Mazda 2002 6 Workshop Manual page 972

Checking Order
Note
• When inspecting more than two DTCs, perform the inspection by following the priority order of inspection
indicated in the chart below.
Priority order IG switch
of inspection position
1
ON
2
3 LOCK
Inspection of Diagnostic Trouble Codes
DTC 01 Buckle switch on/off signal
Diagnostic procedure
STEP INSPECTION
1 Unfasten driver-side seat belt.
(Buckle switch on.)
2 Fasten driver-side seat belt. (Buckle
switch off.)
WARNING AND INDICATOR SYSTEM
22
01, 04, 08, 12, 13, 14, 16, 18, 23, 25, 26
31
INDICATION
Check code
ACTION
Go to next step.
Measure voltage at instrument cluster terminal 2G.
Is voltage 0 V?
• If as specified, replace instrument cluster.
• If not as specified, inspect following parts.
— Buckle switch
— Wiring harness (Buckle switch—instrument
cluster)
Measure voltage at instrument cluster terminal 2G.
Is voltage B+?
• If as specified, replace instrument cluster.
• If not as specified, inspect following parts.
— Buckle switch
— Wiring harness (Buckle switch—instrument
cluster)
Input signal to instrument cluster is okay.
T
T–77