Mazda MX-6 1998, Workshop Manual

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TROUBLESHOOTING [SIGNAL LIGHTING SYSTEM]
8 Back-up lights do not illuminate
TROUBLESHOOTING HINTS
Malfunction in back-up lights operation circuit
© Back-up lights do not illuminate
• Back-up light switch or transaxle range switch malfunction
• Back-up light bulb malfunction
• Malfunction in wiring harness between back-up light switch, transaxle range switch and back-up light bulb
Malfunction in back-up lights ground circuit
© Back-up lights do not illuminate
• Malfunction in wiring harness between back-up light bulb and ground
STEP INSPECTION ACTION
Is it a MTX vehicle?
Yes Go to step 2.
No Go to step 3.
Inspect back-up light switch.
tr 0 9 -1 8 BACK-UP LIGHT SWITCH
INSPECTION
Is back-up light switch okay?
Yes
Go to step 4.
No Replace back-up light switch.
tr 09-1 8 BACK-UP LIGHT SWITCH
REMOVAL/INSTALLTION
Inspect transaxle range switch.
tr 0 5 -1 7A ELECTRICAL SYSTEM
COMPONENT [LA4A-EL]
tr 0 5 -1 7B TRANSAXLE RANGE SWITCH
INSPECTION [GF4A-EL]
Is transaxle range switch okay?
Yes Go to step 5.
No Replace transaxle range switch.
tr 0 5 -1 7A TRANSAXLE RANGE SWITCH
REMOVAL/INSTALLATION [LA4A-EL]
tr
0 5 -1 7B TRANSAXLE RANGE SWITCH
REMOVAL/INSTALLATION [GF4A-EL]
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.
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.
W 6 U 9 0 1 W P H
Turn ignition switch to ON.
Move selector lever to reverse position.
Measure voltage at terminal D at rear
combination light connector of wiring harness.
Is voltage B+?
Yes
Repair wiring harness between back-up light switch and
back-up light.
No
Repair wiring harness between transaxle range switch and
back-up light.
A
Q
L
b
JL
d
L
e
JLtd
W 6 U 9 0 1 W P J
0 9 -0 1 L-11