I Engine code AAA |
Diagnostic Trouble Code (DTC), Chart
Requirements
  multi-function indicator and speedometer (G21)OK
  before replacing components coded as faulty, first check the wiring and ground connections to these components using the proper wiring diagram. This is particularly relevant if the malfunction is displayed as being sporadic or "SP"
  the DTC (Diagnostic Trouble Code) and the blink code will only print out when the "Rapid data transfer" mode and then only if the Scan Tool printer is switched ON
Example:
DTC (Diagnostic Trouble Codes)
5 digit (Rapid data transfer) 65535
4 digit (blink code) 1111
Fuel and Ignition 01-77
VAG 1551 display
Possible cause
Corrective step
No malfunction recognized
If a malfunction is present; it is not being recognized by OBD (On Board Diagnosis)
00281 1231
Vehicle speed sensor (G 68)
Multi-function indicator gets no signal from speedometer (G 21)
=> wiring diagrams, repair or replace as necessary
Impossible signal No signal*
*To check the road speed signal; drive
i the vehicle at full load and raise the engine speed to 4500 RPM minimum.
00513 2111
Engine speed sensor (G 28)
(G 28) malfunctioning
♦ check (G 28) and related wiring, using wiring diagram, repair or replace as necessary
No signal
Open circuit in wiring
=> page 01-109, Test step 26
Impossible signal*
Sensor wheel for engine speed sensor malfunctioning or loose
♦ check sensor wheel for secure fit => Repair Groups 13 and 24
(G 28) loose
check tightness of (G 28)
*lt is unlikely that a malfunction due to
abrupt stalling of the engine (sporadic) will be stored.
00515 2113
Camshaft position sensor (G 40)
Camshaft position sensor (G 40) rotor twisted
♦ check distributor ♦ check control times
Open circuit/short to positive
Open circuit or short to positive in wiring (G 40)
♦ check wiring to (G 40) =* page 01-108, Test step 19
Short to ground
Short to ground in wiring (G 40)
♦ check wiring to (G 40) => page 01 -108, Test step 19
Fuel and Ignition 01-78
VAG 1551 display
Possible cause
Corrective step
00518 2212
Throttle position sensor (G 69)
Open circuit or short to positive in
♦ check wiring together with (G 69)
wiring (G 69)
Short to positive
Short to ground in (G 69) wiring
=> page 01-107, Test step 18
Short to ground
♦ check wiring together with (G 69)
for short lo ground using wiring
diagram, repair or replace as
necessary
00522 2312
Engine coolant temperature sender (G 62)* Short to ground
(G 62) malfunctioning
♦ check wiring and (G 62) for short
Short to ground in wiring
=> page 01 -107, Test step 15
Open circuit/short to positive
(G 62) malfunctioning, or corrosion
on connector
Open circuit/short to positive in wiring
00524 2142
Knock sensor I (G61)
(G61) malfunctioning
♦ replace (G 61)
Open circuit/short to positive
Open circuit/short circuit in sensor
♦ check wires to (G 61)
wiring
=> page 01-108, Test step 21
Knocking not recognized by Motronc
♦ replace (J 220)
engine control module (J 220)
00525 2342
Oxygen sensor probe (G 39)*
(G 39) malfunctioning
♦ replace (G 39)
No signal
Open circuit
♦ check wiring to (G 39)
Short to positive
Open circuit or short to positive
=> page 01-107, Test step 17
Short to ground
Short to ground in wiring or in (G 39)
Fuel level too low
♦ fill fuel tank then erase DTC
Memory
Fuel and Ignition 01-79
VAG 1551 display
Possible cause
Corrective step
00527 2412
Intake air temperature sensor (G 42)
(G 42) malfunctioning
♦ replace (G 42)
Short to ground
Short to ground in wiring or (G 42)
♦ check wiring together with (G 42) for a short to ground
Open circuit/short to positive
(G 72) malfunctioning
