OE Drive Cycles (Testbook)

Drive Cycles

TestBook/T4 drive cycles are as follows:

Drive cycle A

1 Switch on the ignition for 30 seconds.
2 Ensure engine coolant temperature is less than 60°C.
3 Start the engine and allow to idle for 2 minutes.
4 Connect TestBook/T4 and check for fault codes.

Drive cycle B

1 Switch ignition on for 30 seconds.
2 Ensure engine coolant temperature is less than 60°C.
3 Start the engine and allow to idle for 2 minutes.
4 Perform 2 light accelerations, i.e. 0 to 35 mph with light pedal pressure.
5 Perform 2 medium i.e. 0 to 45 mph with moderate pedal pressure.
6 Perform 2 hard accelerations i.e. 0 to 55 mph with heavy pedal pressure.
7 Allow engine to idle for 2 minutes.
8 Connect TestBook/T4 and with the engine still running check for fault codes.

Drive cycle C

1 Switch ignition on for 30 seconds.
2 Ensure engine coolant temperature is less than 60°C.
3 Start the engine and allow to idle for 2 minutes.
4 Perform 2 light accelerations, i.e. 0 to 35 mph with light pedal pressure.
5 Perform 2 medium accelerations, i.e. 0 to 45 mph with moderate pedal pressure.
6 Perform 2 hard accelerations i.e. 0 to 55 mph with heavy pedal pressure.
7 Cruise at 60 mph for 8 minutes.
8 Cruise at 50 mph for 3 minutes.
9 Allow engine to idle for 3 minutes.
10 Connect TestBook/T4 and, with the engine still running, check for fault codes.

the following areas have an associated readiness test which must be flagged as complete, before a problem resolution can be verified:

^ Catalytic converter fault.
^ Evaporative loss system fault.
^ HO2S fault.
^ HO2S heater fault.

When carrying out drive cycle C to determine a fault in any of the above areas select the readiness test icon to verify that the test has been flagged as complete.

Drive cycle D

1 Switch ignition on for 30 seconds.
2 Ensure engine coolant temperature is less than 35°C.
3 Start the engine and allow to idle for 2 minutes.
4 Perform 2 light accelerations, i.e. 0 to 35 mph with light pedal pressure.
5 Perform 2 medium accelerations, i.e. 0 to 45 mph with moderate pedal pressure.
6 Perform 2 hard accelerations, i.e. 0 to 55 mph with heavy pedal pressure.
7 Cruise at 60 mph for 5 minutes.
8 Cruise at 50 mph for 5 minutes.
9 Cruise at 35 mph for 5 minutes.
10 Allow engine to idle for 2 minutes.
11 Connect TestBook/T4 and check for fault codes.

Drive cycle E

1 Ensure fuel tank is at least a quarter full.
2 Carry out drive cycle A.
3 Switch off ignition.
4 Leave vehicle undisturbed for 20 minutes.
5 Switch on ignition.
6 Connect TestBook/T4 and check for fault codes.