Mazda MX-6 1998, Workshop Manual

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TROUBLESHOOTING [SIGNAL LIGHTING SYSTEM]
9 One back-up light does not illuminate
TROUBLESHOOTING HINTS
Malfunction in back-up light operation circuit
© One back-up light does not illuminate
• Back-up light bulb malfunction
• Malfunction in wiring harness between back-up light switch or transaxle range switch malfunction and back-up light bulb
Malfunction in back-up light ground circuit
© One back-up light does not illuminate
• Malfunction in wiring harness between back-up light bulb and ground
STEP INSPECTION ACTION
Partially peel off trunk side trim,
c r 0 9 -1 7 TRUNK SIDE TRIM
REMOVAL/INSTALLATION
Remove rear combination light.
Inspect back-up light bulb not illuminating.
Is bulb okay?
Yes Go to next step.
No
Replace back-up light bulb.
tr 0 9-18 REAR COMBINATION LIGHT
REMOVAL/INSTALLATION
Is it a MTX vehicle?
Yes Go to step 3.
No Go to step 4.
Turn ignition switch to ON.
Move shift lever knob to reverse position.
Measure voltage at terminal D at rear
combination light connector of wiring harness.
(Inspect only back-up light which is not
illuminating.)
Is voltage
B+?
Yes Repair wiring harness between back-up light and ground.
No
Repair wiring harness between back-up light switch and
back-up light.
A > <
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L
e
JLul
W 6 U 9 0 1 W P K
Turn ignition switch to ON.
Move selector lever to reverse position.
Measure voltage at terminal D at rear
combination light connector of wiring harness.
(Inspect only back-up light which is not
illuminating.)
Is voltage
B+?
Yes
Repair wiring harness between back-up light and ground.
No
Repair wiring harness between transaxle range switch and
back-up light.
A
Ç
LaJ
pi
f
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Ltu
W 6 U 9 0 1 W P L
0 9 -0 1 L -1 2