GS300, GS400, RX300, SC300 & SC400
Check ECU-IG fuse, electrochromic mirror and wiring harness.
LS400
Check PWR-IG fuse, electrochromic mirror and wiring harness.
LX470
Check GAUGE fuse, electrochromic mirror and wiring harness.
MIRROR DEFOGGER
Note. See REAR WINDOW & SIDE MIRROR DEFOGGERS article.
Note. Check circuits and components in listed order. If circuits or components are okay, return to trouble shooting and identify next circuit to be checked.
POWER MIRROR WITH MEMORY
Note. Prior to trouble shooting, ensure no problems exist in multiplex communications. If problems exist, repair multiplex control system before trouble shooting. See appropriate MULTIPLEX CONTROL SYSTEMS article.
Note. Check circuits and components in listed order. If circuits or components are okay, return to trouble shooting and identify next circuit to be checked.
GS300, GS400 & LS400
Disconnect driver's door ECU harness connector. Check for continuity between specified driver's door ECU harness connector terminals and driving position memory and return switch harness connector terminals. See WIRING DIAGRAMS . See appropriate DRIVING POSITION MEMORY & RETURN SWITCH CIRCUIT CONTINUITY table. If continuity is not as specified, check driving position memory and return switch. See DRIVING POSITION MEMORY & RETURN SWITCH (WITH MEMORY) under COMPONENT TESTS.
| Switch Terminal No. (Wire Color) | Driver Door ECU Terminal No. (Wire Color) | Continuity |
|---|---|---|
| 1 (BRN/WHT) | 16 (BRN/WHT) | Yes |
| 3 (PNK) | 15 (PNK) | Yes |
| 5 (PNK/BLK) | 14 (PNK/BLK) | Yes |
| 7 (GRY) | 4 (GRY) | Yes |
DRIVING POSITION MEMORY & RETURN SWITCH CIRCUIT CONTINUITY (GS300 & GS400)
| Switch Terminal No. (Wire Color) | Driver Door ECU Terminal No. (Wire Color) | Continuity |
|---|---|---|
| 3 (BRN/WHT) | 16 (BRN/WHT) | Yes |
| 4 (GRY) | 4 (GRY) | Yes |
| 6 (PNK/BLK) | 14 (PNK/BLK) | Yes |
| 7 (PNK) | 15 (PNK) | Yes |
DRIVING POSITION MEMORY & RETURN SWITCH CIRCUIT CONTINUITY (LS400)
Disconnect instrument ECU harness connector. Check for continuity between specified instrument ECU harness connector terminals and driving position memory and return switch harness connector terminals. See WIRING DIAGRAMS . See DRIVING POSITION MEMORY & RETURN SWITCH CIRCUIT CONTINUITY (LX470) table. If continuity is not as specified, check driving position memory and return switch. See DRIVING POSITION MEMORY & RETURN SWITCH (WITH MEMORY) under COMPONENT TESTS.
| Switch Terminal No. (Wire Color) | Instrument ECU Terminal No. (Wire Color) | Continuity |
|---|---|---|
| 1 (BLU) | 17 (LT BLU) | Yes |
| 2 (YEL) | 7 (LT BLU) | Yes |
| 3 (WHT/BLK) | (1) | Yes |
| 4 (RED) | 8 (LT BLU) | Yes |
| (1) Check for continuity between switch and body ground. | ||
| (1) | Check for continuity between switch and body ground. |
DRIVING POSITION MEMORY & RETURN SWITCH CIRCUIT CONTINUITY (LX470)
SC300 & SC400
Disconnect tilt and telescopic ECU harness connector. Check for continuity between specified tilt and telescopic ECU harness connector terminals and driving position memory and return switch harness connector terminals. See WIRING DIAGRAMS . See DRIVING POSITION MEMORY & RETURN SWITCH CIRCUIT CONTINUITY (SC300 & SC400) table. If continuity is not as specified, repair wiring harness as necessary. If continuity is as specified, check driving position memory and return switch. See DRIVING POSITION MEMORY & RETURN SWITCH (WITH MEMORY) under COMPONENT TESTS.
