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Automatic Transmission Shift Interlock Systems: Other Lexus LX J80

Automatic Trans 23 illustrations ~925 words

SHIFT LOCK SYSTEM

With ignition on, when brake pedal is 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, so shift lever can be moved 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 turned off. When key interlock solenoid is turned off, ignition key can be turned from ACC to LOCK position on ignition switch.

COMPONENT TESTS

Note. If ignition 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.

ELECTRONIC CONTROL UNIT (ECU)

Access ECU. see scheme 1 ECU is under center console, in front or back of shifter. Turn ignition on. Backprobing ECU harness connector with DVOM, check voltage between designated terminals. Voltage should be as specified. See appropriate SHIFT LOCK SYSTEM PIN VOLTAGES table. For circuit identification, see appropriate wiring diagram in WIRING DIAGRAMS.

Note. Ground (GND) terminal is also referred to as "E" terminal.

Application & TerminalsDescriptionVoltage
ECU
ACC - GNDIgnition Switch In ACC Position10-14
IG - GNDIgnition Switch In ON Position10-14
STP - GNDDepress Brake Pedal10-14
KLS - GNDIgnition Switch In ACC, Shifter In "P"0
KLS - GNDIgn. Switch In ACC, Shifter Not In "P"7.5-11.5
KLS - GND(1) Ign. Switch In ACC, Shifter Not In "P"6-9
Shift Lock Solenoid
SLS+ - GNDIgnition Switch In ACC, Shifter In "P"0
SLS+ - GNDDepress Brake Pedal8-13.5
SLS+ - GNDIgn. Switch In ACC, Shifter Not In "P"0
Shift Lock Control Switch
P1 - PIgnition Switch ON, Shifter In "P", Depress Brake Pedal0
P1 - PIgnition Switch In ON, Shifter Not In "P"9-13.5
P2 - PIgnition Switch In ACC, Shifter In "P"9-13.5
(1) Voltage measurement after one second.
(1)Voltage measurement after one second.

SHIFT LOCK SYSTEM PIN VOLTAGES (AVALON, CAMRY & MR2)

Note. Ground (GND) terminal is also referred to as "E" terminal.

Application & TerminalsDescriptionVoltage
ECU
ACC - GNDIgnition Switch In ACC Position10-14
IG - GNDIgnition Switch In ON Position10-14
STP - GNDDepress Brake Pedal10-14
KLS - GNDIgnition Switch In ACC, Shifter In "P"0
KLS - GNDIgnition Switch In ACC, Shifter Not In "P"(2) 10-14
KLS - GND(1) Ignition Switch In ACC, Shifter Not In "P"6-9
Shift Lock Solenoid
SLS+ - SLSIgnition Switch In ACC, Shifter In "P"0
SLS+ - SLSDepress Brake Pedal8-13.5
SLS+ - SLSDepress Brake Pedal, (After 20 Seconds)5.5-9.5
SLS+ - SLSIgnition Switch In ACC, Shifter Not In "P"0
Shift Lock Control Switch
P1 - PIgnition Switch In ON Position, Shifter In "P", Depress Brake Pedal0
P1 - PIgnition Switch In ON, Shifter Not In "P"9-13.5
P2 - PIgnition Switch In ACC, Shifter In "P"9-13.5
P2 - PIgnition Switch In ACC, Shifter Not In "P"0
(1) Voltage measurement after one second. (2) Voltage is 7.5-11 volts on 1996 ES300.
(1)Voltage measurement after one second.
(2)Voltage is 7.5-11 volts on 1996 ES300.

SHIFT LOCK SYSTEM PIN VOLTAGES (CELICA, COROLLA, ES300, GS300, LAND CRUISER, LX450, PASEO, TACOMA & TERCEL)

Note. Ground (GND) terminal is also referred to as "E" terminal.

