Mazda 6 2002 - No.7 ABS WARNING LIGHT STAYS on

TROUBLESHOOTING (ABS/TCS/DYNAMIC STABILITY CONTROL)
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NO.7 ABS WARNING LIGHT STAYS ON MORE THAN 4 SECONDS WITH IGNITION SWITCH ON
A6E699067650W11
Diagnostic procedure
STEP INSPECTION ACTION
7 ABS warning light stays on more than 4 seconds with ignition switch on.
[TROUBLESHOOTING HINTS]
• ABS/TCS CM detects ABS system malfunction.
STEP INSPECTION ACTION
1 INSPECT WIRING HARNESS BETWEEN ABS/
TCS HU/CM AND DLC-2 (DATA LINK
CONNECTOR-2) FOR CONTINUITY AND
SHORTS
Perform DTC inspection.
Is error message displayed regarding
communication between ABS/TCS HU/CM and
WDS or equivalent?
Yes If the communication error message is displayed even after
inspecting according to procedures displayed in the WDS or
equivalent, go to Step 4.
No Go to next step.
2 CHECK FOR DTCs IN ABS/TCS HU/CM
Have DTCs been recorded in memory?
Yes Perform inspection using appropriate DTC.
No Go to next step.
3 INSPECT PID/DATA IN ABS/TCS HU/CM
Inspect the following items using WDS or
equivalent PID/DATA monitor function.
• ABS_LAMP (ABS warning light)
Is ABS_LAMP ON after more than 4
seconds with ignition switch on?
Yes Replace ABS/TCS HU/CM (open circuit or short to ground in
ABS/TCS HU/CM).
No Inspect instrment cluster.
*
4
INSPECT WIRING HARNESS BETWEEN ABS/
TCS HU/CM AND DLC-2 (DATA LINK
CONNECTOR-2) FOR CONTINUITY
Disconnect ABS/TCS HU/CM connector.
Connect the SST ( 49 G066 001) (vehicle
harness side only).
Is there continuity between SST connector
terminal X and data link connector?
Yes Go to next step.
No Repair wiring harness between ABS/TCS HU/CM and data
link connector.
*
5
INSPECT WIRING HARNESS BETWEEN ABS/
TCS HU/CM AND DLC-2 (DATA LINK
CONNECTOR-2) FOR SHORT TO B+
Is voltage approximately 12V at SST connector
terminal X?
Yes Repair wiring harness between ABS/TCS HU/CM and data
link connector.
No Go to next step.