Range Rover P38
EMISSION CONTROL
3
FAULT DIAGNOSIS
Drive cycle C2 (vehicles with advanced EVAPS):
1. Switch ignition on for 30 seconds.
2. Ensure engine coolant temperature is less than
60
°
C (140
°
F).
3. Start the engine and allow to idle for 2 minutes.
4. Perform two light accelerations (0 to 35 mph) (0
to 60 km/h) with light pedal pressure).
5. Perform two medium accelerations (0 to 45 mph)
(0 to 70 km/h) with moderate pedal pressure).
6. Perform two hard accelerations (0 to 55 mph) (0
to 90 km/h) with heavy pedal pressure).
7. Cruise at 60 mph (100 km/h) for 8 minutes.
8. Cruise at 50 mph (80 km/h) for 3 minutes.
9. Allow engine to idle for 3 minutes.
10. Connect Testbook and check for fault codes.
NOTE: 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;
•
HO
2
S sensor fault;
•
HO
2
S sensor heater fault.
When carrying out a drive cycle C to determine a
fault in 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 (95
°
F).
3. Start the engine and allow to idle for 2 minutes.
4. Perform two light accelerations (0 to 35 mph) (0
to 60 km/h) with light pedal pressure).
5. Perform two medium accelerations (0 to 45 mph)
(0 to 70 km/h) with moderate pedal pressure).
6. Perform two hard accelerations (0 to 55 mph) (0
to 90 km/h) with heavy pedal pressure).
7. Cruise at 60 mph (100 km/h) for 5 minutes.
8. Cruise at 50 mph (80 km/h) for 5 minutes.
9. Cruise at 35 mph (60 km/h) for 5 minutes.
10. Allow engine to idle for 2 minutes.
11. Connect Testbook and check for fault codes.
Drive cycle E:
1. Ensure the fuel tank is more than 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 and check for fault codes.
