Past Malfunction Display Mode; A/C Operation Check Mode - Mazda RX-8 2009 Service Highlights

Past Malfunction Display Mode

! Past occurrence of sensor and other input circuit malfunctions (open/short circuit) are stored and the DTCs
indicated in the table are displayed on the information display. Once a past malfunction has been stored and
after the malfunctioning part has been repaired, the past malfunction will continue to remain in the memory.
Therefore, after repairing, clear the past malfunction from the memory.
! To clear stored past malfunction information, press the climate control unit AUTO switch and the REC/FRESH
switch simultaneously during past malfunction display mode.
DTC Table
Output
No. Malfunction location
pattern
Passenger compartment
07 temperature sensor (past
malfunction)
Evaporator temperature sensor
11
(past malfunction)
Ambient temperature sensor
13
(past malfunction)
15 ECT sensor (past malfunction)
Air mix actuator (potentiometer)
19
(past malfunction)
Airflow mode actuator
22 (potentiometer) (past
malfunction)
Air mix actuator (motor lock)
58
(past malfunction)
Airflow mode actuator (motor
59
lock) (past malfunction)

A/C Operation Check Mode

! The A/C amplifier forces operation of output related moving parts according to the operation check table
regardless of the input, while simultaneously displaying changes on the information display that match the A/C
amplifier control as well as performing automatic illumination of each switch indicator light. Each transition is
verified whether it is as according to the operation check table through visual inspection, listening to operation
sound or placing the hand on the blow-off opening to determine a malfunction.
Step Target part
1 Blower motor
2 Air mix door
3 Airflow mode door
Air intake door
4
A/C compressor
* : Shown on the information display (at the set temperature display) according to each step.
End Of Sie
ON-BOARD DIAGNOSTIC
Detected condition
When an open/short has occurred in the passenger
compartment temperature sensor circuit 1 time or more
in the past
When an open/short has occurred in the evaporator
temperature sensor circuit 1 time or more in the past
When an open/short has occurred in the ambient
temperature sensor circuit 1 time or more in the past
When an open/short has occurred in the ECT sensor
circuit 1 time or more in the past
When an open/short has occurred in the air mix actuator
(potentiometer) circuit 1 time or more in the past
When an open/short has occurred in the airflow mode
actuator (potentiometer) circuit 1 time or more in the past
When motor lock has occurred in the air mix actuator
circuit 1 time or more in the past
When motor lock has occurred in the airflow mode
actuator circuit 1 time or more in the past
Operation condition
→ → →
OFF 1ST 2ND 3RD 4TH 5TH
→ →
0 % 50 %
→ → →
VENT BI-LEVEL HEAT
FRESH ' REC
ON ' OFF
→
→ → →
6TH 7TH
→ 50 %
100 %
→
HEAT/DEF DEFROSTER
Memory
function
X
X
X
X
X
07-02
X
X
X
Monitor display*
1
20.0 (0%)
20.5 (50%)
21.0 (100%)
20.5 (50%)
3
4
07-02–5