Dtc B2417 Headlight Beam Level Control Motor Lh Malfunction
DESCRIPTION
WIRING DIAGRAM
INSPECTION PROCEDURE
CHECK FOR DTC
PERFORM ACTIVE TEST USING GTS (HL AUTO LEVELING)
CHECK HEADLIGHT LEVELING MOTOR
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 B2417 Headlight Beam Level Control Motor LH Malfunction |
DTC B2418 Headlight Beam Level Control Motor RH Malfunction |
DESCRIPTION
The headlight leveling motor receives a signal from the headlight swivel ECU to operate. The headlight swivel ECU receives a signal indicating the operating conditions of the headlight leveling motor.DTC Code
| DTC Detection Condition
| Trouble Area
|
B2417
| - Malfunction in the headlight leveling motor LH.
- Open or short in the headlight leveling motor LH circuit.
| - Headlight swivel ECU assembly
- Headlight unit assembly LH
- Headlight leveling motor LH
- Harness or connector
|
B2418
| - Malfunction in the headlight leveling motor RH.
- Open or short in the headlight leveling motor RH circuit.
| - Headlight swivel ECU assembly
- Headlight unit assembly RH
- Headlight leveling motor RH
- Harness or connector
|
WIRING DIAGRAM
INSPECTION PROCEDURE
- NOTICE:
- Inspect the fuses for circuits related to this system before performing the following inspection procedure.
- After replacing the headlight swivel ECU, initialization of the ECU is necessary (Click here).
Clear the DTCs (Click here).
Check for DTCs (Click here).
- OK:
- DTC B2417 or B2418 output does not occur.
2.PERFORM ACTIVE TEST USING GTS (HL AUTO LEVELING) |
Using the GTS, perform the Active Test (Click here).
AFSTester Display
| Test Part
| Control Range
| Diagnostic Note
|
HL Auto Leveling
| This test activates the Leveling Motor of the LH and RH headlights. By activating the Leveling Motor, illumination direction of the headlights can be moved up/down.
| Up, Down, Stop
| Perform the Active Test with the vehicle stopped, the ignition switch ON and the low beam headlights on.
|
- OK:
- Headlight leveling motors operate normally.
3.CHECK HEADLIGHT LEVELING MOTOR |
Temporarily replace the headlight leveling motor with a new or normally functioning one (Click here).
Check for DTCs (Click here).
- OK:
- DTC B2417 or B2418 output does not occur.
ResultResult
| Proceed to
|
OK
| A
|
NG (for LHD)
| B
|
NG (for RHD)
| C
|
| REPLACE HEADLIGHT SWIVEL ECU ASSEMBLY (Click here) |
|
|
| REPLACE HEADLIGHT SWIVEL ECU ASSEMBLY (Click here) |
|
|
A |
|
|
|
END (HEADLIGHT LEVELING MOTOR WAS DEFECTIVE) |
|
4.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
|
Text in Illustration*a
| Front view of wire harness connector (to Headlight Swivel ECU Assembly)
|
| REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
5.CHECK HARNESS AND CONNECTOR (HEADLIGHT SWIVEL ECU ASSEMBLY - HEADLIGHT UNIT ASSEMBLY) |
Disconnect the E101 headlight swivel ECU connector.
Disconnect the A66*1 or A69*2 headlight unit connector.
- *1: for LH
- *2: for RH
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
- for LH:
Tester Connection
| Condition
| Specified Condition
|
E101-1 (SMBL) - A66-2 (LHIG)
| Always
| Below 1 Ω
|
E101-30 (LH+) - A66-3 (LH T)
| Always
| Below 1 Ω
|
E101-27 (LH-) - A66-1 (LH E)
| Always
| Below 1 Ω
|
E101-1 (SMBL) - 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
|
E101-2 (SMBR) - A69-2 (RHIG)
| Always
| Below 1 Ω
|
E101-11 (RH+) - A69-3 (RH T)
| Always
| Below 1 Ω
|
E101-28 (RH-) - A69-1 (RH E)
| Always
| Below 1 Ω
|
E101-2 (SMBR) - 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
|
| REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
6.INSPECT HEADLIGHT UNIT ASSEMBLY |
Remove the headlight unit (Click here).
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
|
2 (LHIG) - 1
| Always
| Below 1 Ω
|
3 (LH T) - 2
|
1 (LH E) - 3
|
- for RH:
Tester Connection
| Condition
| Specified Condition
|
2 (RHIG) - 1
| Always
| Below 1 Ω
|
3 (RH T) - 2
|
1 (RH E) - 3
|
Text in Illustration*A
| for LH
|
*B
| for RH
|
*a
| Front view of wire harness connector (to Headlight Leveling Motor)
|
*b
| Front view of wire harness connector
|
7.CHECK HEADLIGHT LEVELING MOTOR |
Temporarily replace the headlight leveling motor with a new or normally functioning one (Click here).
Check for DTCs (Click here).
- OK:
- DTC B2417 or B2418 output does not occur.
ResultResult
| Proceed to
|
OK
| A
|
NG (for LHD)
| B
|
NG (for RHD)
| C
|
| REPLACE HEADLIGHT SWIVEL ECU ASSEMBLY (Click here) |
|
|
| REPLACE HEADLIGHT SWIVEL ECU ASSEMBLY (Click here) |
|
|
A |
|
|
|
END (HEADLIGHT LEVELING MOTOR WAS DEFECTIVE) |
|