DESCRIPTION
WIRING DIAGRAM
INSPECTION PROCEDURE
READ VALUE USING INTELLIGENT TESTER (DOOR COURTESY LIGHT SWITCH)
CHECK DOOR COURTESY LIGHT SWITCH
INSPECT FRONT DOOR COURTESY LIGHT SWITCH LH
CHECK HARNESS AND CONNECTOR (FRONT DOOR COURTESY LIGHT SWITCH LH - MAIN BODY ECU [COWL SIDE JUNCTION BLOCK LH])
INSPECT FRONT DOOR COURTESY LIGHT SWITCH RH
CHECK HARNESS AND CONNECTOR (FRONT DOOR COURTESY LIGHT SWITCH RH - MAIN BODY ECU [COWL SIDE JUNCTION BLOCK LH])
INSPECT REAR DOOR COURTESY LIGHT SWITCH LH
CHECK HARNESS AND CONNECTOR (REAR DOOR COURTESY LIGHT SWITCH LH - MAIN BODY ECU [COWL SIDE JUNCTION BLOCK LH])
INSPECT REAR DOOR COURTESY LIGHT SWITCH RH
CHECK HARNESS AND CONNECTOR (REAR DOOR COURTESY LIGHT SWITCH RH - MAIN BODY ECU [COWL SIDE JUNCTION BLOCK LH])
INSPECT VEHICLE TYPE
INSPECT BACK DOOR WITH MOTOR LOCK ASSEMBLY
CHECK HARNESS AND CONNECTOR (BACK DOOR WITH MOTOR LOCK ASSEMBLY - MAIN BODY ECU [COWL SIDE JUNCTION BLOCK LH] AND BODY GROUND)
INSPECT BACK DOOR LOCK ASSEMBLY
CHECK HARNESS AND CONNECTOR (BACK DOOR LOCK ASSEMBLY - MAIN BODY ECU [COWL SIDE JUNCTION BLOCK LH] AND BODY GROUND)
LIGHTING SYSTEM - Door Courtesy Switch Circuit
DESCRIPTION
The main body ECU receives a door open/closed signal from each door courtesy light switch.
WIRING DIAGRAM
INSPECTION PROCEDURE
| 1.READ VALUE USING INTELLIGENT TESTER (DOOR COURTESY LIGHT SWITCH) |
Using the intelligent tester, read the Data List ().
Main Body| Tester Display | Measurement Item/Range | Normal Condition | Diagnostic Note |
| D Door Courtesy SW | Front door courtesy light switch LH signal / ON or OFF | ON: Front door courtesy light switch LH on
OFF: Front door courtesy light switch LH off | - |
| P Door Courtesy SW | Front door courtesy light switch RH signal / ON or OFF | ON: Front door courtesy light switch RH on
OFF: Front door courtesy light switch RH off | - |
| RL Door Courtesy SW | Rear door courtesy light switch LH signal / ON or OFF | ON: Rear door courtesy light switch LH on
OFF: Rear door courtesy light switch LH off | - |
| RR Door Courtesy SW | Rear door courtesy light switch RH signal / ON or OFF | ON: Rear door courtesy light switch RH on
OFF: Rear door courtesy light switch RH off | - |
| Back Door Courtesy SW | Back door courtesy light switch signal / ON or OFF | ON: Back door courtesy light switch on
OFF: Back door courtesy light switch off | - |
- OK:
- Door courtesy light switch on/off
| OK | |
| |
| PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE ()
|
|
| 2.CHECK DOOR COURTESY LIGHT SWITCH |
Result| Result | Proceed to |
| Front door courtesy light switch LH does not operate | A |
| Front door courtesy light switch RH does not operate | B |
| Rear door courtesy light switch LH does not operate | C |
| Rear door courtesy light switch RH does not operate | D |
| Back door courtesy light switch does not operate | E |
| 3.INSPECT FRONT DOOR COURTESY LIGHT SWITCH LH |
Remove the front door courtesy light switch LH ().
Inspect the front door courtesy light switch LH ().
| | REPLACE FRONT DOOR COURTESY LIGHT SWITCH LH ()
|
|
|
| 4.CHECK HARNESS AND CONNECTOR (FRONT DOOR COURTESY LIGHT SWITCH LH - MAIN BODY ECU [COWL SIDE JUNCTION BLOCK LH]) |
Disconnect the K2 front door courtesy light switch LH connector.
for LHD:
Disconnect the E1 main body ECU connector.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
| Tester Connection | Condition | Specified Condition |
| K2-1 - E1-24 (DCTY) | Always | Below 1 Ω |
| K2-1 - Body ground | Always | 10 kΩ or higher |
for RHD:
Disconnect the E2 main body ECU connector.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
| Tester Connection | Condition | Specified Condition |
| K2-1 - E2-21 (PCTY) | Always | Below 1 Ω |
| K2-1 - Body ground | Always | 10 kΩ or higher |
| | REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
| OK | |
| |
| REPLACE MAIN BODY ECU (COWL SIDE JUNCTION BLOCK LH) |
|
| 5.INSPECT FRONT DOOR COURTESY LIGHT SWITCH RH |
Remove the front door courtesy light switch RH ().
