Mazda MX-6 1998, Workshop Manual

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TROUBLESHOOTING [EXTERIOR LIGHTING SYSTEM]
FOREWORD .............................................09—01J-1 Diagnostic In d e x ...................................... 0 9 -0 1 J-1
EXTERIOR LIGHTING SYSTEM Symptom Troubleshooting .................... 09-01 J-1
SYMPTOM TROUBLESHOOTING . . . . 09-01 J-1
09-01J TROUBLESHOOTING [EXTERIOR LIGHTING SYSTEM]
FOREWORD
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• Refer to 00-00 GENERAL INFORMATION and thoroughly read and understand the basic flow of
troubleshooting to properly perform the procedures.
EXTERIOR LIGHTING SYSTEM SYMPTOM TROUBLESHOOTING
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Diagnostic Index
• Use the chart below to verify the symptoms of the trouble in order to diagnose the appropriate area.
No.
Malfunction Symptom
1
Headlight auto light-off does not operate
2 Headlights do not illuminate
3 Low beam headlights do not illuminate
4 High beam headlights do not illuminate
5 Daytime running lights do not illuminate (Canada)
6 Daytime running lights do not turn off when parking brake lever is set (Canada)
7
Daytime running lights do not turn off when ignition switch is turned to LOCK or ACC (Canada)
8 TNS do not illuminate
9 License plate light does not Illuminate
10
Taillights do not illuminate
11
Parking lights do not illuminate
Symptom Troubleshooting
1
Headlight auto light-off does not operate
TROUBLESHOOTING HINTS
Malfunction in headlight auto light-off ground circuit
0
Headlight auto light-off does not operate
• Malfunction in wiring harness between
CPU
and ground
Malfunction in headlight auto light-off input signal circuit
© Headlight auto light-off does not operate
• Headlight high relay malfunction (With
DRL)
• Headlight relay malfunction
• TNS relay malfunction
•
Ignition switch malfunction
•
Malfunction in wiring harness between headlight high relay and
CPU
(With
DRL)
• Malfunction in wiring harness between headlight relay and
CPU
•
Malfunction in wiring harness between TNS relay and
CPU
• Malfunction in wiring harness between ignition switch and
CPU
Malfunction in headlight auto light-off operation circuit
©
Headlight auto light-off does not operate
• CPU
malfunction
STEP INSPECTION
ACTION
1 Is it equipped with DRL? Yes
Go to next step.
No Go to step 3.
2 Remove headlight high relay.
Inspect headlight high relay.
t r
09-18 HEADLIGHT HIGH RELAY
INSPECTION
Is headlight high relay okay?
Yes Go to next step.
No Replace headlight high relay,
cr 09-18 HEADLIGHT HIGH RELAY
REMOVAL/INSTALLATION
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