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2012 Land Rover Range Rover (LM) V8-5.0L Copyright ? 2013, ALLDATA 10.52SS Page 1
Vehicle: All Technical Service Bulletins
Diagnostic Procedure
DIAGNOSTIC PROCEDURE
CAUTION:
A Midtronics PSC-550 Vehicle Power Supply must be connected to the vehicle battery during diagnosis.
1. Connect the Midtronics PSC-550 Vehicle Power Supply to the vehicle battery.
2. Connect IDS to the vehicle and begin a new diagnostic session, by entering the correct VIN for the current vehicle.
3. Read and record diagnostic trouble codes.
NOTE:
This procedure must be followed if any of the following codes are present: C1119 62, C1119 09, C1B 1162.
CAUTION:
If the dynamic response reservoir is empty, pump damage is likely to have occurred.
4. Check the dynamic response fluid level.
WARNING:
Whenever working under a vehicle the vehicle must be supported with safety stands.
NOTE:
Global Technical Reference (GTR) lookup sequence is as follows:
GTR Home > NAS > LS Range Rover Sport > Service Information/ 2007 > Workshop Manuals > Bookmark "Body and Paint/501-02
Front End Body Panels" LINK "Engine Undershield (76.10.50)"
5. If the fluid is low perform the following system inspection for leaks:
^ Raise and support the vehicle.
^ Refer to GTR Section 501-02 and remove the engine shield.
^ Remove the radiator access panel. (Figure 1)
2012 Land Rover Range Rover (LM) V8-5.0L Copyright ? 2013, ALLDATA 10.52SS Page 2
^ Remove the right-hand (RH) splash shield. (Figure 2)
^ Inspect the dynamic response system for leaks.
6. If the fluid level is correct, use IDS to perform the following diagnostic response system test:
^ Select 'Special Applications'.
^ Select 'Dynamic Response Hydraulic Control - System Test'.
^ Demand 50 bar (725 psi) of pressure for up to five minutes or until the primary circuit pipes are hot. ([A] in Figure 3)
2012 Land Rover Range Rover (LM) V8-5.0L Copyright ? 2013, ALLDATA 10.52SS Page 3
^ Check pipe temperature under RH wheel arch.
^ If 50 bar (725 psi) cannot be obtained, * refer to GTR Workshop Manual section 204-06 (60.60.23) to replace the faulty Pressure Control
Valve (PCV) in the valve block*.
^ Open DCV1 and verify that system pressure is still 50 bar (725 psi).
^ Hold 50 bar (725 psi) pressure for two minutes.
^ If pressure has dropped by over 5 bar (72.5 psi), confirm in step 7 and replace the affected actuator.
^ Open DCV2 and verify that system pressure is still 50 bar (725 psi).
^ Hold 50 bar (725 psi) pressure for two minutes.
^ If pressure has dropped by over 5 bar (72.5 psi), confirm in step 7. The affected actuator will be replaced.
NOTE:
If the temperature comparison test is not conclusive at this stage, continued diagnosis revealing filter contamination (Condition B Figure 6)
may indicate that the front actuator requires replacement.
7. Confirm which actuator is faulty by observing the follow symptoms:
^ If all four pipes in the front wheel arch area are hot and at a similar temperature the front actuator is faulty.
^ If the pipes in the rear wheel arch are hot, the rear actuator is faulty.
^ If the pressure has dropped, but there is no increase in the actuator pipes and rear pipes temperature ([B] in Figure 3), the valve block is
faulty and requires replacement.
2012 Land Rover Range Rover (LM) V8-5.0L Copyright ? 2013, ALLDATA 10.52SS Page 1
Vehicle: All Technical Service Bulletins
Diagnostic Procedure
DIAGNOSTIC PROCEDURE
CAUTION:
A Midtronics PSC-550 Vehicle Power Supply must be connected to the vehicle battery during diagnosis.
1. Connect the Midtronics PSC-550 Vehicle Power Supply to the vehicle battery.
2. Connect IDS to the vehicle and begin a new diagnostic session, by entering the correct VIN for the current vehicle.
3. Read and record diagnostic trouble codes.
NOTE:
This procedure must be followed if any of the following codes are present: C1119 62, C1119 09, C1B 1162.
CAUTION:
If the dynamic response reservoir is empty, pump damage is likely to have occurred.
4. Check the dynamic response fluid level.
WARNING:
Whenever working under a vehicle the vehicle must be supported with safety stands.
NOTE:
Global Technical Reference (GTR) lookup sequence is as follows:
GTR Home > NAS > LS Range Rover Sport > Service Information/ 2007 > Workshop Manuals > Bookmark "Body and Paint/501-02
Front End Body Panels" LINK "Engine Undershield (76.10.50)"
5. If the fluid is low perform the following system inspection for leaks:
^ Raise and support the vehicle.
^ Refer to GTR Section 501-02 and remove the engine shield.
^ Remove the radiator access panel. (Figure 1)
2012 Land Rover Range Rover (LM) V8-5.0L Copyright ? 2013, ALLDATA 10.52SS Page 2
^ Remove the right-hand (RH) splash shield. (Figure 2)
^ Inspect the dynamic response system for leaks.
6. If the fluid level is correct, use IDS to perform the following diagnostic response system test:
^ Select 'Special Applications'.
^ Select 'Dynamic Response Hydraulic Control - System Test'.
^ Demand 50 bar (725 psi) of pressure for up to five minutes or until the primary circuit pipes are hot. ([A] in Figure 3)
2012 Land Rover Range Rover (LM) V8-5.0L Copyright ? 2013, ALLDATA 10.52SS Page 3
^ Check pipe temperature under RH wheel arch.
^ If 50 bar (725 psi) cannot be obtained, * refer to GTR Workshop Manual section 204-06 (60.60.23) to replace the faulty Pressure Control
Valve (PCV) in the valve block*.
^ Open DCV1 and verify that system pressure is still 50 bar (725 psi).
^ Hold 50 bar (725 psi) pressure for two minutes.
^ If pressure has dropped by over 5 bar (72.5 psi), confirm in step 7 and replace the affected actuator.
^ Open DCV2 and verify that system pressure is still 50 bar (725 psi).
^ Hold 50 bar (725 psi) pressure for two minutes.
^ If pressure has dropped by over 5 bar (72.5 psi), confirm in step 7. The affected actuator will be replaced.
NOTE:
If the temperature comparison test is not conclusive at this stage, continued diagnosis revealing filter contamination (Condition B Figure 6)
may indicate that the front actuator requires replacement.
7. Confirm which actuator is faulty by observing the follow symptoms:
^ If all four pipes in the front wheel arch area are hot and at a similar temperature the front actuator is faulty.
^ If the pipes in the rear wheel arch are hot, the rear actuator is faulty.
^ If the pressure has dropped, but there is no increase in the actuator pipes and rear pipes temperature ([B] in Figure 3), the valve block is
faulty and requires replacement.
