Control module and output signals

WARNING: This page is about a different variant/trim than selected.

DTC	Error Message	Diagnostic Procedure	Malfunction Criteria and Threshold Value	Secondary Parameters with Enable Conditions	Monitoring Time Length	Frequency of checks, MIL Illumination
P0601	Internal Control Module Memory Check Sum Error	Replace the Motronic Engine Control Module (ECM) J220. Refer to → Motronic Engine Control Module (ECM) J220, Replacing . Replace the Direct Shift Gearbox (DSG) Mechatronic J743. Refer to 35 GEARS, SHAFTS .	Internal check sum, incorrect		0.5 Seconds	2 DCY
P0604	Internal Control Module Random Access Memory (RAM) Error	Replace the Motronic Engine Control Module (ECM) J220. Refer to → Motronic Engine Control Module (ECM) J220, Replacing . Replace the Direct Shift Gearbox (DSG) Mechatronic J743. Refer to 35 GEARS, SHAFTS .	Write ability check, failed		0.5 Seconds	2 DCY
P0605	Internal Control Module Read Only Memory (ROM) Error	Replace the Motronic Engine Control Module (ECM) J220. Refer to → Motronic Engine Control Module (ECM) J220, Replacing . Replace the Direct Shift Gearbox (DSG) Mechatronic J743. Refer to 35 GEARS, SHAFTS .	Check, failed		0.5 Seconds	2 DCY
P0606	ECM/PCM Processor	Replace the Motronic Engine Control Module (ECM) J220. Refer to → Motronic Engine Control Module (ECM) J220, Replacing . Replace the Direct Shift Gearbox (DSG) Mechatronic J743. Refer to 35 GEARS, SHAFTS .	Difference of measured internal resistance with adjustment resistance >15 Ohm Absolute adjustment voltage of LSU - >0.1V Or Absolute correction value of LSU for rich characteristic >0.1V Control byte Not correct Fault in communication between IC and ECM Logical Voltage supply for IC (CJ120) 9 V Signal exceeds lower or upper threshold -0.10 V U 4.9 V 500 hpa ambient press. 1.200 hpa	Time after start, 4 Sec. Engine speed, Idle Delta Lambda 1%	25 Seconds Cont 2 Seconds	2 DCY
P0638	Throttle Actuator Control Range/Performance - Bank 1	Check the Throttle Valve Control Module J338. Refer to → Throttle Valve Control Module J338 , Checking Check the Throttle Drive Angle Sensor 1 (for Electronic Power Control (EPC)) G187/Throttle Drive Angle Sensor 2 (for Electronic Power Control (EPC)) G188. Refer to → Throttle Drive Angle Sensor 1 (for Electronic Power Control (EPC)) G187/Throttle Drive Angle Sensor 2 (for Electronic Power Control (EPC)) G188 , Checking .	Max. above >4.841 V Min. below 0.272 V Open 15% - t>=0.14 sec. Close to 6% -t>0.56 sec. Comparison actual to stored values And Comparison of upper and lower reference points within stored limits Throttle valve open 3.7 9.8% and values not corresponding	Adaptation during ign. On. Engine off Intake air temp, > 5°C ECT, > 5 - 105°C	10 Seconds	2 DCY
P0685	ECM/PCM Power Relay Control Circuit/Open	Check the Throttle Valve Control Module J338. Refer to → Throttle Valve Control Module J338 , Checking Check the Throttle Drive Angle Sensor 1 (for Electronic Power Control (EPC)) G187/Throttle Drive Angle Sensor 2 (for Electronic Power Control (EPC)) G188. Refer to → Throttle Drive Angle Sensor 1 (for Electronic Power Control (EPC)) G187/Throttle Drive Angle Sensor 2 (for Electronic Power Control (EPC)) G188 , Checking .	Open circuit		0.5 Seconds	2 DCY
P0686	ECM/PCM Power Relay Control Circuit Low	Check the voltage supply for Motronic Engine Control Module (ECM) J220. Refer to → Voltage Supply, Checking . Check the activation of Engine Control Module (ECM) Power Supply Relay J271. Refer to → Motronic Engine Control Module (ECM) Power Supply Relay J271 , Checking .	Short to ground		0.5 Seconds	2 DCY
P0687	ECM/PCM Power Relay Control Circuit High	Check the voltage supply for Motronic Engine Control Module (ECM) J220. Refer to → Voltage Supply, Checking . Check the activation of Engine Control Module (ECM) Power Supply Relay J271. Refer to → Motronic Engine Control Module (ECM) Power Supply Relay J271 , Checking .	Short to battery +		0.5 Seconds	2 DCY