminal No. 1. Connect an additional jumper wire between ground and other key interlock solenoid terminal No. 2. Replace shift lock solenoid if operating sound cannot be heard.
ApplicationOhms
Avalon (Column Shift), Camry, Camry Solara, Corolla, ES300, RAV4, RX300 & 4Runner12.5-16.5
Avalon (Floor Shift)13-16
Celica & ECHO(1)
GS300, GS400, Land Cruiser, LS400, LX470 & Tacoma12-17
SC300 & SC40012-14
(1) Information is not available.
(1)Information is not available.

KEY INTERLOCK SOLENOID RESISTANCE

SHIFT LOCK CONTROL SWITCH

Note. On Avalon (floor shift), Celica, Corolla, ECHO, ES300, GS300, GS400, RAV4 and RX300; shift lock control switch is incorporated in shift lock ECU. No voltage tests for shift lock control switch circuits are available.

  1. Access shift lock ECU. see scheme 1and see scheme 2. Turn ignition switch to ON position. Using DVOM, measure voltage by backprobing between specified shift lock control switch terminals with switch in specified condition. See «SHIFT LOCK CONTROL SWITCH VOLTAGES»(ref-127881-S25978992882001103000000) table. Ensure resistance is as specified.
  2. Disconnect electrical connector from shift lock control switch. Using DVOM, ensure continuity exists between specified shift lock control switch terminals in appropriate position and condition. See «SHIFT LOCK CONTROL SWITCH CONTINUITY»(ref-127881-S41543916482001103000000) table. Replace shift lock control switch if continuity does not exist as specified. SHIFT LOCK CONTROL SWITCH VOLTAGES Application & Terminals No. Condition Voltage Avalon (Column Shift) 1 & 3 Ignition Switch In ACC Position, Shifter Not In "P" Position 0 1 & 3 Ignition Switch In ACC Position, Shifter In "P" Position 9-13.5 1 & 4 Ignition Switch In ON Position, Shifter Not In "P" Position, Brake Pedal Depressed 9-13.5 1 & 4 Ignition Switch In ON Position, Shifter In "P" Position, Brake Pedal Depressed 0 Camry & Camry Solara 1 & 3 Ignition Switch In ON Position, Shifter In "P" Position, Brake Pedal Depressed 0 1 & 3 Ignition Switch In ON Position, Shifter Not In "P" Position, Brake Pedal Depressed 9-13.5 1 & 4 Ignition Switch In ACC Position, Shifter Not In "P" Position 9-13.5 1 & 4 Ignition Switch In ACC Position, Shifter In "P" Position 0 Land Cruiser & LX470 1 & 3 Ignition Switch In ON Position, Shifter In "P" Position, Brake Pedal Depressed 0 1 & 3 Ignition Switch In ON Position, Shifter Not In "P" Position, Brake Pedal Depressed 9-13.5 1 & 4 Ignition Switch In ACC Position, Shifter In "P" Position 9-13.5 1 & 4 Ignition Switch In ACC Position, Shifter Not In "P" Position 0 LS400, SC300 & SC400 1 & 4 Ignition Switch In ACC Position, Shifter In "P" Position 10-14 1 & 4 Ignition Switch In ACC Position, Shifter Not In "P" Position 0 1 & 5 Ignition Switch In ON Position, Shifter In "P" Position 0 1 & 5 Ignition Switch In ON Position, Shifter Not In "P" Position 10-14 Tacoma (Column Shift) 5 & 7 Ignition Switch In ON Position, Shifter In "P" Position, Brake Pedal Depressed 0 5 & 7 Ignition Switch In ON Position, Shifter Not In "P" Position, Brake Pedal Depressed 9-13.5 5 & 8 Ignition Switch In ACC Position, Shifter In "P" Position 9-13.5 5 & 8 Ignition Switch In ACC Position, Shifter Not In "P" Position 0 Tacoma (Floor Shift) & 4Runner 1 & 4 Ignition Switch In ACC Position, Shifter In "P" Position 9-13.5 1 & 4 Ignition Switch In ACC Position, Shifter Not In "P" Position 0 1 & 5 Ignition Switch In ON Position, Shifter In "P" Position, Brake Pedal Depressed 0 1 & 5 Ignition Switch In ON Position, Shifter Not In "P" Position 9-13.5 SHIFT LOCK CONTROL SWITCH CONTINUITY Application & Shift Lever Position (1) Terminals No. Avalon (Column Shift), Camry & Camry Solara Except Park 1 & 4 Park Release Button Not Pushed 1 & 3 Release Button Pushed 1 & 3 Or 1 & 4 LS400, SC300 & SC400 Except Park 1 & 4 Park Shift Lever Pushed Toward Left Side 1 & 5 Shift Lever Pushed Toward Right Side 1 & 4 Or 1 & 5 Land Cruiser & LX470 Except Park 1 & 4 Park Release Button Not Pushed 1 & 3 Release Button Pushed 1 & 4 Tacoma (Column Shift) Except Park 7 & 8 Park Shift Lever Not Pulled Toward Driver 2 & 8 Shift Lever Pulled Toward Driver 2 & 8 Or 7 & 8 Tacoma (Floor Shift) Except Park 1 & 4 Park Release Button Not Pushed 1 & 5 Release Button Pushed 1 & 5 Or 1 & 4 4Runner (A340E) Except Park 1 & 2 Park Release Button Not Pushed 2 & 3 Release Button Pushed 1 & 2 Or 2 & 3 4Runner (A340F) Except Park 1 & 4 Park Release Button Not Pushed 1 & 5 Release Button Pushed 1 & 4 Or 1 & 5 (1) For connector views, refer to appropriate illustration. See «CONNECTOR IDENTIFICATION»(ref-127881-S01177536112001103000000).

