Mazda MX-6 1998, Workshop Manual

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TROUBLESHOOTING
9
TCS indicator light flashes when TCS is not activated during driving
[TROUBLESHOOTING HINTS]
• Improper tire size or pressure
• Malfunction of ABS wheel-speed sensor, and/or sensor rotor
• Short to GND in TCS indicator light harness intermittently
STEP INSPECTION ACTION
1
Are tire size and pressure as specified? Yes Go to next step.
No Replace the tire with specified one, or adjust the pressure.
2* Is the harness between the ABS/TCS CM and
the TCS indicator light okay?
• There should be no open or short circuit
Yes Go to next step.
No Repair or replace wiring harness.
3
Inspect the ABS wheel-speed sensor/sensor
rotor.
tr 0 4 -1 3 FRONT ABS WHEEL-SPEED
SENSOR INSPECTION.
Is the result okay?
Yes Replace ABS/TCS CM.
No Replace ABS wheel-speed sensor/sensor rotor.
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
• When tires of different sizes are used or tire air pressure is insufficient, the TCS may activate. While the
TCS is operating, TCS OFF switch cannot be selected until the operation has been completed.
• When wheel spinning occurs, the TCS indicator light flashes. It indicates that the TCS system is operating
normally. If flashing is observed too often, however, inspect the above items.
• If any symptoms have occurred in the past but are now okay, malfunction of related harness could be the
possible cause and thus ABS CM is normal.
10
When IG switch is turned to ON, only TCS indicator light illuminates
[TROUBLESHOOTING HINTS]
• Malfunction of instrument cluster
• Malfunction of ABS/TCS CM
• Short to GND in TCS indicator light harness
STEP
INSPECTION ACTION
1*
Is the harness between the ABS/TCS CM and
the TCS indicator light okay?
• No shorted GND
Yes
Go to next step.
No Repair or replace wiring harness.
2
Are the valves in the combination meter okay? Yes Replace ABS/TCS CM.
No Replace the valves in the combination meter.
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
• The ABS warning light normally illuminates for 2— 4 seconds after ignition switch is turned to ON.
• If any symptoms have occurred in the past but are now okay, malfunction of related harness could be the
possible cause and thus ABS CM is normal.
0 4 -0 1 -1 9