Inspection
1. INSPECT FRONT DOOR LOCK ASSEMBLY LH
(a) Check the door lock motor operation.
(1) Apply battery voltage to the motor connector and check the operation of the door lock.
Text in Illustration *a |
Lock |
*b |
Unlock |
*c |
Component without harness connected (Front Door Lock Assembly LH) |
- |
- |
OK:
Measurement Condition | Specified Condition |
|---|---|
Battery positive (+) → 4 (L) Battery negative (-) → 1 (UL) |
Lock |
Battery positive (+) → 1 (UL) Battery negative (-) → 4 (L) |
Unlock |
- If the result is not as specified, replace the front door lock assembly.
(b) Check the detection switch.
(1) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection | Switch Condition | Specified Condition |
|---|---|---|
8 (LSSR) - 7 (E) |
Lock |
10 kΩ or higher |
8 (LSSR) - 7 (E) |
Unlock |
Below 1 Ω |
- If the result is not as specified, replace the front door lock assembly.
(c) Check the door lock and unlock switch.
(1) Measure the resistance according to the value(s) in the table below.
Text in Illustration *a |
Lock |
*b |
Off |
*c |
Unlock |
*d |
Component without harness connected (Front Door Lock Assembly LH) |
Standard Resistance:
Tester Connection | Switch Condition | Specified Condition |
|---|---|---|
9 (L) - 7 (E) |
Lock |
Below 1 Ω |
9 (L) - 7 (E) 10 (UL) - 7 (E) |
Off |
10 kΩ or higher |
10 (UL) - 7 (E) |
Unlock |
Below 1 Ω |
- If the result is not as specified, replace the front door lock assembly.
2. INSPECT FRONT DOOR LOCK ASSEMBLY RH
(a) Check the door lock motor operation.
(1) Apply battery voltage to the door lock motor connector and check the operation of the door lock.
Text in Illustration *a |
Unlock |
*b |
Lock |
*c |
Component without harness connected (Front Door Lock Assembly RH) |
- |
- |
OK:
Measurement Condition | Specified Condition |
|---|---|
Battery positive (+) → 4 (L) Battery negative (-) → 1 (UL) |
Lock |
Battery positive (+) → 1 (UL) Battery negative (-) → 4 (L) |
Unlock |
- If the result is not as specified, replace the front door lock assembly.
(b) Check the detection switch.
(1) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection | Switch Condition | Specified Condition |
|---|---|---|
7 (LSSR) - 8 (E) |
Lock |
10 kΩ or higher |
7 (LSSR) - 8 (E) |
Unlock |
Below 1 Ω |
- If the result is not as specified, replace the front door lock assembly.
Test yourself
A quick Toyota 4Runner quiz: every answer comes with an explanation and a link to the manual page.