ENGINE (DIAGNOSTICS)(H4DO) > Drive Cycle

PROCEDURE

It is necessary to perform the drive cycle listed below if DTC is not found in the Inspection Mode. It is possible to complete diagnosis of the DTC by performing the indicated drive cycle. After the repair for the DTC, perform a necessary drive cycle and make sure the function recovers and the DTC is recorded.

1. PREPARATION FOR DRIVE CYCLE

1. Check that the battery voltage is 12 V or more and fuel remains approx. half [20 — 40 L (5.3 — 10.6 US gal, 4.4 — 8.8 Imp gal)].

2. After performing the diagnostics and Clear Memory Mode, check that no DTC remains.

3. Check the delivery (test) mode connector is disconnected.

NOTE:

• Perform the drive cycle after warming up the engine except when the engine coolant temperature at engine start is specified.

• Perform the drive cycle twice if the DTC in the list is marked with *. After completing the first drive cycle, stop the engine and perform second diagnosis in same condition.

2. DRIVE CYCLE A

DTC

Item

Condition

*P0125

Insufficient Coolant Temperature for Closed Loop Fuel Control

Engine coolant temperature at engine start is less than 20°C (68°F).

P0130

O2 Sensor Circuit (Lean) (Bank 1 Sensor 1)

—

*P0133

O2 Sensor Circuit Slow Response (Bank 1 Sensor 1)

—

*P0171

System Too Lean (Bank 1)

Complete diagnosis with drive cycle B or C as well.

*P0172

System Too Rich (Bank 1)

Complete diagnosis with drive cycle B or C as well.

*P0301

Cylinder 1 Misfire Detected

Complete diagnosis with drive cycle B or C as well.

*P0302

Cylinder 2 Misfire Detected

Complete diagnosis with drive cycle B or C as well.

*P0303

Cylinder 3 Misfire Detected

Complete diagnosis with drive cycle B or C as well.

*P0304

Cylinder 4 Misfire Detected

Complete diagnosis with drive cycle B or C as well.

*P0420

Catalyst System Efficiency Below Threshold (Bank 1)

—

*P0459

Evaporative Emission System Purge Control Valve Circuit High

—

*P0692

Fan 1 Control Circuit High

—

P1137

O2 Sensor Circuit (MID) (Bank 1 Sensor 1)

—

Diagnostic procedure:

1. Drive for 20 minutes or more at a constant speed of 80 km/h (50 MPH) or more.

2. Stop the vehicle and idle for one minute.

3. DRIVE CYCLE B

DTC

Item

Condition

*P0171

System Too Lean (Bank 1)

Complete diagnosis with drive cycle A or C as well.

*P0172

System Too Rich (Bank 1)

Complete diagnosis with drive cycle A or C as well.

*P0301

Cylinder 1 Misfire Detected

Complete diagnosis with drive cycle A or C as well.

*P0302

Cylinder 2 Misfire Detected

Complete diagnosis with drive cycle A or C as well.

*P0303

Cylinder 3 Misfire Detected

Complete diagnosis with drive cycle A or C as well.

*P0304

Cylinder 4 Misfire Detected

Complete diagnosis with drive cycle A or C as well.

Diagnostic procedure:

1. Drive at 10 km/h (6 MPH) or more.

2. Stop the vehicle and idle for ten minutes.

4. DRIVE CYCLE C

DTC

Item

Condition

*P0030

HO2S Heater Control Circuit (Bank 1 Sensor 1)

—

P0134

O2 Sensor Circuit No Activity Detected (Bank 1 Sensor 1)

—

*P0139

O2 Sensor Circuit Slow Response (Bank 1 Sensor 2)

—

*P0171

System Too Lean (Bank 1)

Complete diagnosis with drive cycle A or B as well.

*P0172

System Too Rich (Bank 1)

Complete diagnosis with drive cycle A or B as well.

*P0301

Cylinder 1 Misfire Detected

Complete diagnosis with drive cycle A or B as well.

*P0302

Cylinder 2 Misfire Detected

Complete diagnosis with drive cycle A or B as well.

*P0303

Cylinder 3 Misfire Detected

Complete diagnosis with drive cycle A or B as well.

*P0304

Cylinder 4 Misfire Detected

Complete diagnosis with drive cycle A or B as well.

*P0400

Exhaust Gas Recirculation Flow

—

P1492

EGR Solenoid Valve Signal #1 Circuit Malfunction (Low Input)

—

P1493

EGR Solenoid Valve Signal #1 Circuit Malfunction (High Input)

—

P1494

EGR Solenoid Valve Signal #2 Circuit Malfunction (Low Input)

—

P1495

EGR Solenoid Valve Signal #2 Circuit Malfunction (High Input)

—

P1496

EGR Solenoid Valve Signal #3 Circuit Malfunction (Low Input)

—

P1497

EGR Solenoid Valve Signal #3 Circuit Malfunction (High Input)

—

P1498

EGR Solenoid Valve Signal #4 Circuit Malfunction (Low Input)

—

P1499

EGR Solenoid Valve Signal #4 Circuit Malfunction (High Input)

—

Diagnostic procedure:

Drive according to the drive pattern described below.

(A)

Idle the engine for 10 seconds or more.

(D)

Decelerate with fully closed throttle to 64 km/h (40 MPH) or less.

(G)

Stop the vehicle with throttle fully closed.

(B)

Accelerate to 97 km/h (60 MPH) or more within 20 seconds.

(E)

Drive for 20 seconds or more at 64 km/h (40 MPH) or less.

(H)

Vehicle speed km/h (MPH)

(C)

Drive for 20 seconds or more at 97 km/h (60 MPH) or more.

(F)

Accelerate to 97 km/h (60 MPH) or more within 10 seconds.

(I)

Sec.

5. DRIVE CYCLE G

DTC

Item

Condition

*P0410

Secondary Air Injection System

—

P0414

Secondary Air Injection System Switching Valve “A” Circuit Shorted

—

P1418

Secondary Air Injection System Control “A” Circuit Shorted

—

*P2441

Secondary Air Injection System Switching Valve Stuck Closed (Bank 1)

—

Diagnostic procedure:

1. Disconnect the battery negative terminal, and reconnect after at least 10 seconds have passed.

2. Idle the engine until engine coolant temperature is 80°C (176°F).

3. Stop the engine to decrease the engine coolant temperature down to 40°C (104°F) or less.

NOTE:

Do not let engine coolant temperature drop to 5°C (41°F) or less.

4. Idle the engine until engine coolant temperature is 80°C (176°F).

5. Stop the engine to decrease the engine coolant temperature down to 40°C (104°F) or less.

NOTE:

Do not let engine coolant temperature drop to 5°C (41°F) or less.

6. Idle the engine.