Mazda 6 2002 - Panel Light Control Switch Inspection

T54
INTERIOR LIGHTING SYSTEM
PANEL LIGHT CONTROL SWITCH INSPECTION
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1. Connect the connector to the panel light control switch.
2. Connect the negative battery cable.
3. Measure the voltage at the panel light control switch using voltmeter.
• When inspecting terminal B for continuity, disconnect the panel light control switch connector.
4. If the value are not as specified in the Terminal Voltage List (Reference), inspect the parts under Action and
related wiring harnesses.
5. If the system does not work properly even though the parts or related wiring harnesses do not have any
malfunction, replace the panel light control switch.
Terminal Voltage Table (Reference)
Terminal Signal Connected to Test condition
Voltage (V)/
Continuity
Action
A
TNS (Without
running light
system)
TNS relay
Headlight switch at TNS or headlight
position
B+
• Inspect TNS
relay (See T24
RELAY
INSPECTION)
• Inspect ILLUMI
10A fuse
• Inspect related
harness
Other 0
Running light
(With running
light system)
Running light unit
Headlight switch at TNS or headlight
position
B+
• Inspect running
light unit
(See T46
RUNNING LIGHT
UNIT
INSPECTION)
• Inspect related
harness
Other 0
C Illumination Each illumination
Inspect using an oscilloscope (See T
55 Terminal C inspection)

• Inspect each
illumination
• Inspect related
harness
BGround GND
Under any condition: inspect for
continuity to ground
Yes
• Inspect GND
• Inspect related
harness
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