Mazda CX-7 2007 Workshop Manual page 1116

DTC B1260, B1261, B1274, B1275, B1282, B1283 (MULTIPLE DTCS INDICATED)
DTC B1260,
B1261, B1282,
Climate control unit (+5 V power supply) system
B1283, B1274,
B1275
• Open or short circuit in wiring harnesses between climate control unit and solar radiation sensor, air mix
POSSIBLE
CAUSE actuator, or airflow mode actuator
Diagnostic Procedure
STEP
• Disconnect the climate control unit connector and
1
the airflow mode actuator connector.
• Is there an open circuit in the wiring harness
between climate control unit terminal J and airflow
mode actuator terminal B?
• Is there a short circuit to ground in the wiring
2
harness between climate control unit terminal J
and airflow mode actuator terminal B?
• Is there a short circuit to ground in the wiring
3
harness between climate control unit terminal J
and air mix actuator terminal A?
• Is there a short circuit to ground in the wiring
4
harness between climate control unit terminal J
and solar radiation sensor terminal A?
CLIMATE CONTROL UNIT CONNECTOR
W U S Q O M K
L
X V T R P N
End Of Sie
07-02–6
ON-BOARD DIAGNOSTIC
INSPECTION
AIR MIX ACTUATOR
CONNECTOR
A
I G E C
F
H D *
J F B
Yes Repair the wiring harness.
No Go to the next step.
Yes Repair the wiring harness.
No Go to the next step.
Yes Repair the wiring harness.
No Go to the next step.
Yes Repair the wiring harness.
No The system is normal at present. (Clear the malfunction
from the memory.)
AIRFLOW MODE
ACTUATOR CONNECTOR
D C B A D
F
*
id070200800700
ACTION
SOLAR RADIATION
SENSOR CONNECTOR
C B A
B A