Suzuki SWIFT RS415 2017, Service Manual

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9B-3 Lighting Systems:
Turn Signal and Hazard Warning Light Symptom Diagnosis
S4RS0A9204003
Clearance, Tail and License Plate Light Symptom Diagnosis
S4RS0A9204004
Condition Possible cause Correction / Reference Item
Flash rate high or one
side only flashes Bulb blown on “flash rate high”-side Replace bulb.
Incorrect bulb Replace bulb.
Turn signal / hazard warning relay faulty Check turn signal / hazard warning relay
referring to “Turn Signal and Hazard Warning
Relay Inspection: ”.
Open circuit or high resistance existing
either; between turn signal switch and
non lighting bulb, or between hazard
warning switch and non lighting bulb Repair circuit.
Wiring or grounding faulty Repair circuit.
No flashing
NOTE:
• Use 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.
Circuit fuse(s) blown Replace fuse(s) and check for short circuit.
Hazard warning switch faulty Check hazard warning switch referring to
“Hazard Warning Switch Inspection: ”.
Turn signal light switch faulty Check turn signal light switch referring to “Turn
Signal Light Switch (in Lighting Switch)
Inspection: ”.
Turn signal / hazard warning relay faulty Check turn signal / hazard warning relay
referring to “Turn Signal and Hazard Warning
Relay Inspection: ”.
Open circuit or high resistance existing
between battery and switch Repair circuit.
Wiring or grounding faulty Repair circuit.
BCM faulty Replace after making sure that none of above
parts is faulty.
Flash rate low Supply voltage low Check charging system.
Turn signal / hazard warning relay faulty Check turn signal / hazard warning relay
referring to “Turn Signal and Hazard Warning
Relay Inspection: ”.
Condition Possible cause Correction / Reference Item
All lights do not light up Circuit fuse blown Replace fuse and check for short circuit.
Lighting and dimmer switch of
combination switch faulty Check lighting and dimmer switch referring to
“Headlight Switch (in Lighting Switch)
Inspection: ”.
Wiring or grounding faulty Repair circuit.
Some lights do not light
up Bulb(s) blown Replace bulb(s).
Wiring or grounding faulty Repair circuit.