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Wiper System & Washer System: Other Lexus LX J100

Wiper/washer Systems 8 illustrations ~2953 words

Except Celica & RAV4

  1. Disconnect combination switch connector. Turn wiper/washer switch to INT position. Rotate intermittent time control to FAST position. Connect fused jumper between battery voltage and terminal No. 16. Connect jumper wire between ground and terminal No. 2. see scheme 7 Connect DVOM positive lead to terminal No. 7 and negative lead to terminal No. 2. For Avalon, go to next step. For Camry, Camry Solara, Sienna, Tacoma, Tundra and 4Runner, go to step 3. For Corolla, Land Cruiser, LX 470and MR2, go to step 4.
  2. DVOM should indicate battery voltage. With DVOM connected, momentarily connect terminals No. 16 and 17 with a fused jumper. With jumper still connected to terminal No. 16, move jumper from terminal No. 17 to terminal No. 2. DVOM reading should change from zero volts to battery voltage in about 3 seconds. If operation is not as specified, replace wiper/washer switch. See «FRONT WIPER SWITCH»(ref-9075-S14482179462000100400000) under REMOVAL & INSTALLATION.
  3. DVOM should indicate battery voltage. Monitor DVOM reading while rotating intermittent time control from SLOW to FAST positions. In SLOW position, voltage will change from zero to battery voltage in 10-15 seconds. In FAST position, voltage will change from zero to battery voltage in 1-3 seconds. If operation is not as specified, replace wiper/washer switch. See «FRONT WIPER SWITCH»(ref-9075-S14482179462000100400000) under REMOVAL & INSTALLATION.
  4. DVOM should indicate battery voltage. With DVOM connected, momentarily connect terminals No. 16 and 17 with a fused jumper. With jumper still connected to terminal No. 16, move jumper from terminal No. 17 to terminal No. 2. see scheme 7 Monitor DVOM reading while rotating intermittent time control from SLOW to FAST positions. In SLOW position, voltage will change from zero to battery voltage within 10-15 seconds (6-16 seconds on Land Cruiser and LX 470). In FAST position, voltage will change from zero to battery voltage in 1-3 seconds. If operation is not as specified, replace wiper/washer switch. See «FRONT WIPER SWITCH»(ref-9075-S14482179462000100400000) under REMOVAL & INSTALLATION.

Celica & RAV4

  1. Disconnect combination switch connector. Turn wiper/washer switch to INT position. Rotate intermittent time control to FAST position. Connect fused jumper between battery voltage and terminal No. 17. Connect jumper wire between ground and terminal No. 16. see scheme 7 Connect DVOM positive lead to terminal No. 7 and negative lead to terminal No. 16. DVOM should indicate battery voltage.
  2. With DVOM connected, momentarily connect terminals No. 16 and 2 with a fused jumper. With jumper connected to terminal No. 2, move jumper from terminal No. 16 to terminal No. 17. Monitor DVOM reading while rotating intermittent time control from SLOW to FAST positions. In SLOW position, voltage will change from zero to battery voltage in 10-15 seconds. In FAST position, voltage will change from zero to battery voltage in 1-3 seconds. If operation is not as specified, replace wiper/washer switch. See «FRONT WIPER SWITCH»(ref-9075-S14482179462000100400000) under REMOVAL & INSTALLATION.