Application & TerminalsDescriptionVoltage
ECU
ACC - GNDIgnition Switch In ACC Position10-14
IG - GNDIgnition Switch In ON Position10-14
STP - GNDDepress Brake Pedal10-14
KLS - GNDIgnition Switch In ACC, Shifter In "P"1.5 Or Less
KLS - GNDIgnition Switch In ACC, Shifter Not In "P"8.5-10.5
KLS - GND(1) Ignition Switch In ACC, Shifter Not In "P"7-8.5
Shift Lock Solenoid
SLS+ - SLSIgnition Switch In ACC, Shifter In "P"0
SLS+ - SLSDepress Brake Pedal8.8-12.5
SLS+ - SLSDepress Brake Pedal, (After 20 Seconds)6.5-9.2
SLS+ - SLSIgnition Switch In ACC, Shifter Not In "P"0
Shift Lock Control Switch
P1 - PIgnition Switch In ON Position, Shifter In "P", Depress Brake Pedal0
P1 - PIgnition Switch In ON, Shifter Not In "P"10-14
P2 - PIgnition Switch In ACC, Shifter In "P"10-14
P2 - PIgnition Switch In ACC, Shifter Not In "P"0
(1) Voltage measurement after one second.
(1)Voltage measurement after one second.

SHIFT LOCK SYSTEM PIN VOLTAGES (LS400)

Note. Ground (GND) terminal is also referred to as "E" terminal.

Application & TerminalsDescriptionVoltage
ECU
ACC - GNDIgnition Switch In ACC Position10-14
IG - GNDIgnition Switch In ON Position10-14
STP - GNDDepress Brake Pedal10-14
KLS - GNDIgnition Switch In ACC, Shifter In "P"0
KLS - GNDIgnition Switch In ACC, Shifter Not In "P"10-14
KLS - GND(1) Ignition Switch In ACC, Shifter Not In "P"6-9
Shift Lock Solenoid
SLS+ - SLSIgnition Switch In ACC, Shifter In "P"0
SLS+ - SLSDepress Brake Pedal10-14
SLS+ - SLSIgnition Switch In ACC, Shifter Not In "P"0
Shift Lock Control Switch
P1 - PIgnition Switch In ON Position, Shifter In "P", Depress Brake Pedal0
P1 - PIgnition Switch In ON, Shifter Not In "P"10-14
P2 - PIgnition Switch In ACC, Shifter In "P"10-14
P2 - PIgnition Switch In ACC, Shifter Not In "P"0
(1) Voltage measurement after one second.
(1)Voltage measurement after one second.

SHIFT LOCK SYSTEM PIN VOLTAGES (PICKUP & 1995 4RUNNER)

Note. Ground (GND) terminal is also referred to as "E" terminal.

Application & TerminalsDescriptionVoltage
ECU
ACC - GNDIgnition Switch In ACC Position10-14
IG - GNDIgnition Switch In ON Position10-14
STP - GNDDepress Brake Pedal10-14
KLS - GNDIgnition Switch In ACC, Shifter In "P"0
KLS - GNDIgnition Switch In ACC, Shifter Not In "P"7.5-11
KLS - GND(1) Ignition Switch In ACC, Shifter Not In "P"5.5-10
Shift Lock Solenoid
SLS+ - GNDIgnition Switch In ACC, Shifter In "P"0
SLS+ - GNDDepress Brake Pedal8-14
SLS+ - GNDIgnition Switch In ACC, Shifter Not In "P"0
Shift Lock Control Switch
P1 - PIgnition Switch In ON Position, Shifter In "P", Depress Brake Pedal0
P1 - PIgnition Switch In ON, Shifter Not In "P"10-14
P2 - PIgnition Switch In ACC, Shifter In "P"10-14
(1) Voltage measurement after one second.
(1)Voltage measurement after one second.

SHIFT LOCK SYSTEM PIN VOLTAGES (RAV4)

Note. Ground (GND) terminal is also referred to as "E" terminal.

