Diagnosis with Address Word 01
DIAGNOSIS USING ADDRESS WORD 01Address Word 01 functions are only accessable with the VAG 1551 Scan Tool or the VAG 1552 Scan Tool. Diagnosis with a Generic Scan Tool is possible using the diagnostic modes of Address Word 33. The VAG Scan Tools are also capable of accessing the Address Word 33 diagnostic modes.
TEST REQUIREMENTS
Electronic Box With Circuit Breakers:
- Fuse 17 and engine electronics circuit breakers 1, 2, 3 and 4 (holder colors black, brown, red and yellow) in the electronic box in passenger floor OK.
- Fuel pump relay OK.
- Ground connections OK.
PROCEDURE
- Ensure Test Requirements are met.
Data Link Connector Cover:
- Remove Data Link Connector (DLC) cover located in front tray of center console.
Connecting VAG 1551 Scan Tool:
- Connect Scan Tool VAG 1551 using adaptor cable VAG 1551/3 to Data Link Connector (DLC).
- Modes 1 - Rapid data transfer and 2 - Blink code output appear alternately.
- Display appears as shown:
V.A.G. - On Board Diagnostic HELP
1 - Rapid data transfer
OR
V.A.G. - On Board Diagnostic HELP
2 - Blink code output
- If display is not shown, check voltage supply (B+) to DLC.
Notes:
^ Press the HELP button for additional operating instructions.
^ Press the "arrow" button to advance through the program sequence.
VAG 1551 FUNCTION NOTES
^ Diagnostic Trouble Code (DTC) Memory reading/erasing (Address Word 01, functions 02 and 05): Perform with engine running. If engine will not start, crank engine for a minimum of 5 seconds, do not switch OFF ignition after cranking.
^ Output Diagnostic Test Mode (DTM) (Address Word 01, function 03): Switch ignition ON, but do not start engine
^ Basic Setting (Address Word 01, function 04): Let engine run or switch ignition ON.
^ Read Measuring Value Block (Address Word 01, function 08): Let engine run or switch ignition ON.
- Press PRINT button to switch printer on (LED in button must light up).
- Press button -1- to select "Rapid data transfer" mode.
- Display appears as shown:
Rapid data transfer HELP
Insert address word XX
Note: To conduct an automatic test sequence, insert address word 00 and acknowledge with the -Q- button. DTC memory will be activated in all systems with rapid data transfer.
- Press buttons -0- and -1- to select "Engine Electronics" function 01.
- Display appears as shown:
Rapid data transfer Q
01 - Engine Electronics
- Press -Q- button to confirm input.
- Display appears as shown:
Rapid data transfer Q
Scan Tool sends Address Word 01
If display appears as shown:
Rapid data transfer HELP
Control module does not answer
- Press the HELP button to print list of possible causes.
Note: Check DLC wiring.
- After eliminating possible cause, re-enter "Engine Electronics" Address Word 01, then press -Q- button to confirm input.
If the display appears as shown:
Rapid data transfer
Error in communication link
- Disconnect data link connector wire from other vehicle systems having OBD (rapid data transfer) capabilities.
If either of the following displays appears:
Rapid data transfer HELP
K wire not switching to Ground
Rapid data transfer HELP
K wire not switching to B+
- Press the HELP button to print list of possible causes.
Notes:
^ Check DLC wiring.
^ Disconnect data link connector (DLC) wire from other vehicle systems having 080 (rapid data transfer) capabilities.
- After eliminating possible cause, re-enter "Engine Electronics" Address Word 01, then press -Q- button to confirm input.
ECM identification and coding should be displayed, shown as follows:
8A0906266D 2.8L V6/2V MFI OBD 2 D02
Coding 01002 WSC 06812
Code breakdown is as follows:
^ ECM identification: 8A0 906 266D, for actual ECM Part No. see latest parts catalog microfiche
^ Engine displacement: 2.8 liter
^ Engine design: V-engine, 6-cylinder
^ Number of valves per cylinder: 2 valves
^ Fuel injection system: Multiport fuel injection
^ ECM software version: (OBD II, ECM EPROM status)
^ ECM hardware and software version: (D02, ECM program status)
^ Coding: 01002
^ WSC _____ (Dealer number)
Note: If the correct ECM identification corresponding to the vehicle is not displayed, replace the ECM.
- Press "arrow" button.
- Display appears as shown:
Rapid data transfer HELP
Select function XX
Note: Press the HELP button for additional operating instructions.
- Input the function number.
Available Functions:
^ Function 01: Check Control Module Versions
^ Function 02: Check DTC Memory
^ Function 03: Output Diagnostic Test Mode
^ Function 04: Basic Setting
^ Function 05: Erase DTC memory
^ Function 06: End Output
^ Function 08: Read Measuring Value Block
- Press "arrow" button.
- Press "Q" button to confirm the function selected.