wiring AUDI A8 2000 D2 / 1.G AHA Engine Motronic Ignition System Workshop Manual
[x] Cancel search | Manufacturer: AUDI, Model Year: 2000, Model line: A8, Model: AUDI A8 2000 D2 / 1.GPages: 34, PDF Size: 0.19 MB
Page 3 of 34
28-2
Camshaft Position (CMP) sensor -G40-,
checking
Notes:
Camshaft Position (CMP) sensor -G40- is
located on the rear of the left cylinder head
(bank 2).
Checking -G163- page 28
-5
Component location page 24
-1
Required special tools and test equipment
VAG1598/22 test box
Multimeter US1119 (Fluke 83 or equivalent)
VW1594 connector test kit
Wiring diagrams
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Page 4 of 34
28-3
Checking
- Disconnect 3-pin harness connector from
Camshaft Position (CMP) sensor -G40-.
If voltage is OK: - Connect multimeter US1119 (Fluke 83 or equivalent) to measure
voltage across CMP connector terminals 1 (B+) and 3 (Ground), using
adapters from VW1594 connector test kit.
- Switch ignition on.
- Measure voltage between terminals 1 and 3.
Specified value: 9-14.5 volts
- Switch ignition off.
- Connect VAG1598/22 test box to Motronic ECM harness connector
page 01
-67
.
- Check wiring for open circuit between ECM/test box and 3-pin harness
connector, according to wiring diagram.
Connector terminal 1 to ECM/test box socket 11
Connector terminal 2 to ECM/test box socket 44
Connector terminal 3 to ECM/test box socket 14
Specified value: max. 1.5
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Page 5 of 34
28-4
If wiring is OK (and voltage across terminals 1 and 3 is OK):
If wiring is OK (but still no voltage across terminals 1 and 3): - Check wiring for short circuit between ECM/test box and 3-pin harness
connector, according to wiring diagram.
Connector terminal 3 to ECM/test box socket 44
Connector terminal 3 to ECM/test box socket 11
Connector terminal 2 to ECM/test box socket 11
Specified value:
- Replace Camshaft Position (CMP) sensor -G40-.
- Replace Motronic ECM -J220- page 01
-68
.
- Carry out adaptation of throttle valve control module to ECM page
24
-150
.
- Check readiness code page 01
-70
.
If Diagnostic Trouble Code (DTC) memory has been erased, or ECM
has been disconnected, generate new readiness code page 01
-73
.
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Page 6 of 34
28-5
Camshaft Position (CMP) sensor 2 -
G163-, checking
Notes:
Camshaft Position (CMP) sensor 2 -G163- is
located on the front of the right cylinder head
(Bank 1).
Checking -G40- page 28
-2
Component location page 24
-1
Required special tools and test equipment
VAG1598/22 test box
Multimeter US1119 (Fluke 83 or equivalent)
VW1594 connector test kit
Wiring diagrams
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Page 7 of 34
28-6
Checking
- Disconnect 3-pin harness connector from
Camshaft Position (CMP) sensor 2 -G163-.
If voltage is OK: - Connect multimeter US1119 (Fluke 83 or equivalent) to measure
voltage across CMP connector terminals 1 (B+) and 3 (Ground), using
adapters from VW1594 connector test kit.
- Switch ignition on.
- Measure voltage between terminals 1 and 3.
Specified value: 9-14.5 volts
- Switch ignition off.
- Connect VAG1598/22 test box to Motronic ECM harness connector
page 01
-67
.
- Check wiring for open circuit between ECM/test box and 3-pin harness
connector, according to wiring diagram.
Connector terminal 1 to ECM/test box socket 11
Connector terminal 2 to ECM/test box socket 76
Connector terminal 3 to ECM/test box socket 67
Specified value: max. 1.5
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Page 8 of 34
28-7
If wiring is OK (and voltage across terminals 1 and 3 is OK):
If wiring is OK (but still no voltage across terminals 1 and 3): - Check wiring for short circuit between ECM/test box and 3-pin harness
connector, according to wiring diagram.
Connector terminal 3 to ECM/test box socket 76
Connector terminal 3 to ECM/test box socket 11
Connector terminal 2 to ECM/test box socket 11
Specified value:
- Replace Camshaft Position (CMP) sensor 2 -G163-.
- Replace Motronic ECM -J220- page 01
-68
.
- Carry out adaptation of throttle valve control module to ECM page
24
-150
.
- Check readiness code page 01
-70
.
If Diagnostic Trouble Code (DTC) memory has been erased, or ECM
has been disconnected, generate new readiness code page 01
-73
.
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Page 9 of 34
28-8
Knock sensor and knock sensor control,
checking
Required special tools and test equipment
VAG1551/1552 Scan Tool (ST) with
VAG1551/3 adapter cable
VAG1598/22 test box
Multimeter US1119 (Fluke 83 or equivalent)
VW1594 connector test kit
Wiring diagrams
Checking
- Connect VAG1551/1552 Scan Tool (ST) and
press buttons -0- and -1- to insert "Engine
Electronics" address word 01 (with engine
running at idle) page 01
-8 .
Rapid data transfer
HELP
Select function XX
Indicated on display
- Press buttons -0- and -8- to select "Read Measuring Value Block"
function 08, and press -Q- button to confirm input.
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Page 15 of 34
28-12
Continuation
- Disconnect 3-pin connector from Knock Sensor
(KS) 1 -G61-.
If resistance is OK (no continuity): - Connect multimeter US1119 (Fluke 83 or equivalent) to measure
resistance between connector terminals, using adapters from VW1594
connector test kit.
Connector terminals 1 and 2
Connector terminals 1 and 3
Connector terminals 2 and 3
Specified value:
- Connect VAG1598/22 test box to Motronic ECM harness connector
page 01
-67
.
- Check wiring for open circuit between ECM/test box and 3-pin harness
connector, according to wiring diagram.
Connector terminal 1 to ECM/test box socket 68
Connector terminal 2 to ECM/test box socket 67
Connector terminal 3 to ECM/test box socket 67
Specified value: max. 1.5
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Page 16 of 34
28-13
If the wiring is OK:
If the malfunction still exists (stored in DTC memory): - Check wiring for short circuits between terminals of 3-pin connector,
and between connector and ECM/test box.
Connector terminal 2 to ECM/test box socket 68
Connector terminal 3 to ECM/test box socket 68
Specified value:
- Loosen knock sensor and tighten to 20 Nm (15 ft lb).
- Replace Knock Sensor (KS) 1 -G61-.
- Check readiness code page 01
-70
.
If Diagnostic Trouble Code (DTC) memory has been erased, or ECM
has been disconnected, generate new readiness code page 01
-73
.
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Page 17 of 34
28-14
- Disconnect 3-pin connector from Knock Sensor
(KS) 2 -G66-.
If resistance is OK (no continuity): - Connect multimeter US1119 (Fluke 83 or equivalent) to measure
resistance between connector terminals, using adapters from VW1594
connector test kit.
Connector terminals 1 and 2
Connector terminals 1 and 3
Connector terminals 2 and 3
Specified value:
- Connect VAG1598/22 test box to Motronic ECM harness connector
page 01
-67
.
- Check wiring for open circuit between ECM/test box and 3-pin harness
connector, according to wiring diagram.
Connector terminal 1 to ECM/test box socket 60
Connector terminal 2 to ECM/test box socket 67
Connector terminal 3 to ECM/test box socket 67
Specified value: max. 1.5
Pa
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play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU03.28.1