Mazda 2003 MPV User Manual download pdf (Page 46)

MA47

Mazda ReferenceMA000

Single Drive Mode (PCM Adaptive Memory Production, EGR

System, HO2S Heater, HO2S, TWC, and EVAP System Verification)

z To perform this drive mode:

1. Start the engine and warm completely.

2. Clear DTCs from PCM memory.

3. Verify the following conditions and correct if necessary:

– All accessory loads (A/C, headlights, blower fan, rear window defroster) are off.

– Initial ignition timing and idle speed are within specifications.

– TEN and GND pins of DLC are not connected.

4. Verify that the following PIDs are within specifications:

– BARO: 21.2 inHg (72.2 kPa, 541 mmHg) or higher

– IAT: 41°F to 95°F (5°C to 35°C)

– FTL: 15% to 85%

– VPWR: 10.9V to 14.6V

All PIDs must be within specifications from Step 5 to Step 6.

5. With the vehicle stopped, race the engine at RPM indicated, then drive as shown in

Figure MA000-41. Driving conditions before driving at constant speed are not specified. If

possible, monitor RPM PID and FAN2 PID (with A/C), FAN1 PID (without A/C) for cooling

fan status during this procedure.

Figure MA000-41

Table MA000-5 (part 1 of 2)

Step Time

Engine Speed Vehicle Speed

Condition

Step RPM Step MPH(KPH)

T1 More than 15 seconds N1 1800 to 2200 — 0 —

T2 More than 15 seconds N2 3000 to 3400 — 0 —

T3 More than 20 seconds N3 Idle — 0

Idle engine after cooling

fan stops

T4 More than 5 hours — 0 — 0 Keep key off

TIME

ENGINE SPEED

Key

Off

Start

Engine

System Repair Verification Drive Mode (EGR, HO2S Heater, HO2S, TWC, and EVAP)

Stop

Engine

VEHICLE SPEED

Start

Engine

Idle

Start

Engine

Stop

Engine

T10

(Repeat

10 times)

T11

Note: See table below for segment times and speeds.

Vehicle Stopped Vehicle Moving

1 2 ... 41 42 43 44 45 46 47 48 49

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Mazda 2003 MPV User Manual Page 46

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