ECHO

  1. Disconnect combination switch connector. Turn wiper/washer switch to INT position. Rotate intermittent time control to FAST position. Connect fused jumper between battery voltage and terminal No. 8. Connect jumper wire between ground and terminal No. 5. see scheme 8 Connect DVOM positive lead to terminal No. 7 and negative lead to terminal No. 5. DVOM should indicate battery voltage.
  2. With DVOM connected, momentarily connect terminals No. 6 and 8 with a fused jumper wire. With jumper still connected to terminal No. 8, move jumper from terminal No. 6 to terminal No. 5. With wiper switch in FAST position, DVOM reading should change from zero volts to battery voltage in about 3 seconds. With wiper switch in SLOW position, DVOM reading should change from zero volts to battery voltage in 10-15 seconds. If operation is not as specified, replace wiper/washer switch. See «FRONT WIPER SWITCH»(ref-9075-S14482179462000100400000) under REMOVAL & INSTALLATION.
  3. DVOM should indicate battery voltage. Monitor DVOM reading while rotating intermittent time control from SLOW to FAST positions. In SLOW position, voltage will change from zero to battery voltage in 10-15 seconds. In FAST position, voltage will change from zero to battery voltage in 1-3 seconds. If operation is not as specified, replace wiper/washer switch. See «FRONT WIPER SWITCH»(ref-9075-S14482179462000100400000) under REMOVAL & INSTALLATION.
  4. DVOM should indicate battery voltage. With DVOM connected, momentarily connect terminals No. 16 and 17 with a fused jumper. With jumper still connected to terminal No. 16, move jumper from terminal No. 17 to terminal No. 2. see scheme 8 Monitor DVOM reading while rotating intermittent time control from SLOW to FAST positions. In SLOW position, voltage will change from zero to battery voltage within 10-15 seconds (6-16 seconds on Land Cruiser and LX 470). In FAST position, voltage will change from zero to battery voltage in 1-3 seconds. If operation is not as specified, replace wiper/washer switch. See «FRONT WIPER SWITCH»(ref-9075-S14482179462000100400000) under REMOVAL & INSTALLATION.

Avalon, Camry, Camry Solara, Corolla, Sienna, MR2, Tacoma, Tundra & 4Runner

  1. Disconnect combination switch connector. Connect fused jumper between battery voltage and terminal No. 16 (switch-side). Connect jumper wire between ground and terminal No. 2. see scheme 7 Connect DVOM positive lead to terminal No. 7 and negative lead to terminal No. 2.
  2. Depress washer switch and monitor DVOM voltage readings. On Camry, Camry Solara, MR2, Sienna, Tacoma and Tundra, readings should change from zero volts to battery voltage within one second of depressing washer switch. After switch is released, readings should change from battery voltage to zero volts in about 25 seconds (3 seconds on Tacoma, Tundra and 4Runner). If readings are not as specified, replace wiper/washer switch. See «FRONT WIPER SWITCH»(ref-9075-S14482179462000100400000) under REMOVAL & INSTALLATION.
  1. Disconnect combination switch connector. Connect fused jumper between battery voltage and terminal No. 8 (switch-side). Connect jumper wire between ground and terminal No. 5. see scheme 8 Connect DVOM positive lead to terminal No. 7 and negative lead to terminal No. 5.
  2. Depress washer switch and monitor DVOM voltage readings should go from zero volts to battery voltage within one second of depressing washer switch. After switch is released, readings should change from battery voltage to zero volts in about 3 seconds. If readings are not as specified, replace wiper/washer switch. See «FRONT WIPER SWITCH»(ref-9075-S14482179462000100400000) under REMOVAL & INSTALLATION.

RAV4 (Rear Wiper Switch In INT Position)

Disconnect 22-pin connector "A" from junction block. Connect positive lead of DVOM to junction block terminal C9 and negative lead to ground. Connect jumper wire between 22-pin connector (connector "A") cavity terminal A21 and ground. (Scheme 30) If continuity is not indicated, replace junction block.

RAV4 (Rear Wiper Switch In LO Position)

Disconnect 22-pin connector "A" from junction block. Connect positive lead of DVOM to junction block terminal C10 and negative lead to ground. Connect jumper wire between 22-pin connector "A" cavity terminal A22 and ground. (Scheme 30) If continuity is not indicated, replace junction block.

