Lighting Systems; Headlight Auto Leveling System Wiring Circuit Diagram; Drl System Symptom Diagnosis - Suzuki GRAND VITARA JB416 Service Manual

9B-1 Lighting Systems:

Lighting Systems

Headlight Auto Leveling System wiring Circuit Diagram

2
3
4
9
[A]: Headlight leveling control module connector (viewed
from harness side)
1. Headlight leveling control module
2. Front height sensor
3. Rear height sensor
DRL System Symptom Diagnosis (If Equipped)
NOTE
• Use of SUZUKI scan tool makes it easy to check whether a faulty condition is on the input side or
output side of BCM. For checking procedure, refer to "Diagnosis Using Output Test Function of
SUZUKI Scan Tool" under "Scan Tool Data: in Section 10B".
• Check each part in the order from the top of the following list.
Condition
Headlight does not light
when lighting switch is in
OFF position and engine
is running
Schematic and Routing Diagram
5V
BLU/RED G51-13
G51-20
BLU/YEL
G51-22
BLU/BLK
5V
GRN G51-12
G51-19
GRN/YEL
G51-21
GRN/WHT
5V
BLU/BLK G51-16
12V 5V
YEL G51-1
BLK G51-9
[A]
9 6
24 23 22 21 20 19 18
4.
BCM
5. Right headlight leveling actuator
6. Left headlight leveling actuator
7. Combination meter
Diagnostic Information and Procedures
Possible cause
Lighting switch faulty
BCM faulty
Wiring or grounding faulty
1
12V
G51-10 YEL/RED
G51-17 RED
G51-23 GRN/RED
12V
G51-11 YEL/GRN
G51-18 GRN
G51-24 GRN/BLK
G51-6
BLU/WHT
5V
G51-3 RED/BLU
5V
G51-5 PNK
G51
5 3 1
17 16 13 12 11 10
Check lighting switch referring to "Headlight
Switch (in Lighting Switch) Inspection: ".
Check BCM for function referring to "Inspection
of BCM and its Circuits: in Section 10B in
related manual".
Repair circuit.
5
+B
6
7
8
11
10
8.
Headlight leveling warning light
9. Ignition switch
10. Lighting switch
11. Diagnosis connector
Correction / Reference Item
S5JB0E9202001
I5JB0D920001-01
S5JB0E9204006