Inspect the front door courtesy light switch RH ().
| | REPLACE FRONT DOOR COURTESY LIGHT SWITCH RH ()
|
|
|
| 6.CHECK HARNESS AND CONNECTOR (FRONT DOOR COURTESY LIGHT SWITCH RH - MAIN BODY ECU [COWL SIDE JUNCTION BLOCK LH]) |
Disconnect the L1 front door courtesy light switch RH switch connector.
for LHD:
Disconnect the E2 main body ECU connector.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
| Tester Connection | Condition | Specified Condition |
| L1-1 - E2-21 (PCTY) | Always | Below 1 Ω |
| L1-1 - Body ground | Always | 10 kΩ or higher |
for RHD:
Disconnect the E1 main body ECU connector.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
| Tester Connection | Condition | Specified Condition |
| L1-1 - E1-24 (DCTY) | Always | Below 1 Ω |
| L1-1 - Body ground | Always | 10 kΩ or higher |
| | REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
| OK | |
| |
| REPLACE MAIN BODY ECU (COWL SIDE JUNCTION BLOCK LH) |
|
| 7.INSPECT REAR DOOR COURTESY LIGHT SWITCH LH |
Remove the rear door courtesy light switch LH ().
Inspect the rear door courtesy light switch LH ().
| | REPLACE REAR DOOR COURTESY LIGHT SWITCH LH ()
|
|
|
| 8.CHECK HARNESS AND CONNECTOR (REAR DOOR COURTESY LIGHT SWITCH LH - MAIN BODY ECU [COWL SIDE JUNCTION BLOCK LH]) |
Disconnect the 2C main body ECU connector.
Disconnect the K3 rear door courtesy light switch LH connector.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
| Tester Connection | Condition | Specified Condition |
| K3-1 - 2C-2 (LCTY) | Always | Below 1 Ω |
| K3-1 - Body ground | Always | 10 kΩ or higher |
| | REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
| OK | |
| |
| REPLACE MAIN BODY ECU (COWL SIDE JUNCTION BLOCK LH) |
|
| 9.INSPECT REAR DOOR COURTESY LIGHT SWITCH RH |
Remove the rear door courtesy light switch RH ().
Inspect the rear door courtesy light switch RH ().
| | REPLACE REAR DOOR COURTESY LIGHT SWITCH RH ()
|
|
|
| 10.CHECK HARNESS AND CONNECTOR (REAR DOOR COURTESY LIGHT SWITCH RH - MAIN BODY ECU [COWL SIDE JUNCTION BLOCK LH]) |
Disconnect the L2 rear door courtesy light switch RH connector.
except Double Swing Out Type:
Disconnect the E2 main body ECU connector.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
| Tester Connection | Condition | Specified Condition |
| L2-1 - E2-7 (RCTY) | Always | Below 1 Ω |
| L2-1 - Body ground | Always | 10 kΩ or higher |
for Double Swing Out Type:
Disconnect the E1 main body ECU connector.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
| Tester Connection | Condition | Specified Condition |
| L2-1 - E1-17 (RCTY) | Always | Below 1 Ω |
| L2-1 - Body ground | Always | 10 kΩ or higher |
| | REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
| OK | |
| |
| REPLACE MAIN BODY ECU (COWL SIDE JUNCTION BLOCK LH) |
|
Check the vehicle type.
Result| Result | Proceed to |
| for Double Swing Out Type | A |
| except Double Swing Out Type | B |
| 12.INSPECT BACK DOOR WITH MOTOR LOCK ASSEMBLY |
Remove the back door with motor lock assembly ().
Inspect the back door with motor lock assembly ().
| | REPLACE BACK DOOR WITH MOTOR LOCK ASSEMBLY ()
|
|
|
| 13.CHECK HARNESS AND CONNECTOR (BACK DOOR WITH MOTOR LOCK ASSEMBLY - MAIN BODY ECU [COWL SIDE JUNCTION BLOCK LH] AND BODY GROUND) |
Disconnect E2 main body ECU connector.
Disconnect W3 back door with motor lock connector.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
| Tester Connection | Condition | Specified Condition |
| W3-2 (+) - E2-25 (BCTY) | Always | Below 1 Ω |
| W3-1 (E) - Body ground |
| W3-2 (+) - Body ground | Always | 10 kΩ or higher |
| | REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
| OK | |
| |
| REPLACE MAIN BODY ECU (COWL SIDE JUNCTION BLOCK LH) |
|
| 14.INSPECT BACK DOOR LOCK ASSEMBLY |
Remove the back door lock ().
Inspect the back door lock ().
| | REPLACE BACK DOOR LOCK ASSEMBLY ()
|
|
|
| 15.CHECK HARNESS AND CONNECTOR (BACK DOOR LOCK ASSEMBLY - MAIN BODY ECU [COWL SIDE JUNCTION BLOCK LH] AND BODY GROUND) |
Disconnect the E2 main body ECU connector.
w/o Power Back Door:
Disconnect the S1 back door lock connector.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
| Tester Connection | Condition | Specified Condition |
| S1-3 (+) - E2-25 (BCTY) | Always | Below 1 Ω |
| S1-1 (ACT-) - Body ground |
| S1-3 (+) - Body ground | Always | 10 kΩ or higher |
w/ Power Back Door:
Disconnect the S22 back door lock connector.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
| Tester Connection | Condition | Specified Condition |
| S22-3 (CTY) - E2-25 (BCTY) | Always | Below 1 Ω |
| S22-4 (E) - Body ground |
| S22-3 (CTY) - Body ground | Always | 10 kΩ or higher |
| | REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
| OK | |
| |
| REPLACE MAIN BODY ECU (COWL SIDE JUNCTION BLOCK LH) |
|