Diagnostic Trouble Code (DTC) table

WARNING: This page does not describe the selected car, but rather 27 other vehicles, including the 2002 Volkswagen Cabrio, 2001 Volkswagen Cabrio, 2000 Volkswagen Cabrio, 1999 Volkswagen Jetta, and 1999 Volkswagen Golf. However, it is still accessible from the selected car via links, so may be relevant.

WARNING: Following repair work, always check DTC memory of Engine Control Module (ECM) and erase DTC memory contents "Engine Control Module (ECM) deactivated", check other stored DTC's and repair malfunctions if necessary.

DTC memory stores all static and sporadic malfunctions: If a malfunction occurs and persists for at least 2 seconds, it is identified as a static malfunction.
Static malfunctions that are no longer detected 2 minutes after driving cycle has begun (ignition on at least 2 seconds) are stored as sporadic. "/SP" will appear at right on scan tool display.
Sporadic malfunctions which are not detected again within 50 driving cycles (ignition on at least 2 seconds) are erased automatically.
The following list contains all malfunctions that can be recognized by the control module for anti-theft immobilizer -J362- and printed out by the VAG1551 scan tool. The malfunctions are listed in order according to their 5-digit numbers.
DTC numbers appear only on the print-out.
Before replacing a component shown as malfunctioning, check the wiring and connections to the component as well as the Ground (GND) connections according to wiring diagram.
Check engagement and proper seating of harness connectors on relay carrier.
After repairs, check DTC memory again using the VAG1551 scan tool, erase and then check again.

DIAGNOSTIC TROUBLE CODE (DTC) 01128 & 01176

Printed output from VAG1551 scan tool		Possible cause	Corrective action
No malfunction recognized!		If "No malfunction recognized!" is indicated after repair work has been completed, output Diagnostic Test Mode (DTM) is completed.
01128
Induction coil of anti-theft immobilizer -D2-		3-pin harness connector not connected at control module or induction coil with wire is malfunctioning.	Check induction coil with wire and harness connector (visual check), replace induction coil if necessary.
		Control module for anti -theft immobilizer -J362- malfunctioning.	Erase DTC memory and check again. See ERASE DTC MEMORY and CHECK DTC MEMORY . Replace control module for anti-theft immobilizer -J362- if necessary
01176
Key
	Signal too small	Induction coil or wire malfunctioning (transition resistance/loose contact).	Check induction coil with wire and harness connector (visual check), replace induction coil if necessary.
		Electronics in ignition key (transponder) missing or malfunctioning.	Replace ignition key, re-adapt all ignition keys and check for function. See IGNITION KEYS, MATCHING (ADAPTATION) .
	not authorized	Mechanically appropriate ignition key is not adapted.	Re-adapt all ignition keys and check for function. See IGNITION KEYS, MATCHING (ADAPTATION) .

DIAGNOSTIC TROUBLE CODE (DTC) 01177, 01179, 01202, 01314 & 65535

Printed output from VAG1551 scan tool		Possible cause	Corrective action
01177
Engine Control Module (ECM)
	not authorized	Engine Control Module (ECM) not adapted. W-wire between control modules is OK	Adapt Engine Control Module (ECM). See ENGINE CONTROL MODULE (ECM), PROCEDURE AFTER REPLACING .
01179
Key programming incorrect		Adaptation of ignition key is incorrect.	Re-adapt all ignition keys with input of secret number and check for function. See IGNITION KEYS, MATCHING (ADAPTATION) .
01202
Diagnostic cable
	Short circuit	Short circuit between wires of 10-pin harness connector socket 7 and 8 ("W" and "K") at control module for anti -theft immobilizer -J362-.	Check harness connector and repair malfunctions according to wiring diagram
		Control module for anti-theft immobilizer -J362- malfunctioning.	Erase DTC memory and check again. See ERASE DTC MEMORY and CHECK DTC MEMORY . Replace control module for anti-theft immobilizer -J362- if necessary.
01314
Engine Control Module (ECM) no communication		The vehicle was restarted during the after-run period for the Engine Control Module (ECM). The after -run period lasts at least 3 minutes following ignition off.	Erase DTC memory. Observe after-run period.
65535
Control module
	Malfunctioning	Short circuit between wires of 10 -pin harness connector socket 7 and 8 ("W" and "K").	Repair malfunction according to wiring diagram
		Control module for anti-theft immobilizer -J362- is not recognizing the correct baud rate (data transmission speed).	Replace control module for anti-theft immobilizer -J362-
		Control module for anti-theft immobilizer -J362- malfunctioning.	Replace control module for anti-theft immobilizer -J362-