ConnectionsSwitch PositionSpecification
A21-GroundINTContinuity
A22-GroundONContinuity
B10-GroundAll PositionsBattery Voltage

JUNCTION BLOCK CONNECTOR CIRCUIT TEST

Scheme 30

Scheme 30
Scheme 30

Avalon & MR2

  1. Using a 12-volt battery, connect jumper wire from positive battery terminal to wiper motor terminal No. 5. (Scheme 32) Connect another jumper wire between negative battery terminal and wiper motor terminal No. 4. Motor should operate at low speed.
  2. Remove jumper wire from terminal No. 5. Reconnect positive battery terminal jumper wire to wiper motor terminal No. 3. Motor should operate at high speed.
  3. Remove jumper wire from terminal No. 3 and connect a jumper wire between terminals No. 1 and No. 5. Connect terminal No. 2 to positive battery lead and terminal No. 4 to battery negative lead. The motor should operate and stop at park position and then operate again. If operation is not as specified, replace wiper motor. See «FRONT WIPER MOTOR»(ref-9075-S37079429642000100400000) under REMOVAL & INSTALLATION.

Celica, Corolla & RAV4

  1. Using a 12-volt battery, connect jumper wire from positive battery terminal to wiper motor terminal No. 3. (Scheme 31) Connect another jumper wire between negative battery terminal and wiper motor terminal No. 1. Motor should operate at low speed.
  2. Remove jumper wire from terminal No. 3. Reconnect positive battery terminal jumper wire to wiper motor terminal No. 2. Motor should operate at high speed.
  3. Remove jumper wire from terminal No. 2 and reconnect jumper wire to wiper motor terminal No. 3. With motor running at low speed, stop motor at any position except PARK position by disconnecting jumper wire from terminal No. 3. Install another jumper wire between wiper motor terminals No. 3 and 5.
  4. Connect positive battery terminal jumper wire to wiper motor terminal No. 6. Connect negative jumper to terminal No. 1. Motor should start running and then stop at PARK position. Replace motor if operation is not as specified. See «FRONT WIPER MOTOR»(ref-9075-S37079429642000100400000) under REMOVAL & INSTALLATION.

Camry, Camry Solara, Tacoma & Tundra

  1. Using a 12-volt battery, connect jumper wire from positive battery terminal to wiper motor terminal No. 5. (Scheme 32) Connect another jumper wire from negative battery terminal to wiper motor terminal No. 4. Motor should operate at low speed.
  2. Remove jumper wire from terminal No. 5. Reconnect jumper wire to wiper motor terminal No. 3. Motor should operate at high speed. Remove jumper wire from terminal No. 3 and reconnect jumper wire to wiper motor terminal No. 5. With motor running at low speed, stop motor at any position except PARK position by disconnecting jumper wire from terminal No. 5. On Camry and Camry Solara, install jumper wire between wiper motor terminals No. 3 and 5. On Tacoma and Tundra, install jumper wire between wiper motor terminals No. 1 and 5.
  3. On all models, connect positive battery terminal jumper wire to wiper motor terminal No. 2. Connect negative battery terminal jumper wire to wiper motor terminal No. 4. Motor should start running and then stop at PARK position. Replace motor if operation is not as specified. See «FRONT WIPER MOTOR»(ref-9075-S37079429642000100400000) under REMOVAL & INSTALLATION.
  1. Using a 12-volt battery, connect jumper wire from positive battery terminal to wiper motor terminal No. 5. (Scheme 32) Connect another jumper wire between negative battery terminal and wiper motor terminal No. 4. Motor should operate at low speed.
  2. Remove jumper wire from terminal No. 5. Reconnect positive battery terminal jumper wire to wiper motor terminal No. 3. Motor should operate at high speed.
  3. Remove jumper wire from terminal No. 3 and reconnect jumper wire to wiper motor terminal No. 5. With motor running at low speed, stop motor at any position except PARK position by disconnecting jumper wire from terminal No. 5. Install another jumper wire between wiper motor terminals No. 1 and 5.
  4. Connect positive battery terminal jumper wire to wiper motor terminal No. 2. Connect negative jumper to terminal No. 4. Motor should start running and then stop at PARK position. Replace motor if operation is not as specified. See «FRONT WIPER MOTOR»(ref-9075-S37079429642000100400000) under REMOVAL & INSTALLATION.

