Fault / Symptom Test Sequence

Most power hydraulic diagnostic testing is accomplished using Jaguar hydraulic test equipment. Test procedures will diagnose a hydraulic or mechanical fault. If electrical diagnosis is required, the test will refer to JDS diagnosis. JDS is Jaguar's exclusive diagnostic tester, generally available only at authorized Jaguar dealers.


Inoperative Power Hydraulics
TEST 1, then remaining tests (except TEST 4) as required.

Inoperative Ride Leveling; Brake Boost OK (88-89 model years)
TEST 2, then as directed.

Ride Leveling Strut Knock
TEST 4, then as directed.

Lack Of Ride Leveling Strut Dampening
TEST 4, then as directed.

VCM Low Pressure Warning Activated (88-89 model years)
TEST 5, then as directed.

Inoperative Brake Boost; Ride Leveling OK (88-89 model years)
TEST 5.