Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2004 Mazda RX-8 1.3 3FACTORY OEM SERVICE PROCEDURE
Using the WDS or Equivalent
NOTE:
- PIDs for the following parts are not available on this model. Go to the appropriate part inspection page.
- Main relay (See RELAY INSPECTION .)
- Connect the WDS or equivalent to the DLC-2.
- Turn the ignition switch to ON position.
- Measure the PID value.
- If PID value is not within the specification, follow the instructions in Action column.
NOTE:- The PID/DATA MONITOR function monitors the calculated value of the input/output signals in the PCM. Therefore, an output device malfunction is not directly indicated as a malfunction of the monitored value for the output device. If a monitored value of an output device is out of specification, inspect the monitored value of the input device related to the output control.
- For input/output signals except those of the monitoring items, use a voltmeter to measure the PCM terminal voltage.
- The simulation items that are used in the ENGINE CONTROL SYSTEM OPERATION INSPECTION are as follows.
- ACCS, AIP RLY, ALTF, APV, ARPMDES, DEI, ETC_DSD, EVAPCP, FAN1, FAN2, FP, FPRR, FUELPW, GENVDSD, HTR11, HTR12, IASV, MOP POS, PACNTV, PREDELI, SSV, test
PID/DATA MONITOR
| Monitor item (Definition) | Unit/Condition | Condition/Specification (Reference) | Inspection item(s) | PCM terminal | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ACCS (A/C relay) | On/Off |
|
|
5AA | |||||||||
| ACSW (A/C switch) | On/Off |
|
|
4W | |||||||||
| AIP RLY (AIR pump relay) | On/Off |
|
|
4O | |||||||||
| ALTF (Generator field coil control duty value) | % |
|
|
2I | |||||||||
| ALTT V (Generator output voltage) | V |
|
Generator. | 2T | |||||||||
| APP (Accelerator pedal position) | % |
|
|
- | |||||||||
| APP1 (Accelerator pedal position) | % |
|
APP sensor | 5F | |||||||||
| V |
|
||||||||||||
| APP2 (Accelerator pedal position) | % |
|
APP sensor | 5C | |||||||||
| V |
|
||||||||||||
| APV (APV motor) | Opening/Closing |
|
|
3G, 3J | |||||||||
| APV_POS (APV position sensor) | V |
|
|
3B | |||||||||
| ARPMDES (Target engine speed) | RPM | MT
AT
|
|
- | |||||||||
| B+ (Battery positive voltage) | V |
|
|
5J | |||||||||
| BARO (Barometric pressure) | kPa, Bar, psi |
|
|
5S | |||||||||
| V |
|
||||||||||||
| BOO (Brake switch) | On/Off |
|
|
4P | |||||||||
| CATT11_DSD (Estimated catalytic converter temperature) | °C | °F |
|
|
- | ||||||||
| CHRGLP (Generator warning light) | On/Off |
|
|
- | |||||||||
| COLP (Refrigerant pressure switch (middle)) | ON/OFF |
|
4Z | ||||||||||
| CPP (Clutch pedal position) | On/Off |
|
|
4F | |||||||||
| CPP/PNP (Shift lever position) | Drive/Neutral |
|
|
2O | |||||||||
| DEI (VDI solenoid valve) | On/Off |
|
|
1W | |||||||||
| DTC_CNT (Number of DTC detected) | - | - | - | - | |||||||||
| ECT (Engine coolant temperature) | °C | °F |
|
|
2K | ||||||||
| V |
|
||||||||||||
| ECT_DES (Estimated ECT) | °C | °F |
|
|
- | ||||||||
| EQ_RAT11 (Front oxygen sensor) | - |
|
|
2B, 2C | |||||||||
| ETC_ACT (Electronic throttle control actual) | ° |
|
|
- | |||||||||
| ETC_DSD (Electronic throttle control desired) | ° |
|
|
- | |||||||||
| % |
|
||||||||||||
| EVAPCP (Purge solenoid valve duty value) | % |
|
|
2P | |||||||||
| FAN1 (Cooling fan control) | On/Off |
|
|
5X | |||||||||
| FAN2 (Cooling fan control) | On/Off |
|
|