=> page 01-108, Test step 22
00532 2234
Supply voltage* Too high
Battery voltage above 16.0 V
♦ check generator (alternator) output
Too low
Battery voltage below 10.0 V
=> page 01-105, Test steps 1 + 2
00533 2231
Idle regulation adaption limit exceeded
Idle Air Control (IAC) valve (N 71) stuck or dirty
♦ check IAC valve. => Repair Group 24
♦ check intake air system, => Repair Group 24
Adaption limit not met
Air leak between Mass Air Flow sensor (G 70) and engine
♦ for vehicles with EGR, check EGR valve, => Repair Group 26
00535 2141
First knock regulation
Impossible signal
Knock regulation in ECM (J 220) defective
♦ replace (J 220)
The engine control module DOES NOT check voltage until the engine has been running for 3 minutes
Fuel and Ignition 01-80
VAG 1551 display
Possible cause
Corrective step
00537 2341 Oxygen sensor regulation'
O2S (Oxygen Sensor) probe heater defective
♦ check voltage supply to probe heater, => page 01-106, Test step 4
Regulating limit exceeded
Exhaust system leaking between cylinder head and catalyst
Misfiring
Intake air system leaking (outside air)
Injector(s) (N 30, N 31, N 32, N 33, N 83, N 84) malfunctioning
Fuel pressure too low
Hot wire for MAF sensor (G 70) not burning off cleanly
EVAP canister purge regulator valve (N 80) stuck (always open)
♦ check O2S heater for continuity ♦ check exhaust system
♦ check ignition system components
♦ check intake air system
♦ Check N 30, N 31, N 32, N 33, N 83, N 84) => Repair Group 24
♦ check fuel pressure regulator ♦ check (G 70)
♦ perform Output DTM (Output checks)
Regulating limit not reached
Fuel pressure too high
Injector(s) (N 30, N 31, N 32, N 33, N 83, N 84) malfunctioning, leaking
♦ check fuel pressure regulator
♦ check (N 30, N 31, N 32, N 33, N 83, N 84)
Signal to ground
Short to ground in O2S (Oxygen Sensor) probe (G 39) or in wiring
♦ check wiring together with (G 39) for short to ground, => page 01-107, Test step 17
Fuel and Ignition 01-81
VAG 1551 display
Possible cause
Corrective step
00540 2144
Knock sensor II (G 66)
(G 66) malfunctioning
replace (G 66)
No signal
Open circuit/short circuit in sensor wiring
♦ check wires to (G 66) => page 01-109, Test step 24
Knocking not recognized by Motronic engine control module (J 220)
♦ replace (J 220)
00543 2214
Maximum engine speed exceeded
Incorrect switching (internal) causes control to exceed speed governor
Signal too high
Signal from Engine RPM (speed) sensor (G 28) defective
♦ check wires together with (G 28) shield, => page 01-109, Test step 26
00545 2314
Engine/transmission electrical connection
Wire has short to ground
♦ determine and eliminate short using wiring diagram, repair or replace as necessary
Short to ground
00553 2324
Mass air flow sensor (G 70)*
(G 70) malfunctioning
♦ check wiring to (G 70)
Signal too high
Short to positive in wiring
♦ replace (G 70), => page 01-109, Test step 25
Signal to low
(G 70) malfunctioning or short to ground in wiring
♦ check wiring to (G 70), if wiring
OK, replace (G 70)
Air leak between (G 70) and engine (outside air)
♦ eliminate leaks
Fuel and Ignition 01-82
VAG 1551 display
Possible cause
Corrective step
00561 2413 Mixture adaption Adaption limit exceeded
or Adaption limit not reached
Fuel pressure NOT OK Misfiring
Intake air system leaking (outside air)
Injector(s) (N 30, N 31, N 32, N 33, N 83, N 84) defective, leaking
Hot wire for MAF sensor (G 70) not burning off cleanly
O2S (Oxygen Sensor) regulation faulty
Exhaust system leaking between cylinder head and catalyst
EVAP canister purge regulator valve (N 80) sticks in open position
check fuel pressure regulator
♦ check ignition system components
