Volkswagen Passat 1995 Official Factory Repair Manual page 1647

Output Diagnostic Test Mode (DTM), initiating
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- Perform electrical check
step Fig. 33 or locate short circuit using wiring
diagram and correct as necessary.
If an open circuit cannot be located:
- Replace Secondary Air Injection solenoid valve
(N112) or Motronic Engine Control Module
(J220) as necessary.
If the relay clicks:
- Press
button.
Note:
After completion of the Output Diagnostic Test
Mode, input 06 to select Function "End output"
and confirm with Q.
- Switch off ignition.
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6/12/2004