Mazda 2004 RX-8, Особенности сервиса

Страница: 29 / 540

ON-BOARD DIAGNOSTIC
01–02–14
P2196 Front HO2S signal stuck rich
•
The PCM monitors the front HO2S output current when the following conditions are met. If the average output
current is less than 0.8 A for 25 s, the PCM determines that the front HO2S signal remains rich.
MONITORING CONDITION
— ECT: more than 70
°
C {158
°
F}
— Engine speed: 1,000—3,200 rpm
— MAF amount: 6—80 g/s {0.80—10.58 lb/min}
— Target A/F feedback system status: feedback control
— Input voltage from the rear HO2S: less than 0.2 V
P2257 AIR pump relay control circuit low
•
The PCM monitors the AIR pump relay control voltage when the AIR pump is not operating. If the control
voltage is less than 5.8 V, the PCM determines that the AIR pump relay control circuit voltage is low.
P2258 AIR pump relay control circuit high
•
The PCM monitors the AIR pump relay control voltage when the AIR pump is operating. If the control voltage is
more than 11.5 V, the PCM determines that the AIR pump relay control circuit voltage is high.
P2259 AIR solenoid valve control circuit low
•
The PCM monitors the AIR solenoid valve control voltage when the AIR pump is not operating. If the control
voltage is less than 5.8 V, the PCM determines that the AIR solenoid valve control circuit voltage is low.
P2260 AIR solenoid valve control circuit high
•
The PCM monitors the AIR solenoid valve control voltage when the AIR pump is operating. If the control
voltage is more than 11.5 V, the PCM determines that the AIR solenoid valve control circuit voltage is high.
P2270 Rear HO2S signal stuck lean
•
The PCM monitors the input voltage from the rear HO2S when the following conditions are met. If the input
voltage is more than 0.9 V for 40 s, the PCM determines that the rear HO2S signal remains lean.
MONITORING CONDITION
— ECT: more than 70
°
C {158
°
F}
— Engine speed: more than 1,500 rpm
— MAF amount: more than 10 g/s {1.32 lb/min}
— Short term fuel trim: -20—20 %
— Long term fuel trim: -15—15 %
— Target A/F feedback system status: feedback control
P2271 Rear HO2S signal stuck rich
•
The PCM monitors the input voltage from the rear HO2S when the following conditions are met. If the input
voltage is less than 0.4 V for 40 s, the PCM determines that the rear HO2S signal remains rich.
MONITORING CONDITION
— ECT: more than 70
°
C {158
°
F}
— Engine speed: more than 1,500 rpm
— MAF amount: more than 10 g/s {1.32 lb/min}
— Short term fuel trim: -20—20 %
— Long term fuel trim: -15—15 %
— Target A/F feedback system status: feedback control
P2401 EVAP system leak detection pump control circuit low
•
The PCM monitors the pump load current (EVAP line pressure) when the evaporative leak monitor is operating.
If the pump load current is less than the specification, the PCM determines that the EVAP system leak
detection pump control circuit voltage is low.
P2402 EVAP system leak detection pump control circuit high
•
The PCM monitors the pump load current (EVAP line pressure) when the evaporative leak monitor is operating.
If the pump load current is more than the specification, the PCM determines that the EVAP system leak
detection pump control circuit voltage is high.
P2404 EVAP system leak detection pump sense circuit range/performance problem
•
The PCM monitors the pump load current (EVAP line pressure) when the evaporative leak monitor is operating.
If the time in which the pump load current reaches the reference current value is not within the specification
after the PCM obtains the reference current value, the PCM determines that there is an EVAP system leak
detection pump sense circuit range/performance problem.
P2405 EVAP system leak detection pump sense circuit low
•
The PCM monitors the pump load current (EVAP line pressure) when the evaporative leak monitor is operating.
If the pump load current is less than the specification while the PCM obtains the reference current value, the
PCM determines that the EVAP system leak detection pump sense circuit voltage is low.
P2406 EVAP system leak detection pump sense circuit high
•
The PCM monitors the pump load current (EVAP line pressure) when the evaporative leak monitor is operating.
If the pump load current is more than the specification while the PCM obtains the reference current value, the
PCM determines that the EVAP system leak detection pump sense circuit voltage is high.