Suzuki GRAND VITARA JB416, Service Manual

Page: 395 / 474

Lighting Systems: 9B-2
Turn Signal and Hazard Warning Light Symptom Diagnosis
S5JB0E9204009
Headlight lights even if
engine stop and lighting
switch is OFF position Lighting switch faulty Check system referring to “Headlight Switch (in
Lighting Switch) Inspection: ”.
Wiring or grounding faulty Repair circuit.
BCM faulty Check BCM for function referring to “Inspection
of BCM and its Circuits: in Section 10B in
related manual”.
Condition Possible cause Correction / Reference Item
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: in related manual”.
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 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.
Circuit fuse(s) blown Replace fuse(s) and check for short circuit.
Turn signal / hazard warning relay faulty Check turn signal / hazard warning relay
referring to “Turn Signal and Hazard Warning
Relay Inspection: in related manual”.
Turn signal light switch faulty Check turn signal light switch referring to “Turn
Signal Light Switch (in Lighting Switch)
Inspection: ”.
Hazard warning switch faulty Check hazard warning switch referring to
“Hazard Warning Switch Inspection: in related
manual”.
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: in related manual”.