Land Cruiser URJ200 URJ202 GRJ200 VDJ200 - LIGHTING EXT
CHECK HARNESS AND CONNECTOR (HEADLIGHT SWIVEL ECU ASSEMBLY - BATTERY AND BODY GROUND)
CHECK HARNESS AND CONNECTOR (HEADLIGHT SWIVEL ECU ASSEMBLY - HEADLIGHT UNIT ASSEMBLY)
INSPECT HEADLIGHT UNIT ASSEMBLY
CHECK HEADLIGHT LEVELING MOTOR
DTC B2424 Headlight Leveling Motor LH Communication Malfunction
DTC B2425 Headlight Leveling Motor RH Communication Malfunction
DESCRIPTION
The headlight leveling motor operates by receiving the signal from the headlight swivel ECU. The headlight swivel ECU detects the headlight leveling motor status using the signal from the headlight leveling motor.
| DTC Code | DTC Detection Condition | Trouble Area |
| B2424 | Malfunction in the headlight leveling motor LH. Open or short in the headlight leveling motor LH communication circuit. | Headlight swivel ECU assembly Headlight unit assembly LH Headlight leveling motor LH Harness or connector |
| B2425 | Malfunction in the headlight leveling motor RH. Open or short in the headlight leveling motor RH communication circuit. | Headlight swivel ECU assembly Headlight unit assembly RH Headlight leveling motor RH Harness or connector |
WIRING DIAGRAM
INSPECTION PROCEDURE
- NOTICE:
| 1.CHECK FOR DTC |
Clear the DTCs ().
Check for DTCs ().
- OK:
- DTC B2424 or B2425 output does not occur.
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| OK | ||
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| 2.CHECK HARNESS AND CONNECTOR (HEADLIGHT SWIVEL ECU ASSEMBLY - BATTERY AND BODY GROUND) |
Disconnect the headlight swivel ECU connector.
Measure the voltage according to the value(s) in the table below.
- Standard Voltage:
Tester Connection Switch Condition Specified Condition E101-15 (IG) - Body ground Ignition switch ON 11 to 14 V
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
Tester Connection Condition Specified Condition E101-22 (E1) - Body ground Always Below 1 Ω
| *a | Front view of wire harness connector (to Headlight Swivel ECU Assembly) |
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| OK | |
| 3.CHECK HARNESS AND CONNECTOR (HEADLIGHT SWIVEL ECU ASSEMBLY - HEADLIGHT UNIT ASSEMBLY) |
Disconnect the E101 headlight swivel ECU connector.
Disconnect the A54*1 or A58*2 headlight unit connector.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
- for LH:
Tester Connection Condition Specified Condition E101-3 (LHT) - A54-8 (LHIG) Always Below 1 Ω E101-30 (LH+) - A54-3 (LH T) Always Below 1 Ω E101-27 (LH-) - A54-4 (LH E) Always Below 1 Ω E101-3 (LHT) - Body ground Always 10 kΩ or higher E101-30 (LH+) - Body ground Always 10 kΩ or higher E101-27 (LH-) - Body ground Always 10 kΩ or higher - for RH:
Tester Connection Condition Specified Condition E101-4 (RHT) - A58-8 (RHIG) Always Below 1 Ω E101-11 (RH+) - A58-3 (RH T) Always Below 1 Ω E101-28 (RH-) - A58-4 (RH E) Always Below 1 Ω E101-4 (RHT) - Body ground Always 10 kΩ or higher E101-11 (RH+) - Body ground Always 10 kΩ or higher E101-28 (RH-) - Body ground Always 10 kΩ or higher
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| OK | |
| 4.INSPECT HEADLIGHT UNIT ASSEMBLY |
Remove the headlight unit ().
| *a | Component without harness connected (Headlight Unit Assembly LH) | *b | Component without harness connected (Headlight Unit Assembly RH) |
| *c | Front view of wire harness connector (to Headlight Leveling Motor LH) | *d | Front view of wire harness connector (to Headlight Leveling Motor RH) |
Disconnect the headlight leveling motor connector.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
- for LH:
Tester Connection Condition Specified Condition 8 (LHIG) - 3 Always Below 1 Ω 3 (LH T) - 2 4 (LH E) - 1 - for RH:
Tester Connection Condition Specified Condition 8 (RHIG) - 3 Always Below 1 Ω 3 (RH T) - 2 4 (RH E) - 1
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| OK | |
| 5.CHECK HEADLIGHT LEVELING MOTOR |
Temporarily replace the headlight leveling motor with a new or normally functioning one ().
Check for DTCs ().
- OK:
- DTC B2424 or B2425 output does not occur.
| Result | Proceed to |
| OK | A |
| NG (for LHD) | B |
| NG (for RHD) | C |
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| A | ||
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