Mazda 6 2002, Workshop Manual

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K–56
ON-BOARD DIAGNOSTIC
Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA HAS BEEN
RECORDED
•
Has FREEZE FRAME PID DATA been
recorded?
Yes Go to next step.
No Record FREEZE FRAME PID DATA on repair order, then
go to next step.
2 VERIFY RELATED SERVICE INFORMATION
AVAILABILITY
•
Check for related Service Bulletins availability.
•
Is any related repair Information available?
Yes Perform repair or diagnosis according to available repair
Information.
•
If vehicle is not repaired, go to next step.
No Go to next step.
3 INSPECT VSS CONNECTOR FOR POOR
CONNECTION
•
Turn ignition key to OFF.
•
Disconnect VSS connector.
•
Check for poor connection (damaged/pulled-
out terminals, corrosion, etc.).
•
Is connection okay?
Yes Go to next step.
No Repair or replace pin or connector, then go to Step 10.
4 INSPECT VSS POWER CIRCUIT FOR OPEN
CIRCUIT
•
Verify that VSS connector is disconnected.
•
Turn ignition key to ON (Engine OFF).
•
Check voltage between VSS terminal A
(harness-side) and ground
•
Is voltage reading B+ ?
Yes Go to next step.
No Repair or replace harness, then go to Step 10.
5 INSPECT VSS GROUND CIRCUIT FOR OPEN
•
Turn ignition key to OFF.
•
Verify that VSS connector is disconnected.
•
Check for continuity between VSS terminal C
(harness-side) and ground
•
Is there continuity?
Yes Go to next step.
No Repair or replace harness, then go to Step 10.
DTC P0500 Vehicle speed sensor (VSS) circuit malfunction