Mazda Protege 5. Manual - part 46

 

  Index      Mazda     Mazda Protege 5 - service repair manual 2002 year

 

Search            

 

 

 

 

 

 

 

 

 

Content   ..  44  45  46  47   ..

 

 

Mazda Protege 5. Manual - part 46

 

 

ON-BOARD DIAGNOSTIC [ENGINE CONTROL SYSTEM (FS)]

01–02B–4

CONTROL SYSTEM DEVICE AND CONTROL RELATIONSHIP CHART [FS]

A3U010218881W02

Engine Control System

Component

Input

Brake switch

x

x

Refrigerant pressure switch, A/C 
switch, blower fan switch and A/C 
amplifier

x

x

x

x

x

PSP switch

x

x

x

x

DLC in engine compartment (TEN)

x

x

x

x

x

Neutral switch (MTX)

x

x

x

x

Clutch switch (MTX)

x

x

x

x

TR switch (ATX)

x

x

x

x

CKP  sensor

x

x

x

x

x

x

x

x

x

x

x

x

x

x

CMP sensor

x

x

x

VSS

x

x

x

x

x

MAF sensor

x

x

x

x

x

x

x

ECT  sensor

x

x

x

x

x

x

x

x

x

x

x

x

IAT  sensor

x

x

x

x

x

x

x

x

TP  sensor

x

x

x

x

x

x

x

x

x

x

x

EGR boost sensor

x

x

x

x

Battery positive voltage

x

x

x

x

x

Generator

x

x

x

HO2S (front)

x

x

HO2S (rear)

Output

IAC valve

x

A/C relay

x

Cooling fan relay

x

Condenser fan relay

x

Fuel pump relay

x

PRC solenoid valve

x

Purge solenoid valve

x

VICS solenoid valve

x

VTCS solenoid valve

x

EGR valve

x

HO2S heater

x

x

Ignition coils

x

Fuel injectors

x

Generator (field coil)

x

Generator warning light

x

1712-1U-01G(01-02B).fm  4 ページ  2001年6月29日 金曜日 午後3時24分

ON-BOARD DIAGNOSTIC [ENGINE CONTROL SYSTEM (FS)]

01–02B–5

01–02B

Monitoring System

End Of Sie

Y3U102WBC

1712-1U-01G(01-02B).fm  5 ページ  2001年6月29日 金曜日 午後3時24分

ON-BOARD DIAGNOSTIC [ENGINE CONTROL SYSTEM (FS)]

01–02B–6

FOREWORD [FS]

A3U010218881W03

When the customer reports a vehicle malfunction, check the malfunction indicator light (MIL) indication and 
diagnostic trouble code (DTC), then diagnose the malfunction according to following flowchart.
— If the DTC exists, diagnose the applicable DTC inspection. (See 01–02B–15 DTC TABLE [FS].)
— If the DTC does not exist and the MIL does not illuminate or flash, diagnose the applicable symptom 

troubleshooting. (See 01–03B–7 SYMPTOM DIAGNOSTIC INDEX [FS].)

* : Malfunction Indicator Light (MIL), Generator Warning Light, Security Light 

End Of Sie

OBD-II PENDING TROUBLE CODES [FS]

A3U010218881W04

The following functions are generic functions.

These appear when a problem is detected in a monitored system. The MIL is illuminated when a problem is 
detected in two consecutive drive cycles. The code for a failed system is stored in the PCM memory in the first 
drive cycle. This code is called the pending code. If the problem is not found in the second drive cycle, the PCM 
judges that the system returned to normal or the problem was mistakenly detected, and deletes the pending 
code. If the problem is found in the second drive cycle too, the PCM judges that the system has failed, deletes 
the pending code, illuminates the MIL and store the DTC.

End Of Sie

OBD-II FREEZE FRAME DATA [FS]

A3U010218881W05

This is the technical data which indicates the engine’s condition at the time of the first malfunction. This data 
will remain in the memory even if another emission-related DTC is stored, with the exception of the Misfire or 
Fuel System DTCs. Once freeze frame data for the Misfire or Fuel System DTC is stored, it will overwrite any 
previous data and the freeze frame will not be overwritten again.

End Of Sie

OBD-II ON-BOARD SYSTEM READINESS TEST [FS]

A3U010218881W06

This shows OBD-II systems operating status. If any monitor function is incomplete, WDS or equivalent will 
identify which monitor function has not been completed. Misfires, Fuel System and Comprehensive 
Components (CCM) are continuous monitoring-type functions. The catalyst, EGR system, evaporation system 
and oxygen sensor will be monitored under drive cycles. The OBD-II diagnostic system is initialized by 
performing the DTC cancellation procedure or disconnecting the negative battery cable.

End Of Sie

OBD-II DIAGNOSTIC MONITORING TEST RESULTS [FS]

A3U010218881W07

These results from the intermittent monitor system’s technical data, which are used to determine whether the 
system is normal or not. They also display the system’s thresholds and diagnostic results. The intermittent 
monitor system monitors the oxygen sensor, evaporative purge system, catalyst and the EGR system.

End Of Sie

YMU102WBX

1712-1U-01G(01-02B).fm  6 ページ  2001年6月29日 金曜日 午後3時24分

ON-BOARD DIAGNOSTIC [ENGINE CONTROL SYSTEM (FS)]

01–02B–7

01–02B

OBD-II READ/CLEAR DIAGNOSTIC TEST RESULTS [FS]

A3U010218881W08

The following are generic functions.

This retrieves all stored DTCs in the PCM and clears the DTC, Freeze Frame Data, On-Board Readiness Test 
Results, Diagnostic Monitoring Test Results and Pending Trouble Codes.

End Of Sie

OBD-II PARAMETER IDENTIFICATION (PID) ACCESS [FS]

A3U010218881W09

The PID mode allows access to certain data values, analog and digital inputs and outputs, calculated values 
and system status information. Since PID values for output devices are PCM internal data values, inspect each 
device to identify which output devices are malfunctioning.

End Of Sie

ON-BOARD DIAGNOSTIC TEST [FS]

A3U010218881W10

DTCs Retrieving Procedure

1. Perform the necessary vehicle preparation and visual inspection.
2. Connect WDS or equivalent to the vehicle DLC-2 

16-pin connector located on the left side of the 
steering column.

3. Retrieve DTC using WDS or equivalent.

Pending Trouble Code Access Procedure

1. Perform the necessary vehicle preparation and visual inspection.
2. Connect WDS or equivalent to the vehicle DLC-2 

16-pin connector located on the left side of the 
steering column.

3. Retrieve pending trouble code using WDS or 

equivalent.

Z3U0102W001

Z3U0102W001

1712-1U-01G(01-02B).fm  7 ページ  2001年6月29日 金曜日 午後3時24分

 

 

 

 

 

 

 

Content   ..  44  45  46  47   ..