Volvo Symptom D12D US02 Service Manual page 59

Group 20
"Sudden Loss of Power" page 49
Step 1: Fault Code Readings
Registered fault codes (whether active or inactive) can
quickly point to faults; however, they also can be a
fault-finding aid for the symptom. Freeze frames of
information for specific fault codes may also be helpful for
finding causes for the symptom.
Fault tracing using relevant service information
should always be carried out for relevant fault codes.
Components/functions of special interest:
Action:
Check for active or inactive fault codes related to symptoms.
Check inactive codes with high occurrences.
"Step 2: Visual Inspection (System Checks)" page 56
C2002639
D
•
MID 128, Engine ECU
PID 94
PID 100
PID 102
PID 108
PID 110
PID 111
PID 175
SID 1-6
SID 146
SID 266
SID 282
PID 103
•
MID 144, Vehicle ECU
SID 230
Refer to:
Instrument cluster or VCADS Pro
VCADS Pro: "Fault Codes, Test Mode"
"Gradual Loss of Power" page 49
Fuel supply pressure
Engine oil pressure
Intake manifold pressure
Atmospheric pressure
Coolant temperature
Coolant level
Engine oil temperature
Unit injectors
EGR valve 1
EGR valve 2 (D12D)
EGR cooler efficiency (D12D)
Turbo Speed (D16D)
Idle validation switch 1
55