Application & TerminalsDescriptionVoltage
ECU
ACC - GNDIgnition Switch In ACC Position10-14
IG - GNDIgnition Switch In ON Position10-14
STP - GNDDepress Brake Pedal10-14
KLS - GNDIgnition Switch In ACC, Shifter In "P"0
KLS - GNDIgnition Switch In ACC, Shifter Not In "P"7.5-11
KLS - GND(1) Ignition Switch In ACC, Shifter Not In "P"6-9.5
Shift Lock Solenoid
SLS+ - SLSIgnition Switch In ACC, Shifter In "P"0
SLS+ - SLSDepress Brake Pedal8-13.5
SLS+ - SLSDepress Brake Pedal (After 20 Seconds)6-8.5
SLS+ - SLSIgnition Switch In ACC, Shifter Not In "P"0
Shift Lock Control Switch
P1 - PIgnition Switch In ON Position, Shifter In "P", Depress Brake Pedal0
P1 - PIgnition Switch In ON, Shifter Not In "P"9-13.5
P2 - PIgnition Switch In ACC, Shifter In "P"9-13.5
P2 - PIgnition Switch In ACC, Shifter Not In "P"0
(1) Voltage measurement after one second.
(1)Voltage measurement after one second.

SHIFT LOCK SYSTEM PIN VOLTAGES (SC300, SC400, SUPRA & 1996 4RUNNER)

SHIFT LOCK SOLENOID

  1. Disconnect electrical connector from shift lock solenoid. Using ohmmeter, measure resistance between shift lock solenoid terminals. See «WIRING DIAGRAMS»(ref-2100-S29250658632000031600000) .
  2. Replace shift lock solenoid if resistance is not within specification. See «SHIFT LOCK SOLENOID RESISTANCE SPECIFICATIONS»(ref-2100-S33512505942000031600000) table. Apply battery voltage between shift lock solenoid terminals. Replace shift lock solenoid if operating sound cannot be heard.
ApplicationOhms
Avalon, Camry, Paseo, Tacoma (A-43D) & Tercel30-35
Celica, Corolla, 1995 ES300, GS300, MR2 & 1996 4Runner21-27
Land Cruiser, LS400, LX450, SC300, SC400, Supra & Tacoma (A-340E/F)20-28
1996 ES300, Pickup & 1995 4Runner29-36
RAV426-33

SHIFT LOCK SOLENOID RESISTANCE SPECIFICATIONS

KEY INTERLOCK SOLENOID

  1. Disconnect electrical connector from key interlock solenoid. Using ohmmeter, measure resistance between key interlock solenoid terminals. See «WIRING DIAGRAMS»(ref-2100-S29250658632000031600000) .
  2. Replace key interlock solenoid if resistance is not 12-17 ohms. Apply battery voltage between of key interlock solenoid terminals. Replace key interlock solenoid if operating sound cannot be heard.

SHIFT LOCK CONTROL SWITCH

Disconnect electrical connector from shift lock control switch. Using ohmmeter, check continuity between specified terminals in relation to shift lever. See WIRING DIAGRAMS . See SHIFT LOCK CONTROL SWITCH CONTINUITY table. Replace switch if continuity is not as specified.

Note. Continuity must be checked in accordance with position of release button on shift lever and shift lever position.

Shift Lever Position & ConditionTerminals
Any Other Gear Except ParkP & P2
Park & Release Button Not PushedP & P1
Park & Release Button Is PushedP & P1 Or P & P2

SHIFT LOCK CONTROL SWITCH CONTINUITY

Previa

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 at ACC, ON or START position.

T100

Ensure parking lock cable is lubricated and does not scrape or knock during component operation. Place shift lever in "P" position and ensure lever is locked when parking lock cable is pushed .28"(7 mm). Ensure shift lever is released when parking lock cable is free. Ensure free play at tip of shift lever is .24" (6 mm).

