Power Mirror Control System: Inspection

W/O Memory:

INSPECT LEFT SIDE MIRROR SWITCH CONTINUITY

CONTINUITY CONDITION

Switch position	Tester connection	Specified condition
OFF	-	No continuity
UP	3 - 4, 7 - 8	Continuity
DOWN	3 - 8, 4 - 7	Continuity
LEFT	4 - 9, 7 - 8	Continuity
RIGHT	4 - 7, 8 - 9	Continuity

Fig 1: Identifying Adjustment Switch

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

INSPECT RIGHT SIDE MIRROR SWITCH CONTINUITY

CONTINUITY CONDITION

Switch position	Tester connection	Specified condition
OFF	-	No continuity
UP	2 - 4, 7 - 8	Continuity
DOWN	2 - 8, 4 - 7	Continuity
LEFT	4 - 10, 7 - 8	Continuity
RIGHT	4 - 7, 8 - 10	Continuity

If continuity is not as specified, replace the switch. If continuity is as specified, inspect the switch circuit.

W/Memory:

INSPECT LEFT SIDE MIRROR SWITCH CONTINUITY

CONTINUITY CONDITION

Switch position	Tester connection	Resistance (Ω)
LEFT	8 - 9	100
RIGHT	8 - 9	0
Illumination	5 - 6	Continuity

If continuity is as specified, replace the switch.

w/Memory:

INSPECT MIRROR SWITCH RESISTANCE

HINT:

Set the Left/Right adjustment switch to either position on the left or right.
Measure resistance between terminals 7 and 9 at each switch position, as shown in CONTINUITY CONDITION .

CONTINUITY CONDITION

Switch Position	Resistance (Ω)
UP	Approx. 100
RIGHT	250
DOWN	470
LEFT	800

If resistance is as specified, replace the switch.

INSPECT MIRROR SWITCH CIRCUIT

Disconnect the connector from the switch and inspect the connector on the wire harness side.

Fig 2: Identifying Connector Terminal

TESTER CONNECTION AND CONDITION

Tester connection	Condition	Specified condition
8 - Ground	Constant	Continuity
4 - Ground	Ignition switch position LOCK	No voltage
4 - Ground	Ignition switch position ACC or ON	Battery voltage

If the circuit is not as specified, inspect the circuits connected to other parts.

INSPECT MIRROR SWITCH INDICATOR LIGHT OPERATION
Connect the positive (+) lead from the battery to terminal 5 and the negative (-) lead to terminal 6, and check that the indicator light does not light up, replace the switch.

Fig 3: Inspecting Mirror Switch Indicator Light Operation
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w/o Mirror defogger and driving position memory:
INSPECT MIRROR MOTOR OPERATION
1. Connect the positive (+) lead from the battery to terminal 1 and the negative (-) lead to terminal 2, and check that the mirror turns to the left side.
  
  Fig 4: Inspecting Mirror Motor Operation w/o Mirror Defogger & Driving Pos. Mem. (1 Of 4)
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Reverse the polarity, and check that the mirror turns to the right side.
  
  Fig 5: Inspecting Mirror Motor Operation w/o Mirror Defogger & Driving Pos. Mem. (2 Of 4)
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Connect the positive (+) lead from the battery to terminal 2 and the negative (-) lead to terminal 1, and check that the mirror turns upward.
  
  Fig 6: Inspecting Mirror Motor Operation w/o Mirror Defogger & Driving Pos. Mem. (3 Of 4)
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
4. Reverse the polarity, and check that the mirror turns downward.
If operation is not as specified, replace the mirror assembly.

Fig 7: Inspecting Mirror Motor Operation w/o Mirror Defogger & Driving Pos. Mem. (4 Of 4)
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
w/Mirror Defogger:
INSPECT MIRROR MOTOR OPERATION
1. Connect the positive (+) lead from the battery to terminal 1 and the negative (-) lead to terminal 2, and check that the mirror turns to the left side.
  
  Fig 8: Inspecting Mirror Motor Operation w/ Mirror Defogger (1 Of 4)
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Reverse the polarity, and check that the mirror turns downward.
  If operation is not as specified, replace the mirror assembly.
  
  Fig 9: Inspecting Mirror Motor Operation w/ Mirror Defogger (2 Of 4)
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Connect the positive (+) lead from the battery to terminal 4 and the negative (-) lead to terminal 2, and check that the mirror turns upward.
  
  Fig 10: Inspecting Mirror Motor Operation w/ Mirror Defogger (3 Of 4)
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
4. Reverse the polarity, and check that the mirror turns downward.
If operation is not as specified, replace the mirror assembly.

Fig 11: Inspecting Mirror Motor Operation w/ Mirror Defogger (4 Of 4)
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
w/Driving position memory:
INSPECT MIRROR POSITION MOTOR OPERATION
1. Connect the positive (+) lead from the battery to terminal 1 and the negative (-) lead to terminal 2, and check that the mirror turns to the left side.
  
  Fig 12: Inspecting Mirror Motor Operation w/ Driving Position Memory (1 Of 4)
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Reverse the polarity, and check that the mirror turns downward.
  If operation is not as specified, replace the mirror assembly.
  
  Fig 13: Inspecting Mirror Motor Operation w/ Driving Position Memory (2 Of 4)
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Connect the positive (+) lead from the battery to terminal 2 and the negative (-) lead to terminal 1, and check that the mirror turns upward.
  
  Fig 14: Inspecting Mirror Motor Operation w/ Driving Position Memory (3 Of 4)
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
4. Reverse the polarity, and check that the mirror turns downward.
If operation is not as specified, replace the mirror assembly.

Fig 15: Inspecting Mirror Motor Operation w/ Driving Position Memory (4 Of 4)
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
w/Driving position memory:
INSPECT MIRROR POSITION SENSORS OPERATION

HINT:

Strip off the vinyl tape of the connector and remove terminals 2, 3, 6, 7 and 9 from the connector housing.
1. Connect a series of three 1.5 V dry cell batteries.
2. Connect the positive (+) lead from the dry cell batteries to terminal 7 and the negative (-) lead to terminal 6.
3. Connect the positive (+) lead from the voltmeter to terminal 9 and the negative (-) lead to terminal 6.
4. Apply Battery voltage to terminals 2 and 3, then check that the voltage gradually changes, while the mirror moves between the uppermost position and lowermost position according to Fig 16 .
5. Disconnect the 4 leads of the battery and voltmeter.
6. Connect the positive (+) lead from the voltmeter to terminal 8 and negative (-) lead to terminal 6.
7. Apply Battery voltage to terminals 2 and 1, then inspect that the voltage gradually changes, while the mirror moves between the left-most position and right-most position according to Fig 19 .
Fig 19: Mirror Position And Voltage Chart
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Fig 20: Checking Right Movement
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Fig 21: Checking Left Movement
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If voltage value is not as specified, replace the motor assembly.