Mazda 626 - TNS Relay On;Off Signal

WARNING AND INDICATOR SYSTEM
STEP INSPECTION INDICATION
ACTION
2
Turn rear window defroster switch
on.
r r
i_ i 1 1
Input signal to instrument cluster is okay.
C i n
Measure voltage at instrument cluster terminal 3R.
Is voltage 0 V?
• If as specified, replace instrument cluster.
• If not as specified, inspect following parts.
— Rear window defroster switch
— Wiring harness (Instrument cluster—climate
control unit)
DTC 08 TNS relay on/off signal
INSTRUM ENT CLUSTER CONNECTOR
1Q 10
1M 1K
11 1G
1E
1C
1A
1R 1P 1N
1L 1J
1H 1F 1D 1B
HARNESS SIDE CONNECTOR
(VIEW FROM HARNESS SI DE)
Diagnostic procedure
STEP INSPECTION INDICATION
ACTION
1 Turn headlight switch to TNS
position. (TNS relay on.)
C i n
Go to next step.
r r
L i 1 1
Measure voltage at instrument cluster terminal 1E.
Is voltage B+?
• If as specified, replace instrument cluster.
• If not as specified, inspect following parts.
— TNS relay
— Wiring harness (Battery—TNS
relay—instrument cluster)
2
Turn headlight switch off. (TNS
relay off.)
C i n
Measure voltage at instrument cluster terminal 1E.
Is voltage 0 V?
• If as specified, replace instrument cluster.
• If not as specified, inspect following parts.
— TNS relay
— Wiring harness (TNS relay—instrument cluster)
r r
L i 1 «
Input signal to instrument cluster is okay.
T-36