Mazda MX-6 1998, Workshop Manual

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TROUBLESHOOTING
13 When IG switch is turned to ON, all ABS warning light, TCS indicator light and TCS OFF light do not illuminate
[TROUBLESHOOTING HINTS]
• Burnt out bulb or short in related harness
• Poor ABS CM ground
• Malfunction of power supply circuit of ABS CM
• Malfunction of ABS CM
STEP
INSPECTION ACTION
1 Inspect the instrument cluster.
• Do other lights illuminate when the ignition
switch is turned to ON?
Yes Verify that diagnostic trouble code is in memory. Repair as
necessary. If no DTC is displayed, go to next step.
No
Inspect meter fuse. If fuse is melted, check to see if there
Is short to ground circuit between the ignition switch and
fuse panel, and the ground between the fuse panel and
the warning light.
2* Inspect the terminals for any looseness or
deformations between:
• ABS/TCS CM and combination meter
• Combination meter and fuse
• Fuse and ignition switch
for the following lights:
• ABS warning light
• TCS indicator light
• TCS OFF light
Is everything okay?
Yes Go to next step.
No Repair or replace harness.
3
Inspect the bulbs for the following lights:
• ABS warning light
• TCS indicator light
• TCS OFF light
Is everything okay? Yes Go to next step.
No Replace the valves.
4
Inspect terminal Z and D of the ABS/TCS CM
connector for connecting and fitting condition.
Verify that there are no deformations or
looseness. Are they okay?
Yes Go to next step.
No Repair the deformed or loosened terminals.
5*
When the engine is idle, inspect the voltage at
terminal Z of ABS/TCS CM.
Is
the voltage
10 V or more?
Yes Go to next step.
No Repair or replace harnesses.
6* Inspect the continuity between the body
ground and the ground terminal on the
ABS/TCS CM.
Is there continuity?
Yes Replace the ABS/TCS CM.
No Repair or replace harnesses.
C a u tio n
• R e c h e c k th e d ia g n o s tic tro u b le c o d e a fte r re p a ir c o m p le tio n .
N o te
• If any symptoms have occurred in the past but are now okay, poor harness could be the possible cause
and thus ABS CM is normal.
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