fuse box location AUDI A4 1996 B5 / 1.G AEB ATW Engines Secondary Air System Workshop Manual
Page 12 of 16
26-40
Checking voltage supply of Secondary Air
Injection (AIR) pump relay
- Remove Secondary Air Injection (AIR) pump
relay.
If specified value is not obtained: - Connect multimeter for voltage measurement as follows.3-socket relay carrier in E-box, plenum
chamber, position 2
terminal
Measure to
8 Engine Ground
(GND)
Specified value: approx. battery voltage
- Perform the following tests marked with dots:
Electrical Wiring Diagrams, Troubleshooting & Component Locations Check fuse S130 (40 A) in 3-socket relay carrier in E-Box, plenum
chamber, position 7. Check wire connection from Battery (B+) (terminal 30) to Secondary
Air Injection (AIR) pump relay -J299- (in 3-socket relay carrier in E-
Box, plenum chamber, position 2) for open circuit.
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Page 13 of 16
26-41
If specified value is not obtained: - Connect multimeter for voltage measurement as follows.3-socket relay carrier in E-box, plenum
chamber, position 2
terminal
Measure to
4 Engine Ground
(GND)
- Operate starter briefly.
Specified value: approx. battery voltage
- Perform the following tests marked with dots:
Electrical Wiring Diagrams, Troubleshooting & Component Locations Check fuse S234 (in fuse holder, position 34). Check wire connection from Secondary Air Injection (AIR) pump relay
-J299- (in 3-socket relay carrier in E-box, plenum chamber) via fuse
S234 (in fuse holder, position 34) to Fuel Pump (FP) relay for open
circuit:
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