Mazda 6 2002 - No.3 Abs Warning Light Does Not Illuminate with Ignition Switch on; No.4 Brake System Warning Light Does Not Illuminate with Ignition Switch on; Illuminate with Ignition Switch on

TROUBLESHOOTING (ABS/TCS/DYNAMIC STABILITY CONTROL)
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NO.3 ABS WARNING LIGHT DOES NOT ILLUMINATE WITH IGNITION SWITCH ON
A6E699067650W07
Diagnostic procedure
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NO.4 BRAKE SYSTEM WARNING LIGHT DOES NOT ILLUMINATE WITH IGNITION SWITCH ON
A6E699067650W08
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3 ABS warning light does not illuminate with ignition switch on.
[TROUBLESHOOTING HINTS]
• Malfunction of instrument cluster or ABS/TCS HU/CM
STEP INSPECTION ACTION
1 COMFIRM DTC U1900 USING WDS OR
EQUIVALENT
• Retrieve DTC from PCM, ABS/TCS and
instrument cluster.
• Is DTC U1900 retrieved?
Yes Go to next step.
No Inspect instrment cluster. If OK, then go to step6.
2 COMFIRM THE FOLLOWING PIDs USING
WDS OR EQUIVALENT:
• ABS_MSG
• PCM_MSG
• Is not present massage displayed on WDS
or equivalent?
Yes Replace instrument cluster (open circuit in instrument
cluster).
No Network communication, for related system is malfunction.
Repair or replace as neccessary.
4 BRAKE system warning light does not illuminate with ignition switch on.
[TROUBLESHOOTING HINTS]
• Malfunction of instrument cluster or ABS/TCS HU/CM
STEP INSPECTION ACTION
1 COMFIRM DTC U1900 USING WDS OR
EQUIVALENT
• Retrieve DTC from PCM, ABS/TCS and
instrument cluster.
• Is DTC U1900 retrieved?
Yes Go to next step.
No Inspect instrment cluster. If OK, then go to step6.
2 COMFIRM THE FOLLOWING PIDs USING
WDS OR EQUIVALENT:
• ABS_MSG
• PCM_MSG
• Is not present massage displayed on WDS
or equivalent?
Yes Replace instrument cluster (open circuit in instrument
cluster).
No Network communication, for related system is malfunction.
Repair or replace as neccessary.