Volvo Symptom D12D US02 Service Manual page 87

Group 20
PPID 122 VCB compression brake status
PPID 124 Exhaust pressure governor
SID 1–6 Unit injectors
SID 21 Engine position, cam
Action:
Check for active or inactive fault codes related to symptoms.
Check inactive codes with high number of occurrences.
"Step 2: Visual Inspection (System Checks)" page 83
"Engine Speed Surges Under Load or in Normal
Operating Range" page 73
Step 2: Visual Inspection (System Checks)
Action:
Check that there is sufficient fuel in the tank(s).
"Step 3: VCADS Pro Tests" page 83
"Engine Speed Surges Under Load or in Normal
Operating Range" page 73
Step 3: VCADS Pro Tests
Action:
Check sensor values.
Check fuel supply pressure at low and high engine speeds.
Check that individual injectors are functioning properly.
T2020217
C2002640
D
SID 22
SID 254
Refer to:
Instrument cluster or VCADS Pro
VCADS Pro: "Fault Codes, Test Mode"
Refer to:
Refer to:
"Sensor Values Check, (Engine Running)"
Fuel Supply Pressure, Check
Injector Cut-Out, manual
Engine speed, flywheel
Engine ECU
83