S6 V8-4.2L (BBD) (2004)
(in relay- and fuse-carrier in E-Box, plenum chamber, position 3) for open circuit according to wiring diagram.
-
Specified value: Wire resistance max 1.5 Ohms
-
Connect multimeter for voltage measurement as follows.
3-pin relay carrier, E-box,
Measure to
plenum chamber, position 3
Terminal
4
Engine Ground (GND)
-
Operate starter briefly.
-
Specified value: approx. battery voltage
-
Switch ignition off.
If specified value is not obtained:
-
Check wire connection from Secondary Air Injection (AIR) Pump Relay -J299- (in 3-pin relay carrier, E-box plenum chamber) to Fuel Pump (FP)
relay via Fuse -S234- (in fuse holder, position 34) for open circuit according to wiring diagram.
-
Specified value: Wire resistance max 1.5 Ohm
Check activation of the Secondary Air Injection (AIR) pump relay
-
Remove Secondary Air Injection (AIR) pump relay -2-.
-
Connect test box to wiring harness of Engine Control Module (ECM); ECM is not connected. See: Computers and Control Systems/Testing and
Inspection/Reading and Clearing Diagnostic Trouble Codes/Scan Tool Connecting/With Generic Scan Tool/Test Box, Connecting For Wiring
Test