5AD | |||||||||
| FLI (Fuel level) | % |
|
|
- | |||||||||
| FP (Fuel pump relay) | On/Off |
|
|
5P | |||||||||
| FPRR (Fuel pump speed control relay) | On/Off |
|
|
4M | |||||||||
| FUELPW (Fuel injector duration) | ms |
|
|
2J, 2M | |||||||||
| FUELSYS (Fuel system status) | OL/CL/OL Drive/OL Fault/CL Fault |
|
|
- | |||||||||
| GENVDSD (Generator voltage desired) | V |
|
|
- | |||||||||
| HTR11 (Front HO2S heater) | On/Off |
|
|
1V | |||||||||
| HTR12 (Rear HO2S heater) | On/Off |
|
|
2A | |||||||||
| IAC (Idle air control) | % |
|
|
1B, 1C | |||||||||
| IASV (VFAD solenoid valve) | On/Off |
|
|
5Z | |||||||||
| IAT (Intake air temperature) | °C | °F |
|
|
5K | ||||||||
| V |
|
||||||||||||
| INGEAR (In gear) | On/Off | MT
AT
|
|
- | |||||||||
| IVS (CTP condition) | Idle/Off Idle |
|
|
- | |||||||||
| KNOCKR (Knocking retard) | ° |
|
|
1T | |||||||||
| LDP_MON (EVAP System leak detection pump monitoring current) | mA |
|
4D | ||||||||||
| LDP_REF(EVAP System leak detection pump reference current) | mA |
|
4D | ||||||||||
| LDF_IDL (EVAP System leak detection pump idle current) | mA |
|
4D | ||||||||||
| LDP_SLDV (EVAP Control system small leak detection value) | mA |
|
4D | ||||||||||
| LDP_VSLDV (EVAP Control system very small leak detection value) | mA |
|
4D | ||||||||||
| LDP_EVAPCP (EVAP Control system incorrect purge flow detection value) | mA |
|
4D | ||||||||||
| LOAD (Engine load) | % | MT
AT
|
|
- | |||||||||
| LONGFT1 (long term fuel trim) | % |
|
|
- | |||||||||
| MAF (Mass airflow) | g/s | MT
AT
|
|
5N | |||||||||
| V | MT
AT
|
||||||||||||
| MIL (Malfunction indicator lamp) | On/Off |
|
|
- | |||||||||
| MIL_DIS (Travelled distance since the MIL illuminated) | Indicates travelled distance since the MIL illuminated | ||||||||||||
| MOP_POS (Metering oil pump) | - |
|
|
2V, 2W, 2Y, 2AB | |||||||||
| MOP_SW (Metering oil pump switch) | On/Off |
|
|
2N | |||||||||
| O2S11 (Front oxygen sensor) | mA |
|
|
2B | |||||||||
| O2S12 (Rear oxygen sensor) | V |
|
|
2Q | |||||||||
| PSCNTV (AIR solenoid valve control) | On/Off |
|
|
1O | |||||||||
| PCM_T (PCM temperature sensor) | V |
|
|
- | |||||||||
| RO2FT1 (Rear oxygen sensor fuel trim) | - |
|
|
- | |||||||||
| RPM (Engine speed) | RPM |
|
|
- | |||||||||
| SC_SET (Cruise set indicator light) | On/Off |
|
|
- | |||||||||
| SCCS (Cruise control switch) | V |
|
|
5V | |||||||||
| SELTESTDTC (DTC) | Indicates Number of the DTCs detected by the KOEO/KOER self-test function | ||||||||||||
| SHRTFT1 (Short term fuel trim (front)) | % |
|
|
- | |||||||||
| SHRTFT12 (Short term fuel trim (rear)) | % |
|
|
- | |||||||||
| SPARK-L (Ignition timing) | °(BTDC) |
|
|
2AA | |||||||||
| SPARK-T (Ignition timing) | °(BTDC) |
|
|
2AD | |||||||||
| SSV (SSV solenoid valve) | On/Off |
|
|
1L | |||||||||
| test | On/Off |
|
- | - | |||||||||
| TIRE SIZE (Tire revolution per mile) | rev/mile |
|
|||||||||||
| TP (TP) | V |
|
|
- | |||||||||
| TP_REL (Relative TP) | % |
|
|
- | |||||||||
| TP1 (TP sensor 1) | % |
|
|
1J | |||||||||
| V |
|
||||||||||||
| TP2 (TP sensor 2) | % |
|
|
1M | |||||||||
| V |
|
||||||||||||
| TPCT (TP sensor voltage at CTP) | V |
|
|
1J, 1M | |||||||||
| VSS (Vehicle speed) | km/h | MPH |
|
|
- | ||||||||
|
|||||||||||||
Factory Service Tools
Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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