Sending Intermittent Monitoring System Test Results; Dtc Detection Logic And Conditions [13B-Msp] - Mazda RX-8 2009 Service Highlights

Sending Intermittent Monitoring System Test Results

The items supported by the sending intermittent monitoring system are shown below.
OBD monitor ID
Test ID
2009MY 2008MY
01 80
01 81
01 82
01 83
02 03
02 04
02 05
02 N/A 80
21 80
3A 80
3B 80
1
80
3C*
3D 80
71 80
71 81
A2 0B
A2 0C
A3 0B
A3 0C
*1
: California emission regulation applicable model
End Of Sie

DTC DETECTION LOGIC AND CONDITIONS [13B-MSP]

The detection condition of the following DTC has been changed from 2008MY.
B1342 PCM malfunction
Malfunction in the PCM internal circuit.
P0030 A/F sensor heater control circuit problem
The PCM monitors the A/F sensor impedance when under the A/F sensor heater control for 190 s. If the
impedance is more than 44 ohms while PCM turns A/F sensor heater on, the PCM determines that there is a
A/F sensor heater control circuit problem.
P0031 A/F sensor heater control circuit low input
The input voltage to the A/F sensor heater drive terminal in the PCM is at the set value or less for 1 s or more
even though the A/F sensor heater is duty-controlled at under 90 % by the PCM.
P0032 A/F sensor heater control circuit high input
The input voltage to the A/F sensor heater drive terminal in the PCM is at the set value or more for 1 s or more
even though the A/F sensor heater is duty-controlled at 10 % or more by the PCM.
P0037 HO2S heater control circuit low input
The input voltage to the HO2S heater drive terminal in the PCM is at the set value or less for 0.5 s or more
even though the HO2S heater is duty-controlled at under 90 % by the PCM.
P0038 HO2S heater control circuit high input
The input voltage to the HO2S heater drive terminal in the PCM is at the set value or more for 0.5 s or more
even though the HO2S heater is duty-controlled at 10% or more by the PCM.
P0103 MAF sensor circuit high input
The PCM monitors the input voltage from the MAF sensor when the engine is running. If the input voltage is
more than 5.0 V, the PCM determines that the MAF sensor circuit input voltage is high.
P0107 BARO sensor circuit low input
The PCM monitors the input voltage from the BARO sensor when the engine is running. If the input voltage is
less than 2.09 V, the PCM determines that the BARO sensor circuit input voltage is low.
01-02–10
ON-BOARD DIAGNOSTIC [13B-MSP]
Description
Response lean to rich
Response rich to lean
Response lean to rich delayed
Response rich to lean delayed
Low sensor voltage for switch time calculation
High sensor voltage for switch time calculation
Rich to lean sensor switching time
Response timeout
Rear to front switching ratio
Large leak check
Small leak check
Very small leak check
Purge flow monitor
Secondary air functional check
Secondary air flow rate check
Exponentially weighted moving average misfire counts
for last 10 driving cycles (front rotor)
Misfire counts for last/current driving cycles (front
rotor)
Exponentially weighted moving average misfire counts
for last 10 driving cycles (rear rotor)
Misfire counts for last/current driving cycles (rear
rotor)
Related Scaling
system ID
20
20
A/F sensor
10
10
0A
0A
HO2S
10
10
Catalyst 20
0D
0D
EVAP system
05
0D
10
AIR system
86
24
24
Misfire
24
24
id0102g1100300
Unit
Ratio
Ratio
Time
Time
Voltage
Voltage
Time
Time
Ratio
Current
Current
Raw
value
Current
Time
Raw
value
Counts
Counts
Counts
Counts