♦ check intake air system
♦ check (N 30, N 31, N 32, N 33, N 83, N 84)
♦ check (G 70), => page 01-109, Test step 25
♦ check wire to O2S (Oxygen Sensor) probe
♦ check exhaust system
♦ perform Output DTM (Output checks)
00585 2411
EGR temperature sensor (G 98)*
Short to ground
Temperature sensor in EGR valve (G 98) malfunctioning or wire is shorted to ground
♦ check wires to (G 98), => page 01-110, Test step 29
00586
Controlling EGR system
Impossible signal
EGR valve sticks or is malfunctioning
♦ check EGR valve, => Repair Group 26
Fuel and Ignition 01-83
VAG 1551 display
Possible cause
Corrective step
01025
Triggering for On Board Diagnostic (OBD) lamp malfunctioning
Short in positive Open circuit/short to ground
Wiring has short to positive
Malfunction indicator lamp malfunctioning
check wiring using wiring diagram, also => page 01-106, Test step 5
01242 4332
Output stages in engine control module
Mechanical malfunction
Loose terminal to one of the Output DTM components or to the Motronic engine control module (J 220)
♦ perform Output DTM (Output check) diagnosis
♦ check for loose terminal or connection in wiring to one of the Output DTM components or replace (J 220) if necessary
01247 4343
EVAP canister purge regulator valve (N80)
Open circuit/short to positive Open circuit/short to negative
(N 80) malfunction or short to positive in wiring
(N 80) malfunction or short to negative in wiring
♦ check wiring together with (N 80), => page 01-106, Test step 14
01249 4411
Injector for No. 1 cyl. (N 30) Open circuit/short to positive Open circuit/short to negative
(N 30) malfunction or short to positive positive
(N 30) malfunction or short to negative negative
♦ check wiring together with (N 30) => page 01-106, Test step 8
♦ check wiring together with (N 30) = page 01 -106, Test step 8
Fuel and Ignition 01-84
VAG 1551 display
Possible cause
Corrective step
01250 4412 Injector for No. 2 cyl. (N 31)
=> No. 1 cylinder (DTC Code 01249)
♦ check wiring and (N 31), => page 01-106, Test step 9
01251 4413 Injector for No. 3 cyl. (N 32)
=> No. 1 cylinder (DTC Code 01249)
♦ check wiring and (N 32), => page 01-106, Test step 10
01252 4414 Injector for No. 4 cyl. (N 33)
=> No. 1 cylinder (DTC Code 01249)
♦ check wiring and (N 33), => page 01-106, Test step 11
01253 4421 Injector for No. 5 cyl. (N 83)
=> No. 1 cylinder (DTC Code 01249)
♦ check wiring and (N 83), => page 01-106, Test step 12
01254 4422 Injector for No. 6 cyl. (N 84)
=> No. 1 cylinder (DTC Code 01249)
♦ check wiring and (N 84), => page 01-106, Test step 13
01257 4431 Idle air control valve (N 71)
Signal to positive Signal to ground
Mechanical malfunction
(N 71) malfunction or short to positive
(N 71) malfunction or short to negative in wiring (N 71) malfunction
♦ check wires together with (N 71) => page 01-108, Test step 23
♦ perform Output DTM (Output check) diagnosis
01259 4433
Fuel pump relay (J 17)
Short to positive
(J 17) malfunction or wire has short to positive
♦ check wiring and (J 17), => section D2-200, Test step 3
Fuel and Ignition 01-85
VAG 1551 display
Possible cause
Corrective step
01265 4312
EGR vacuum regulator solenoid valve (N 18)
Open circuit/short to ground Short to positive
EGR valve (N 18) malfunction or open circuit or wiring is shorted to ground
(N 18) malfunction or wiring is shorted positive
♦ check wiring to (N 18), => page 01-110, Test step 28
♦ check wiring and (N 18), => pages 01-109, 01-110, Test steps 27 and 28
65535 1111 ECM malfunctioning
Components in the Motronic engine control module (J 220) are malfunctioning
♦ replace (J 220)
Fuel and Ignition 01-86