Land Cruiser & LX 470

  1. Using a 12-volt battery, connect jumper wire from positive battery terminal to wiper motor terminal No. 1. (Scheme 32) Connect another jumper wire between negative battery terminal and wiper motor terminal No. 5. Wiper motor should operate at low speed.
  2. Remove jumper wire from terminal No. 1. Reconnect jumper wire to wiper motor terminal No. 4. Motor should operate at high speed. Remove jumper wire from terminal No. 4 and reconnect jumper wire to wiper motor terminal No. 1. With motor running at low speed, stop motor at any position except PARK position by disconnecting jumper wire from terminal No. 1. Install another jumper wire between wiper motor terminals No. 1 and 3.
  3. Ensure ground is still connected to terminal No. 5. Connect positive battery terminal jumper wire to wiper motor terminal No. 2. Motor should start running and then stop at PARK position. Replace motor if operation is not as specified. See «FRONT WIPER MOTOR»(ref-9075-S37079429642000100400000) under REMOVAL & INSTALLATION.

Sienna

  1. Using a 12-volt battery, connect jumper wire from positive battery terminal to wiper motor terminal No. 5. (Scheme 33) Connect another jumper wire between negative battery terminal and wiper motor terminal No. 1. Wiper motor should operate at low speed.
  2. Remove jumper wire from terminal No. 5. Reconnect jumper wire to wiper motor terminal No. 4. Motor should operate at high speed. Remove jumper wire from terminal No. 4 and reconnect jumper wire to wiper motor terminal No. 5. With motor running at low speed, stop motor at any position except PARK position by disconnecting jumper wire from terminal No. 5. Install another jumper wire between wiper motor terminals No. 2 and 5.
  3. Ensure ground is still connected to terminal No. 1. Connect positive battery terminal jumper wire to wiper motor terminal No. 3. Motor should start running and then stop at PARK position. Replace motor if operation is not as specified. See «FRONT WIPER MOTOR»(ref-9075-S37079429642000100400000) under REMOVAL & INSTALLATION.

4Runner

  1. Using a 12-volt battery, connect jumper wire from positive battery terminal to wiper motor terminal No. 3. (Scheme 31)or (Scheme 34). Connect another jumper wire between negative battery terminal and wiper motor body. Motor should operate at low speed.
  2. Remove jumper wire from terminal No. 3. Reconnect positive battery terminal jumper wire to wiper motor terminal No. 2. Motor should operate at high speed.
  3. Remove jumper wire from terminal No. 2 and reconnect jumper wire to wiper motor terminal No. 3. With motor running at low speed, stop motor at any position except PARK position by disconnecting jumper wire from terminal No. 3. Install another jumper wire between wiper motor terminals No. 2 and 3.
  4. Ensure wiper motor body is still connected to battery negative terminal. Connect positive battery terminal jumper wire to wiper motor terminal No. 4. Motor should start running and then stop at PARK position. Replace motor if operation is not as specified. See «FRONT WIPER MOTOR»(ref-9075-S37079429642000100400000) under REMOVAL & INSTALLATION.

Scheme 31

Scheme 31
Scheme 31

Scheme 32

Scheme 32
Scheme 32

Scheme 33

Scheme 33
Scheme 33

Scheme 34

Scheme 34
Scheme 34

Except Celica & 4Runner

Disconnect washer motor. Connect fused jumper between battery voltage and terminal No. 2. Connect jumper wire between ground and terminal No. 1. See WIRING DIAGRAMS . Motor should operate. If motor does not operate as specified, replace washer motor.

Celica

Disconnect washer motor. Connect fused jumper between battery voltage and terminal No. 2. Connect jumper wire between ground and terminal No. 1 (terminal No. 3 on rear washer motor). See WIRING DIAGRAMS . Motor should operate. If motor does not operate as specified, replace washer motor.