| Switch Terminal No. (Wire Color) | Tilt & Telescopic ECU Terminal No. (Wire Color) | Continuity |
|---|---|---|
| 1 (RED) | 12 (GRN) | Yes |
| 2 (PNK) | 3 (PNK) | Yes |
| 3 (BRN/BLK) | 8 (BLU/RED) (1) | Yes |
| 4 (RED/YEL) | 11 (YEL/GRN) | Yes |
| (1) Also, check for continuity between switch and body ground. | ||
| (1) | Also, check for continuity between switch and body ground. |
DRIVING POSITION MEMORY & RETURN SWITCH CIRCUIT CONTINUITY (SC300 & SC400)
POWER MIRROR MOTOR
Note. For power mirror motor circuit testing, see POWER MIRROR MOTOR under COMPONENT TESTS.
ES300
- Disconnect power mirror switch harness connector. Check for continuity between power mirror switch connector terminal No. 8 (White/Black wire) and ground. See «WIRING DIAGRAMS»(ref-4402-S30561072662000062200000) . If continuity exists, go to next step. If continuity does not exist, repair wiring harness as necessary.
- Measure voltage between power mirror switch connector terminal No. 4 (Pink/Blue wire) and ground. With ignition off, voltage should not exist. With ignition on, battery voltage should exist. If voltage is not as specified, repair wiring harness as necessary. If voltage is as specified, check power mirror switch. See «POWER MIRROR SWITCH»(ref-4402-S41729971582000062200000) under COMPONENT TESTS.
GS300 & GS400
For power mirror switch circuit testing, see BODY CONTROL SYSTEMS - GS300 & GS400 article.
For power mirror switch circuit testing, see POWER TILT STEERING COLUMN SYSTEMS - LS400 article.
For power mirror switch circuit testing, see REMOTE CONTROL MIRROR ECU CIRCUIT .
RX300
- Disconnect power mirror switch harness connector. Check for continuity between power mirror switch connector terminal No. 10 (White/Black wire) and ground. See «WIRING DIAGRAMS»(ref-4402-S30561072662000062200000) . If continuity exists, go to next step. If continuity does not exist, repair wiring harness as necessary.
- Measure voltage between power mirror switch connector terminal No. 9 (Pink wire) and ground. With ignition off, voltage should not exist. With ignition on, battery voltage should exist. If voltage is not as specified, repair wiring harness as necessary. If voltage is as specified, check power mirror switch. See «POWER MIRROR SWITCH»(ref-4402-S41729971582000062200000) under COMPONENT TESTS.
SC300 & SC400 (Without Memory)
- Disconnect power mirror switch harness connector. Check for continuity between power mirror switch connector terminal No. 8 (White/Black wire) and ground. See «WIRING DIAGRAMS»(ref-4402-S30561072662000062200000) . If continuity exists, go to next step. If continuity does not exist, repair wiring harness as necessary.
- Measure voltage between power mirror switch connector terminal No. 12 (Gray wire) and ground. With ignition off, voltage should not exist. With ignition on, battery voltage should exist. If voltage is not as specified, repair wiring harness as necessary. If voltage is as specified, check power mirror switch. See «POWER MIRROR SWITCH»(ref-4402-S41729971582000062200000) under COMPONENT TESTS.
SC300 & SC400 (With Memory)
For power mirror switch circuit testing, see REMOTE CONTROL MIRROR ECU CIRCUIT .
