D
Group 20
Step 3: VCADS Pro Tests
The results of the following tests using the VCADS Pro
tool may indicate which system or component is a possible
cause of the symptom. These tests can also eliminate
components or systems with no faults or malfunctions.
Action: Refer to:
Check sensor values.
•
“Sensor Values Check, (Engine
Running)”
•
“Sensor Values Check, (Engine Not
Running)”
Check fuel quantity. Fuel Consumption, Check
Check fuel supply pressure at low and high engine speeds. Fuel Supply Pressure, Check
Check EGR function. EGR Function, test
Check start and warm-hold function. Warm-Hold Function, Test
Check cylinder balancing. Cylinder balancing, Check
Check cylinder compression. Cylinder Compression, Test
Check engine brake function. Engine Brake Function, Check
“Step 4: Checks” page 70 “General Information” page 65
69
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