Disconnect washer motor. Connect fused jumper between battery voltage and terminal No. 2 (terminal No. 3 on rear washer motor). Connect jumper wire between ground and terminal No. 1 (terminal No. 4 on rear washer motor). See WIRING DIAGRAMS . Motor should operate. If motor does not operate as specified, replace washer motor.

  1. Disconnect wiring connector from wiper motor. Using a 12-volt battery, connect jumper wire from positive battery terminal to wiper motor terminal No. 1. (Scheme 35) Using another jumper wire, connect wiper motor terminal No. 3 and motor body to negative battery terminal. Motor should operate.
  2. To check automatic PARK operation, with motor running, motor should stop by disconnecting jumper wire from terminal No. 3. Replace motor and relay as a complete assembly if operation is not as specified. See «REAR WIPER MOTOR»(ref-9075-S01489912962000100400000) under REMOVAL & INSTALLATION.
  1. Disconnect wiring connector from wiper motor. Using a 12-volt battery, connect jumper wire from positive battery terminal to wiper motor terminal No. 3. (Scheme 36) Using another jumper wire, connect wiper motor terminal No. 2 to negative battery terminal. Motor should operate.
  2. To check automatic PARK operation with motor running, stop motor operation anywhere except PARK position by removing power from terminal No. 3. Install another jumper wire between terminals No. 3 and 4. Connect jumper wire from positive battery terminal to wiper motor terminal No. 1. Ensure motor operates and stops at PARK position. Replace motor if operation is not as specified. See «REAR WIPER MOTOR»(ref-9075-S01489912962000100400000) under REMOVAL & INSTALLATION.

RAV4

  1. Disconnect wiring connector from wiper motor. Using a 12-volt battery, connect jumper wire from positive battery terminal to wiper motor terminal No. 4. (Scheme 36) Using another jumper wire, connect wiper motor body (ground) to negative battery terminal. Motor should operate.
  2. To check automatic PARK operation with motor running, stop motor operation anywhere except PARK position by removing power from terminal No. 4. Install another jumper wire between terminals No. 2 and 4. Connect jumper wire from positive battery terminal to wiper motor terminal No. 1. Ensure motor operates and stops at PARK position. Replace motor if operation is not as specified. See «REAR WIPER MOTOR»(ref-9075-S01489912962000100400000) under REMOVAL & INSTALLATION.

Disconnect wiring connector from wiper motor. Using a 12-volt battery, connect fused jumper from negative battery terminal to wiper motor terminal No. 1. (Scheme 37) Using another jumper wire, connect wiper motor terminal No. 3 to positive battery terminal. Motor should operate in clockwise direction. Reverse jumper wires. Motor should operate in counterclockwise direction. Replace motor if operation is not as specified. See REAR WIPER MOTOR under REMOVAL & INSTALLATION.

Scheme 35

Scheme 35: 4Runner
Scheme 35: 4Runner

Scheme 36

Scheme 36
Scheme 36

Scheme 37

Scheme 37
Scheme 37

Land Cruiser & LX 470 (Continuity Check)

Remove rear wiper relay. Use DVOM and ensure continuity does exist between terminals No. 1 and 5, and 3 and 4. Connect fused jumper to terminal No. 3 and connect jumper wire between ground and terminal No. 4. Check that continuity does exist between terminals No. 2 and 5. see scheme 13 If continuity is not as specified, replace rear wiper relay.

RAV4 & Sienna (Continuity Check)

Remove rear wiper relay. Use DVOM and ensure continuity does not exist between terminals No. 3 and 4. see scheme 13 Check that continuity does exist between terminals No. 4 and 5. If continuity is not as specified, replace rear wiper relay.

FRONT WIPER SWITCH

Note. Wiper switch is component of combination switch, mounted to steering column. For further information on combination switch removal procedure, see appropriate STEERING COLUMN SWITCHES article.

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