Volkswagen Passat 1995 Official Factory Repair Manual page 1625

Diagnostic Trouble Code (DTC) table
Scan Tool Display
00549 2243
Consumption signal
Short circuit to
positive
00553 2243
Mass Air Flow sensor -
G70
Open circuit/short
circuit to positive
Short circuit to
ground
*) Refers to the signal sent to the Multi-function Indicator for calculating fuel consumption.
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Possible cause
Wiring short circuit to
positive
G70 faulty
Open circuit or short
circuit to positive
Wiring or G70 short to
ground
Unmeasured air between
G70 and engine
Corrective steps
Locate short circuit using wiring
diagram and correct as necessary
Replace G70 Page 24-12
Check wiring to G70
test steps 28 and Fig. 4 .
Check intake air system for leaks
(unmeasured air)
Page 12 of 23
01-18
, item 8
Page 01-43 ,
6/12/2004