Mazda MX-6 1998, Руководство по ремонту, Страница: 1101 / 1282

TROUBLESHOOTING [INSTRUMENTATION/DRIVER INFO.]
2 Speedometer does not operate
TROUBLESHOOTING HINTS
Malfunction in speedometer input signal circuit
© Speedometer does not operate
• Vehicle speedometer sensor malfunction
• Print plate malfunction
• Display unit assembly malfunction
• Malfunction in wiring harness between instrument cluster and vehicle speedometer sensor
Malfunction in speedometer operation circuit
© Speedometer does not operate
• Display unit assembly malfunction
STEP INSPECTION ACTION
Turn ignition switch to LOCK.
Disconnect negative battery cable.
After 30 seconds or more, reconnect
negative battery cable.
Turn ignition switch to ON and LOCK 3 times.
Turn ignition switch to ON.
Push odometer/tripmeter switch 3 times.
r -
W 6 U 9 0 1 W U 8
Select DTC 12 by pushing odometer/tripmeter
switch.
Does speedometer needle move full scale
and then indicate
60 mph?
Yes Go to next step.
No Replace display unit assembly,
c r 0 9 -2 2 INSTRUMENT CLUSTER
DISASSEMBLY/ASSEMBLY
Select DTC 10 by pushing odometer/tripmeter
switch.
Start engine and drive vehicle.
Does LCD indicate “ON”?
Yes Replace display unit assembly.
EF 0 9-22 INSTRUMENT CLUSTER
DISASSEMBLY/ASSEMBLY
No Go to next step.
Remove meter hood.
Remove instrument cluster.
Measure voltage between terminal 2C (14-pin)
and 2D (14-pin) of instrument cluster
connector of wiring harness while rotating the
front wheels slowly.
Is voltage 5 V?
Yes
Go to step 5.
No Go to next step.
2D '
n
2C
W 6 U 9 0 1 W U B
0 9 -0 1 P -5