How to check the PCV, Timing Belt and presence of fault codes
Presence of fault codes:
DTC SET – errors found in module
CHECKING – waiting for information from module
READY – no errors
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If these modules have a code it 'may' mean more expensive repairs
BCM – Brake Control Module (may or may not be and ABS module)
CCM – Climate Control Module
CEM – Central Electronic Module (2004up may want to negotiate the price)
DEM – Differential Electronic Module (AWD, don't buy if a code is set)
ETM – Electronic Throttle Module (2001-2002, $1000+ repair)
REM – Rear Electronics Module
SAS – Steering Wheel Angle Sensor (not expensive, may trigger Anti-Skid light)
SRS – Supplemental Restraint System (usually just needs erased)
SUM – Suspension Module (S60R V70R, the active suspension fails struts/shocks and are expensive to replace)
TCM – TransmissionMessage Channel Module (may mean a problem with the valve body, don't buy)
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Complete list with modules
ABS – Anti-Lock Brake System
ADM – Additive Dosing Module
AEM – Accesory Electronic Module
AFM – AM/FM Tuner Module
ATM – Antenna Module
AUD – Audio Module
AUM – Audio Module
BCM – Brake Control Module
CCM – Climate Control Module
CEM – Central Electronic Module
CPM – Combustion Preheater Module
DDM – Driver Door Module
DEM – Differential Electronic Module
DIM – Driver Information Module
ECM – Engine Control Module
EPS – Electrical Power Steering Module
ETM – Electronic Throttle Module
IAM – Integrated Audio Module
ICM – Information Control Module
KVM – Keyless Vehicle Module
LPG – LPG Module
LSM – Light Swith Module
MMM – Multimedia Module
MPM – Media Player Module
PAM – Parking Assistance Module
PDM – Passenger Door Module
PHM – Phone Module
PSL – Power Seat Left
PSR – Power Seat Right
REM – Rear Electronics Module
RTI – Road Traffic Information Module
SAS – Steering Wheel Angle Sensor
SHM – Seat Heating Module
SRM – Sunroof Module
SRS – Supplemental Restraint System
SUB – Subwoofer Module
SUM – Suspension Module
SWM – Steering Wheel Module
TCM – TransmissionMessage Channel Module
TMC – Traffic Message Channel Module
TRM – Trailer Module
UEM – Upper Electronic Module
WMM – Wiper Motor Module