Mazda 6 2002 - Dtc B1342; Dtc B1483, B1484, B1486

P74
ON-BOARD DIAGNOSTIC (DYNAMIC STABILITY CONTROL)
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DTC B1342
A6E697367650W04
Caution
•
••
• When attaching the tester lead to the DSC HU/CM connector the SST (49 G066 004) must be used.
Diagnostic procedure
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DTC B1483, B1484, B1486
A6E697367650W05
Caution
•
••
• When attaching the tester lead to the DSC HU/CM connector the SST (49 G066 004) must be used.
DTC B1342 DSC HU/CM
DETECTION
CONDITION
The on-board diagnostic function detects control module malfunction.
POSSIBLE
CAUSE
• Malfunction of DSC HU/CM
STEP INSPECTION ACTION
1 VERIFY CURRENT STATUS OF
MALFUNCTION
• Clear DTC from memory.
(See P46 Clearing DTCs Procedures)
• Start engine and drive vehicle at 10 km/h
{6.2 mph} or above.
• Is same DTC present?
Yes Replace DSC HU/CM, then go to next step.
No Inspect intermittent concern using the same procedure as
engine control system.
2 VERIFY AFTER REPAIR PROCEDURE
• Is there any other DTC present?
Yes Go to applicable DTC inspection.
No Troubleshooting completed.
DTC B1483, B1484, B1486 Brake switch signal
DETECTION
CONDITION
• Low voltage is detected at the voltage monitor of solenoid valve monitor, or the motor monitor
POSSIBLE
CAUSE
• B1483
 Malfunction of brake switch
• B1484
 Open circuit in harness between DSC HU/CM terminal I and brake switch
• B1486
 Short to ground circuit in harness between DSC HU/CM terminal I and brake switch
• Short to power circuit in harness between DSC HU/CM terminal I and brake switch