Volvo Symptom D12D US02 Service Manual page 98

Group 20
Step 1: Fault Code Readings
Active and inactive registered fault codes can point to
faults but also 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 94
Step 2: Visual Inspection (System Checks)
Action:
None required.
"Step 3: VCADS Pro Tests" page 95
94
C2002639
T2020217
D
•
MID 128, Engine ECU
PID 84 Vehicle speed
PID 91 Accelerator pedal
PID 102 Intake manifold pressure
PPID 124 Exhaust pressure governor
PID 175 Engine oil temperature
PPID 122 Compression brake, VCB
SID 146 EGR valve 1
SID 231 SAE J1939 control link
SID 266 EGR valve 2 (D12D)
•
MID 144, Vehicle ECU
PPID 70 Pedal switches supply
PPID 71 Cruise control and engine brake
switches supply
SID 230 Idle validation switch 1
Refer to:
Instrument cluster or VCADS Pro
VCADS Pro:"Fault Codes, Test Mode"
"Poor Engine Brake Performance" page 90
Refer to:
"Poor Engine Brake Performance" page 90