Sienna & Tundra

Ensure shift lock cable does not interfere with wiring harness. Ensure ignition switch turns to LOCK position when shift lever is in "P" position. Ensure brake pedal returns fully. Ensure shift lock is released when brake pedal is depressed with ignition switch in ACC, ON or START position.

Place shift lever in "P" position. Turn ignition switch to LOCK position. Loosen 2 bolts and ensure pedal button touches pedal plate cushion. Tighten 2 bolts to 97 INCH lbs. (11 N.m).

Shift Lock System Wiring Diagram (Lexus ES300). Scheme 111

Scheme 111: Shift Lock System Wiring Diagram (Lexus ES300)

Shift Lock System Wiring Diagram (Lexus GS300). Scheme 112

Scheme 112: Shift Lock System Wiring Diagram (Lexus GS300)

Shift Lock System Wiring Diagram (Lexus GS400). Scheme 113

Scheme 113: Shift Lock System Wiring Diagram (Lexus GS400)

Shift Lock System Wiring Diagram (Lexus LS400). Scheme 114

Scheme 114: Shift Lock System Wiring Diagram (Lexus LS400)

Shift Lock System Wiring Diagram (Lexus LX470). Scheme 115

Scheme 115: Shift Lock System Wiring Diagram (Lexus LX470)

Shift Lock System Wiring Diagram (Lexus RX300). Scheme 116

Scheme 116: Shift Lock System Wiring Diagram (Lexus RX300)

Shift Lock System Wiring Diagram (Lexus SC300 & SC400). Scheme 117

Scheme 117: Shift Lock System Wiring Diagram (Lexus SC300 & SC400)

Shift Lock System Wiring Diagram (Toyota Avalon). Scheme 118

Scheme 118: Shift Lock System Wiring Diagram (Toyota Avalon)

Shift Lock System Wiring Diagram (Toyota Camry). Scheme 119

Scheme 119: Shift Lock System Wiring Diagram (Toyota Camry)

Shift Lock System Wiring Diagram (Toyota Camry Solara). Scheme 120

Scheme 120: Shift Lock System Wiring Diagram (Toyota Camry Solara)

Shift Lock System Wiring Diagram (Toyota Celica). Scheme 121

Scheme 121: Shift Lock System Wiring Diagram (Toyota Celica)

Shift Lock System Wiring Diagram (Toyota Corolla). Scheme 122

Scheme 122: Shift Lock System Wiring Diagram (Toyota Corolla)

Shift Lock System Wiring Diagram (Toyota ECHO). Scheme 123

Scheme 123: Shift Lock System Wiring Diagram (Toyota ECHO)

Shift Lock System Wiring Diagram (Toyota Land Cruiser). Scheme 124

Scheme 124: Shift Lock System Wiring Diagram (Toyota Land Cruiser)

Shift Lock System Wiring Diagram (Toyota RAV4). Scheme 125

Scheme 125: Shift Lock System Wiring Diagram (Toyota RAV4)

Shift Lock System Wiring Diagram (Toyota Tacoma - Column Shift). Scheme 126

Scheme 126: Shift Lock System Wiring Diagram (Toyota Tacoma - Column Shift)

Shift Lock System Wiring Diagram (Toyota Tacoma - Floor Shift). Scheme 127

Scheme 127: Shift Lock System Wiring Diagram (Toyota Tacoma - Floor Shift)

Shift Lock System Wiring Diagram (Toyota 4Runner). Scheme 128

Scheme 128: Shift Lock System Wiring Diagram (Toyota 4Runner)