LX470, SC300 & SC400 (With Memory)
Disconnect remote control mirror ECU harness connectors. Using an ohmmeter, check for continuity between specified remote control mirror ECU connector terminals (harness side) within specified conditions. See REMOTE CONTROL MIRROR ECU CIRCUIT CONTINUITY (LX470) or REMOTE CONTROL MIRROR ECU CIRCUIT CONTINUITY (SC300 & SC400) table. (Scheme 12)or (Scheme 13). If continuity does not exist, repair wiring harness as necessary. If continuity exists, check remote control mirror ECU. See REMOTE CONTROL MIRROR ECU PIN VOLTAGES under COMPONENT TESTS.
| Condition | Continuity Between Terminals No. | |
|---|---|---|
| All Conditions | 7 & 19; 10 & 11; 10 & 12; 14 & Ground; 22 & 23; 23 & 24 | |
| Left Switch | ||
| Up | 6 & 17 | |
| Down | 6 & 16 | |
| Left | 4 & 17 | |
| Right | 4 & 16 | |
| Right Switch | ||
| Up | 5 & 17 | |
| Down | 5 & 16 | |
| Left | 3 & 17 | |
| Right | 3 & 16 | |
REMOTE CONTROL MIRROR ECU CIRCUIT CONTINUITY (LX470)
| Condition | Continuity Between Terminals | |
|---|---|---|
| All Conditions | A1 & A2; A1 & A3; A8 & A10; A9 & A10; A11 & Ground; A12 & A13; A16 & (1) | |
| Left Switch | ||
| Up | B3 & B6 | |
| Down | B1 & B6 | |
| Left | B3 & B5 | |
| Right | B1 & B5 | |
| Right Switch | ||
| Up | B2 & B3 | |
| Down | B1 & B2 | |
| Left | B3 & B4 | |
| Right | B1 & B4 | |
| (1) Continuity should exist between terminal A16 of remote control mirror ECU and terminal No. 1 of tilt and telescoping ECU connector T9, and between terminal A16 of remote control mirror ECU and terminal No. 18 of tilt and telescoping ECU connector T10. (Scheme 14) | ||
| (1) | Continuity should exist between terminal A16 of remote control mirror ECU and terminal No. 1 of tilt and telescoping ECU connector T9, and between terminal A16 of remote control mirror ECU and terminal No. 18 of tilt and telescoping ECU connector T10. (Scheme 14) |
REMOTE CONTROL MIRROR ECU CIRCUIT CONTINUITY (SC300 & SC400)
Scheme 12
Scheme 13
Scheme 14
GS300, GS400, LS400, LX470, RX300, SC300 & SC400
- Remove rear view mirror. Check for continuity between rear view mirror switch connector terminal No. 4 and ground. See «WIRING DIAGRAMS»(ref-4402-S30561072662000062200000) . If continuity exists, go to next step. If continuity does not exist, repair wiring harness as necessary.
- Measure voltage between rear view mirror switch connector terminal No. 1 and ground. With ignition switch in LOCK or ACC position, voltage should not exist. With ignition switch in ON position, battery voltage should exist. If voltage is not as specified, repair wiring harness as necessary. If voltage is as specified, check rear view mirror electrochromic. See «ELECTROCHROMIC REAR VIEW MIRROR»(ref-4402-S15887693852000062200000) under COMPONENT TESTS.
GS300, GS400, LS400, LX470, SC300 & SC400
Remove driving position memory and return switch. Check for continuity between specified driving position memory and return switch terminals (component side) with switch in specified position. See appropriate DRIVING POSITION MEMORY & RETURN SWITCH CONTINUITY table. (Scheme 15)or (Scheme 16). If continuity is not as specified, replace driving position memory and return switch.
| Terminals No. | Switch Position | Continuity |
|---|---|---|
| 1 & 7 | Set Switch On | Yes |
| 1 & 3 | Return Switch No. 1 On | Yes |
| 1 & 5 | Return Switch No. 2 On | Yes |
DRIVING POSITION MEMORY & RETURN SWITCH CONTINUITY (GS300 & GS400)
| Terminals No. | Switch Position | Continuity |
|---|---|---|
| 3 & 4 | Set Switch On | Yes |
| 3 & 7 | Return Switch No. 1 On | Yes |
| 3 & 6 | Return Switch No. 2 On | Yes |
DRIVING POSITION MEMORY & RETURN SWITCH CONTINUITY (LS400)
| Terminals No. | Switch Position | Continuity |
|---|---|---|
| 3 & 4 | Set Switch On | Yes |
| 3 & 2 | Return Switch No. 1 On | Yes |
| 3 & 1 | Return Switch No. 2 On | Yes |
DRIVING POSITION MEMORY & RETURN SWITCH CONTINUITY (LX470, SC300 & SC400)
Scheme 15
Scheme 16
Disconnect power mirror motor harness connector. Apply battery voltage and ground between specified terminals of power mirror motor harness connector (reverse polarity to move/operate motor in opposite direction). See appropriate POWER MIRROR MOTOR TEST table. (Scheme 17)- (Scheme 24). If motor does not operate as specified, replace power mirror motor.
