Mazda 2002 6 - 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

TROUBLESHOOTING (ABS/TCS/DYNAMIC STABILITY CONTROL)
P–109
P
NO.3 ABS WARNING LIGHT DOES NOT ILLUMINATE WITH IGNITION SWITCH ON
A6E699067650W07
Diagnostic procedure
End Of Sie
NO.4 BRAKE SYSTEM WARNING LIGHT DOES NOT ILLUMINATE WITH IGNITION SWITCH ON
A6E699067650W08
End Of Sie
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.