Work step 7: Secondary air system diagnosis

Indicated on display

Fig 1: Scan Tool Display - Work Step 7: Secondary Air System Diagnosis (Basic Setting)

Courtesy of VOLKSWAGEN OF AMERICA, INC.

• Press keys 0, 7 and 7 for "Display group number 77" and confirm entry with Q key.

Indicated on display: (1 to 4 = Display zones)

Fig 2: Scan Tool Display - Work Step 7: Secondary Air System Diagnosis (System In Basic Setting 77)

Courtesy of VOLKSWAGEN OF AMERICA, INC.

If the diagnosis is initiated from the engine control module the display in display zone 4 jumps from "Test OFF" to "Test ON".

• Allow engine to continue running at idling speed until specification:

"Syst. OK"

is displayed in display zone 4.

If the display does not indicate as described:

• Check DTC Memory. See Diagnostic Trouble Code (DTC) memory .

  If the display indicates as described:

• Press --> key.