Scheme 17
Scheme 18
Scheme 19
Scheme 20
Scheme 21
Scheme 22
Scheme 23
Scheme 24
- Disconnect power mirror motor harness connector. Connect three 1.5-volt dry cell batteries together in series. (Scheme 25) Connect dry cell battery positive lead to terminal No. 8 and negative lead to terminal No. 11. Connect positive lead of voltmeter to terminal No. 9 and negative lead to terminal No. 11.
- While watching voltmeter, apply battery voltage and ground to terminals No. 2 and 6, reversing polarity as necessary to move mirror in both directions. As mirror moves, voltage should gradually and smoothly change from 0-1.8 volts to 2.8-5.0 volts. If voltage is not as specified, replace power mirror motor assembly. If voltage is as specified, go to next step.
- Disconnect 4 leads of voltmeter and battery voltage from power mirror motor connector terminals (leave dry cell assembly connected). Connect positive lead of voltmeter to terminal No. 10 and negative lead to terminal No. 11.
- Apply battery voltage and ground between terminals No. 1 and 2, reversing polarity as necessary to move mirror in both directions. As mirror moves, voltage should gradually and smoothly change from 0-1.8 volts to 2.8-5.0 volts. If voltage is not as specified, replace power mirror motor assembly.
Scheme 25
- Disconnect power mirror motor harness connector. Connect three 1.5-volt dry cell batteries together in series. (Scheme 26) Connect dry cell battery positive lead to terminal No. 7 and negative lead to terminal No. 6. Connect positive lead of voltmeter to terminal No. 13 and negative lead to terminal No. 6.
- While watching voltmeter, apply battery voltage and ground to terminals No. 10 and 11, reversing polarity as necessary to move mirror in both directions. As mirror moves, voltage should gradually and smoothly change from 0-.9 volt to 2.8-5.0 volts. If voltage is not as specified, replace power mirror motor assembly. If voltage is as specified, go to next step.
- Disconnect 4 leads of voltmeter and battery voltage from power mirror motor connector terminals (leave dry cell assembly connected). Connect positive lead of voltmeter to terminal No. 14 and negative lead to terminal No. 6.
- Apply battery voltage and ground between terminals No. 11 and 12, reversing polarity as necessary to move mirror in both directions. As mirror moves, voltage should gradually and smoothly change from 0-.9 volt to 2.8-5.0 volts. If voltage is not as specified, replace power mirror motor assembly.
Scheme 26
- Disconnect power mirror motor harness connector. Connect three 1.5-volt dry cell batteries together in series. (Scheme 27) Connect dry cell battery positive lead to terminal No. 9 and negative lead to terminal No. 15. Connect positive lead of voltmeter to terminal No. 16 and negative lead to terminal No. 15.
- While watching voltmeter, apply battery voltage and ground between terminals No. 7 and 6, reversing polarity as necessary to move mirror in both directions. As mirror moves, voltage should gradually and smoothly change from 0-1.8 volt to 2.8-5.0 volts. If voltage is not as specified, replace power mirror motor assembly. If voltage is as specified, go to next step.
- Disconnect 4 leads of voltmeter and battery voltage from power mirror motor connector terminals (leave dry cell assembly connected). Connect positive lead of voltmeter to terminal No. 10 and negative lead to terminal No. 15.
- Apply battery voltage and ground between terminals No. 6 and 7, reversing polarity as necessary to move motor in both directions. As mirror moves, voltage should gradually and smoothly change from 0-1.8 volt to 2.8-5.0 volts. If voltage is not as specified, replace power mirror motor assembly.