Adjust pin length by loosening and tightening nut. Pin length should be.012" (.3 mm) above or.028" (.7 mm) below shift lever assembly surface. With pin within length specifications, tighten nut to 18 ft. lbs. (25 N.m). (Scheme 2)

Place shift lever in "P" position. Turn ignition switch to LOCK position. Loosen 2 nuts and ensure slide pin strikes cushion rubber. Tighten 2 nuts to 48 INCH lbs. (5.4 N.m). (Scheme 3)

Turn ignition switch key to ACC position. Set control shaft to "D" position. Measure clearance between stopper and shift lock plate. Clearance should be.039" (1.0 mm) plus or minus.031" (.8 mm). (Scheme 4) When control shaft is set to "D" position, ensure ignition key does not turn to LOCK position.

Scheme 2

Scheme 2: T100

Scheme 3

Scheme 3

Scheme 4

Scheme 4

Shift Interlock System Wiring Diagram (1995-96 ES300). Scheme 5

Scheme 5: Shift Interlock System Wiring Diagram (1995-96 ES300)

Shift Interlock System Wiring Diagram (1995-96 GS300). Scheme 6

Scheme 6: Shift Interlock System Wiring Diagram (1995-96 GS300)

Shift Interlock System Wiring Diagram (1995-96 LS400). Scheme 7

Scheme 7: Shift Interlock System Wiring Diagram (1995-96 LS400)

Shift Interlock System Wiring Diagram (1996 LX450). Scheme 8

Scheme 8: Shift Interlock System Wiring Diagram (1996 LX450)

Shift Interlock System Wiring Diagram (1995-96 SC300 & SC400). Scheme 9

Scheme 9: Shift Interlock System Wiring Diagram (1995-96 SC300 & SC400)

Shift Interlock System Wiring Diagram (1995-96 Avalon). Scheme 10

Scheme 10: Shift Interlock System Wiring Diagram (1995-96 Avalon)

Shift Interlock System Wiring Diagram (1995-96 Camry). Scheme 11

Scheme 11: Shift Interlock System Wiring Diagram (1995-96 Camry)

Shift Interlock System Wiring Diagram (1995-96 Celica). Scheme 12

Scheme 12: Shift Interlock System Wiring Diagram (1995-96 Celica)

Shift Interlock System Wiring Diagram (1995-96 Corolla). Scheme 13

Scheme 13: Shift Interlock System Wiring Diagram (1995-96 Corolla)

Shift Interlock System Wiring Diagram (1995-96 Land Cruiser). Scheme 14

Scheme 14: Shift Interlock System Wiring Diagram (1995-96 Land Cruiser)

Shift Interlock System Wiring Diagram (1995 MR2). Scheme 15

Scheme 15: Shift Interlock System Wiring Diagram (1995 MR2)

Shift Interlock System Wiring Diagram (1995 Paseo). Scheme 16

Scheme 16: Shift Interlock System Wiring Diagram (1995 Paseo)

Shift Interlock System Wiring Diagram (1996 Paseo). Scheme 17

Scheme 17: Shift Interlock System Wiring Diagram (1996 Paseo)

Shift Interlock System Wiring Diagram (1995 Pickup). Scheme 18

Scheme 18: Shift Interlock System Wiring Diagram (1995 Pickup)

Shift Interlock System Wiring Diagram (1996 RAV4). Scheme 19

Scheme 19: Shift Interlock System Wiring Diagram (1996 RAV4)

Shift Interlock System Wiring Diagram (1995-96 Supra). Scheme 20

Scheme 20: Shift Interlock System Wiring Diagram (1995-96 Supra)

Shift Interlock System Wiring Diagram (1995-96 Tacoma). Scheme 21

Scheme 21: Shift Interlock System Wiring Diagram (1995-96 Tacoma)

Shift Interlock System Wiring Diagram (1995-96 Tercel). Scheme 22

Scheme 22: Shift Interlock System Wiring Diagram (1995-96 Tercel)

Shift Interlock System Wiring Diagram (1995 4Runner). Scheme 23

Scheme 23: Shift Interlock System Wiring Diagram (1995 4Runner)

Shift Interlock System Wiring Diagram (1996 4Runner). Scheme 24

Scheme 24: Shift Interlock System Wiring Diagram (1996 4Runner)