Section 578 (Power Door Lock Control System): Inspection

WARNING: This page is about a different car, the 2003 Toyota Sequoia. However, it is still accessible from the selected car via links, so may be relevant.

INSPECT DRIVER DOOR KEY LOCK AND UNLOCK SWITCH CONTINUITY

Fig 1: Identifying Driver Door Key Lock And Unlock Switch Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

DRIVER DOOR KEY LOCK AND UNLOCK SWITCH SPECIFICATIONS

Switch Position	Tester Connection	Specified Condition
LOCK	3 - 5	Continuity
OFF	-	No Continuity
UNLOCK	3-6	Continuity

If continuity is not as specified, replace the door lock motor.

INSPECT PASSENGER'S DOOR KEY LOCK AND UNLOCK SWITCH CONTINUITY

Fig 2: Identifying Passenger Door Key Lock And Unlock Switch Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

PASSENGER SIDE DOOR KEY LOCK AND UNLOCK SWITCH SPECIFICATIONS

Switch Position	Tester Connection	Specified Condition
LOCK	2 - 4	Continuity
OFF	-	No Continuity
UNLOCK	1-4	Continuity

If continuity is not as specified, replace the door lock motor.

INSPECT DRIVER'S DOOR UNLOCK DETECTION SWITCH CONTINUITY

Fig 3: Identifying Driver Side Door Unlock Detection Switch Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

DRIVER SIDE DOOR UNLOCK DETECTION SWITCH SPECIFICATIONS

Switch Position	Tester Connection	Specified Condition
OFF (Door Lock Set To LOCK)	-	No Continuity
ON (Door Lock Set To UNLOCK)	3-4	Continuity

If continuity is not as specified, replace the door lock motor.

INSPECT PASSENGER'S DOOR UNLOCK DETECTION SWITCH CONTINUITY

Fig 4: Identifying Passenger Side Door Unlock Detection Switch Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

PASSENGER SIDE DOOR UNLOCK DETECTION SWITCH SPECIFICATIONS

Switch Position	Tester Connection	Specified Condition
OFF (Door Lock Set To LOCK)	-	No Continuity
ON (Door Lock Set To UNLOCK)	3-4	Continuity

If continuity is not as specified, replace the door lock motor.

INSPECT REAR DOOR UNLOCK DETECTION SWITCH CONTINUITY

Fig 5: Identifying Rear Door Unlock Detection Switch Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

REAR DOOR UNLOCK DETECTION SWITCH CONTINUITY SPECIFICATIONS

Switch Position	Tester Connection	Specified Condition
OFF (Door Lock Set To LOCK)	-	No Continuity
ON (Door Lock Set To UNLOCK)	3-4 (Left Side) 1 - 2 (Right Side)	Continuity

If continuity is not as specified, replace the door lock motor.

INSPECT DRIVER'S DOOR LOCK MOTOR OPERATION
1. Connect the positive (+) lead from the battery to terminal 1 and the negative (-) lead to terminal 2, and check that the door lock cable moves to UNLOCK position.
2. Reverse the polarity and check that the door lock cable moves to LOCK position.
If operation is not as specified, replace the door lock motor.

Fig 6: Inspecting Driver Side Door Lock Motor Operation
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
INSPECT PASSENGER'S DOOR LOCK MOTOR OPERATION
1. Connect the positive (+) lead from the battery to terminal 5 and the negative (-) lead to terminal 6, and check that the door lock cable moves to UNLOCK position.
  
  Fig 7: Inspecting Passenger Side Door Lock Motor Operation
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Reverse the polarity and check that the door lock cable moves to LOCK position.
If operation is not as specified, replace the door lock motor.
INSPECT REAR LEFT SIDE DOOR LOCK MOTOR OPERATION
1. Connect the positive (+) lead from the battery to terminal 1 and the negative (-) lead to terminal 2, and check that the door lock cable moves to UNLOCK position.
  
  Fig 8: Inspecting Rear Left Side Door Lock Motor Operation
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Reverse the polarity and check that the door lock cable moves to LOCK position.
If operation is not as specified, replace the door lock motor.
INSPECT REAR RIGHT SIDE DOOR LOCK MOTOR OPERATION
1. Connect the positive (+) lead from the battery to terminal 3 and the negative (-) lead to terminal 4, and check that the door lock cable moves to UNLOCK position.
  
  Fig 9: Inspecting Rear Right Side Door Lock Motor Operation
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Reverse the polarity and check that the door lock cable moves to LOCK position.
If operation is not as specified, replace the door lock motor.
INSPECT BACK DOOR LOCK MOTOR OPERATION
1. Connect the positive (+) lead from the battery to terminal 3 and the negative (-) lead to terminal 4, and check that the door lock cable moves to UNLOCK position.
  
  Fig 10: Inspecting Back Door Lock Motor Operation
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Reverse the polarity and check that the door lock cable moves to LOCK position.
If operation is not as specified, replace the door lock motor.

INSPECT BACK DOOR UNLOCK DETECTION SWITCH CONTINUITY

Fig 11: Identifying Back Door Unlock Detection Switch Terminals

BACK DOOR UNLOCK DETECTION SWITCH SPECIFICATIONS

Switch Position	Tester Connection	Specified Condition
OFF (Door Lock Set To LOCK)	-	No Continuity
ON (Door Lock Set To UNLOCK)	1-2	Continuity

If continuity is not as specified, replace the back door lock motor.

INSPECT BACK DOOR KEY LOCK AND UNLOCK CONTROL SWITCH CONTINUITY

Fig 12: Inspecting Back Door Key Lock And Unlock Control Switch Continuity

BACK DOOR KEY LOCK AND UNLOCK CONTROL SWITCH CONTINUITY SPECIFICATIONS

Switch Position	Tester Connection	Specified Condition
LOCK	1 - 3	Continuity
OFF	-	No Continuity
UNLOCK	2 - 3	Continuity

If continuity is not as specified, replace the switch.