Scheme 27
- Disconnect power mirror motor harness connector. Connect three 1.5-volt dry cell batteries together in series. (Scheme 28) Connect dry cell battery positive lead to terminal No. 11 and negative lead to terminal No. 8. Connect positive lead of voltmeter to terminal No. 10 and negative lead to terminal No. 8.
- While watching voltmeter, apply battery voltage and ground between terminals No. 3 and 13, reversing polarity as necessary to move mirror in both directions. As mirror moves, voltage should gradually and smoothly change from 0-.9 volt to 2.8-5.0 volts. If voltage is not as specified, replace power mirror motor assembly. If voltage is as specified, go to next step.
- Disconnect 4 leads of voltmeter and battery voltage from power mirror motor connector terminals (leave dry cell assembly connected). Connect positive lead of voltmeter to terminal No. 9 and negative lead to terminal No. 8.
- Apply battery voltage and ground between terminals No. 12 and 13, reversing polarity as necessary to move motor in both directions. As mirror moves, voltage should gradually and smoothly change from 0-.9 volt to 2.8-5.0 volts. If voltage is not as specified, replace power mirror motor assembly.
Scheme 28
POWER MIRROR SWITCH
Remove power mirror switch. Check resistance or continuity between specified power mirror switch terminals (component side) with switch in specified position. See appropriate POWER MIRROR SWITCH RESISTANCE or POWER MIRROR SWITCH CONTINUITY table. (Scheme 29)- (Scheme 32). If resistance or continuity is not as specified, replace power mirror switch.
Scheme 29
Scheme 30
Scheme 31
Scheme 32
POWER MIRROR SWITCH CONTINUITY (ES300)
| Switch Position | Terminals | |
|---|---|---|
| Left Switch | ||
| Off (Neutral) | (1) | |
| Up | 3 & 4; 7 & 8 | |
| Down | 3 & 8; 4 & 7 | |
| Left | 4 & 9; 7 & 8 | |
| Right | 4 & 7; 8 & 9 | |
| Right Switch | ||
| Off (Neutral) | (1) | |
| Up | 1, 7 & 8; 2 & 4 | |
| Down | 1, 2 & 8; 4 & 7 | |
| Left | 1, 7 & 8; 4 & 10 | |
| Right | 1, 8 & 10; 4 & 7 | |
| (1) Continuity should not exist between any terminals. | ||
| (1) | Continuity should not exist between any terminals. |
POWER MIRROR SWITCH CONTINUITY (ES300)
POWER MIRROR SWITCH RESISTANCE (GS300, GS400 & LS400)
| Switch Position | Terminals No. | Resistance (Ohms) | |
|---|---|---|---|
| Left & Right Select Switch | |||
| Left | 8 & 9 | 100 | |
| Right | 8 & 9 | 0 | |
| Left & Right Switch | |||
| Up | 7 & 9 | About 100 | |
| Right | 7 & 9 | 250 | |
| Down | 7 & 9 | 470 | |
| Left | 7 & 9 | 800 | |
POWER MIRROR SWITCH RESISTANCE (GS300, GS400 & LS400)
POWER MIRROR SWITCH CONTINUITY (LX470)
| Switch Position | Terminals | |
|---|---|---|
| Left Switch | ||
| Off (Neutral) | (1) | |
| Up | 1, 7 & 8; 3 & 4 | |
| Down | 1, 3 & 8; 4 & 7 | |
| Left | 1, 7 & 8; 4 & 9 | |
| Right | 1, 8 & 9; 4 & 7 | |
| Right Switch | ||
| Off (Neutral) | (1) | |
| Up | 2 & 4; 7 & 8 | |
| Down | 2 & 8; 4 & 7 | |
| Left | 4 & 10; 7 & 8 | |
| Right | 4 & 7; 8 & 10 | |
| Retract Switch | ||
| Return | 2 & 6; 3 & 5 | |
| Retract | 2 & 3; 5 & 6 | |
| (1) Continuity should not exist between any terminals. | ||
| (1) | Continuity should not exist between any terminals. |
