Power Door Lock Control System Door Control Switch Circuit
DESCRIPTION
WIRING DIAGRAM
INSPECTION PROCEDURE
READ VALUE OF DATA LIST (FRONT PASSENGER SIDE DOOR CONTROL SWITCH ASSEMBLY)
INSPECT DOOR CONTROL SWITCH ASSEMBLY
CHECK WIRE HARNESS (DOOR CONTROL SWITCH ASSEMBLY - MAIN BODY ECU RH)
POWER DOOR LOCK CONTROL SYSTEM - Door Control Switch Circuit |
DESCRIPTION
When the lock side of the door control switch is pressed, continuity is established between terminals 3 and 2 of the switch. When the unlock side of the switch is pressed, continuity is established between terminals 1 and 2.Terminals L1 and UL1 of the main body ECU RH are connected to the door control switch and door lock/unlock request signals (by door control switch operation) are input to the ECU.The main body ECU RH constantly applies voltage to terminal 3 of the door control switch via terminal L1. When the door control switch is operated to lock all doors, current flows from terminal L1 to terminal 3. The main body ECU RH determines that this is door lock request signal input.The main body ECU RH also applies constant voltage to terminal 1 of the door control switch via terminal UL1. When the door control switch is operated to unlock the doors, current flows from terminal UL1 to terminal 1. The main body ECU RH determines that this is door unlock request signal input.
WIRING DIAGRAM
INSPECTION PROCEDURE
| 1.READ VALUE OF DATA LIST (FRONT PASSENGER SIDE DOOR CONTROL SWITCH ASSEMBLY) |
Check the DATA LIST to ensure proper function of the front passenger door lock switch.
BODY (Main Body ECU):Item
| Measurement Item /
Display (Range)
| Normal Condition
| Diagnostic Note
|
Door Lock SW-Lock
| Front passenger side door control switch lock signal
/ON or OFF
| ON: Door control switch is pushed to LOCK position
OFF: Door control switch is not pushed to LOCK position
| -
|
Door Lock SW-Unlock
| Front passenger side door control switch unlock signal
/ON or OFF
| ON: Door control switch is pushed to UNLOCK position
OFF: Door control switch is not pushed to UNLOCK position
| -
|
- OK:
- The display is as specified in the normal condition column.
| OK |
|
|
|
| PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE |
|
| 2.INSPECT DOOR CONTROL SWITCH ASSEMBLY |
Remove the door control switch assembly.
Measure the resistance according to the value(s) in the table below.
- Standard resistance:
Tester Connection
| Condition
| Specified Condition
|
2 - 3
| Lock
| Below 1 Ω
|
2 - 3
1 - 2
| OFF (Free)
| 10 kΩ or higher
|
1 - 2
| Unlock
| Below 1 Ω
|
| | REPLACE DOOR CONTROL SWITCH ASSEMBLY |
|
|
| 3.CHECK WIRE HARNESS (DOOR CONTROL SWITCH ASSEMBLY - MAIN BODY ECU RH) |
Disconnect the door control switch assembly connector.
Disconnect the ECU (cowl side J/B RH) connector.
Measure the resistance according to the value(s) in the table below.
- Standard resistance:
Tester Connection
(Symbols)
| Condition
| Specified Condition
|
L9-3 - RJ-7 (*1)
| Always
| Below 1 Ω
|
L9-1 - RJ-10 (*1)
| Always
| Below 1 Ω
|
L9-2 - Body ground (*1)
| Always
| Below 1 Ω
|
M17-3 - RJ-7 (*1)
| Always
| Below 1 Ω
|
M17-1 - RJ-10 (*2)
| Always
| Below 1 Ω
|
M17-2 - Body ground (*2)
| Always
| Below 1 Ω
|
RJ-7 - Body ground
| Always
| 10 kΩ or higher
|
RJ-10 - Body ground
| Always
| 10 kΩ or higher
|
*1: LHD Models
*2: RHD Models
| | REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
| OK |
|
|
|
| REPLACE MAIN BODY ECU RH (COWL SIDE J/B RH) |
|