POWER MIRROR SWITCH CONTINUITY (LX470)
POWER MIRROR SWITCH CONTINUITY (RX300)
| Switch Position | Terminals | |
|---|---|---|
| Left Switch | ||
| Off (Neutral) | (1) | |
| Up | 1 & 9; 6 & 10 | |
| Down | 1 & 10; 6 & 9 | |
| Left | 5 & 9; 6 & 10 | |
| Right | 5 & 10; 6 & 9 | |
| Right Switch | ||
| Off (Neutral) | (1) | |
| Up | 6 & 10; 7 & 9 | |
| Down | 6 & 9; 7 & 10 | |
| Left | 6 & 10; 8 & 9 | |
| Right | 6 & 9; 8 & 10 | |
| (1) Continuity should not exist between any terminals. | ||
| (1) | Continuity should not exist between any terminals. |
POWER MIRROR SWITCH CONTINUITY (RX300)
POWER MIRROR SWITCH CONTINUITY (SC300 & SC400)
| Switch Position | Terminals No. | |
|---|---|---|
| Left/Right Select Switch | ||
| Off (Neutral) | (1) | |
| Left & Right | 2 & 9; 3 & 10 | |
| Left Switch | ||
| Off (Neutral) | (1) | |
| Up | 3 & 12; 8 & 11 | |
| Down | 3 & 8; 11 & 12 | |
| Left | 2 & 12; 8 & 11 | |
| Right | 2 & 8; 11 & 12 | |
| Right Switch | ||
| Off (Neutral) | (1) | |
| Up | 8 & 11; 10 & 12 | |
| Down | 8 & 10; 11 & 12 | |
| Left | 8 & 11; 9 & 12 | |
| Right | 8 & 9; 11 & 12 | |
| (1) Continuity should not exist between any terminals. | ||
| (1) | Continuity should not exist between any terminals. |
POWER MIRROR SWITCH CONTINUITY (SC300 & SC400)
Turn ignition on. Using a voltmeter, measure voltage by backprobing between the following remote control mirror ECU connector terminals and ground within specified conditions. See REMOTE CONTROL MIRROR ECU PIN VOLTAGES (LX470) or REMOTE CONTROL MIRROR ECU PIN VOLTAGES (SC300 & SC400) table. (Scheme 12)or (Scheme 13). If voltages are not as specified, repair wiring harness or replace components as necessary. If voltages are as specified, replace remote control mirror ECU.
| Terminal No. | Condition | Voltage |
|---|---|---|
| 1 | All Conditions | Battery |
| 2 | Ignition Off | Zero |
| 2 | Ignition On | Battery |
| 3 | All Conditions | About 5.0 |
| 4 | All Conditions | About 5.0 |
| 5 | All Conditions | About 5.0 |
| 6 | All Conditions | About 5.0 |
| 7 | Either Mirror, Except Off | About 5.0 |
| 8 | Left Mirror, Down | (1) 2.8-5.0 |
| 8 | Left Mirror, Up | (1) 0.0-0.9 |
| 9 | Left Mirror, Left | (1) 2.8-5.0 |
| 9 | Left Mirror, Right | (1) 0.0-0.9 |
| 10 | Left Mirror, Left Or Down | Battery |
| 11 | Left Mirror, Right | Battery |
| 12 | Left Mirror, Up | Battery |
| 20 | Right Mirror, Down | (1) 2.8-5.0 |
| 20 | Right Mirror, Up | (1) 0.0-0.9 |
| 21 | Right Mirror, Left | (1) 0.0-0.9 |
| 21 | Right Mirror, Right | (1) 2.8-5.0 |
| 22 | Right Mirror, Right Or Down | Battery |
| 23 | Right Mirror, Left | Battery |
| 24 | Right Mirror, Up | Battery |
| (1) As mirror moves, voltage should gradually change. | ||
| (1) | As mirror moves, voltage should gradually change. |
REMOTE CONTROL MIRROR ECU PIN VOLTAGES (LX470)
| Terminal | Condition | Voltage |
|---|---|---|
| A1 | Right Mirror, Left | Battery |
| A2 | Right Mirror, Up | Battery |
| A3 | Right Mirror, Right Or Down | Battery |
| A4 | All Conditions | Battery |
| A5 | Right Mirror, Left | (1) 0.0-0.9 |
| A5 | Right Mirror, Right | (1) 2.8-5.0 |
| A6 | Right Mirror, Down | (1) 2.8-5.0 |
| A6 | Right Mirror, Up | (1) 0.0-0.9 |
| A7 | Ignition Off | Zero |
| A7 | Ignition On | Battery |
| A8 | Left Mirror, Right | Battery |
| A9 | Left Mirror, Up | Battery |
| A10 | Left Mirror, Left Or Down | Battery |
| A13 | Either Mirror, Except Off | About 5.0 |
| A14 | Left Mirror, Left | (1) 2.8-5.0 |
| A14 | Left Mirror, Right | (1) 0.0-0.9 |
| A15 | Left Mirror, Down | (1) 2.8-5.0 |
| A15 | Left Mirror, Up | (1) 0.0-0.9 |
| B2 | All Conditions | About 5.0 |
| B4 | All Conditions | About 5.0 |
| B5 | All Conditions | About 5.0 |
| B6 | All Conditions | About 5.0 |
| (1) As mirror moves, voltage should gradually change. | ||
| (1) | As mirror moves, voltage should gradually change. |
REMOTE CONTROL MIRROR ECU PIN VOLTAGES (SC300 & SC400)
GS300 & GS400 (With Memory)
Disconnect outer mirror connector. Using jumper wires, connect 1.5 volt dry cell battery positive lead to terminal No. 5 and battery negative lead to terminal No. 4 at mirror connector. (Scheme 18) Mirror face should change from bright to dark. Replace mirror assembly as necessary.
GS300 & GS400 (Without Memory) & RX300
Disconnect outer mirror connector. Using jumper wires, connect 1.5 volt dry cell battery positive lead to terminal No. 2 and battery negative lead to terminal No. 1 at mirror connector. (Scheme 19) Mirror face should change from bright to dark. Replace mirror assembly as necessary.
LS400 (With Memory)
Disconnect outer mirror connector. Using jumper wires, connect 1.5 volt dry cell battery positive lead to terminal No. 4 and battery negative lead to terminal No. 3 at mirror connector. (Scheme 20) Mirror face should change from bright to dark. Replace mirror assembly as necessary.
LS400 (Without Memory)
Disconnect outer mirror connector. Using jumper wires, connect 1.5 volt dry cell battery positive lead to terminal No. 2 and battery negative lead to terminal No. 1 at mirror connector. (Scheme 21) Mirror face should change from bright to dark. Replace mirror assembly as necessary.
Disconnect outer mirror connector. Using jumper wires, connect 1.5 volt dry cell battery positive lead to terminal No. 2 and battery negative lead to terminal No. 3 at mirror connector. (Scheme 22) Mirror face should change from bright to dark. Replace mirror assembly as necessary.
Disconnect outer mirror connector. Using jumper wires, connect 1.5 volt dry cell battery positive lead to terminal No. 1 and battery negative lead to terminal No. 2 at mirror connector. (Scheme 23) Mirror face should change from bright to dark. Replace mirror assembly as necessary.
Remove rear view mirror. Using jumper wires, apply positive battery lead to terminal No. 1 and negative battery lead to terminal No. 4 at rear view mirror harness connector. (Scheme 33) Connect positive lead of voltmeter to terminal No. 2 and negative lead to terminal No. 3. Press mirror switch. Observe voltmeter and shine an electric light on face of mirror. Battery voltage should be present and face should change from bright to dark. Replace rear view mirror as necessary.
Scheme 33
POWER MIRROR GLASS
| WARNING | To prevent fire, ensure mirror defogger switch is turned off and element has cooled before sliding shop towel behind mirror. |