lock AUDI A4 1999 B5 / 1.G AC System Electrical Testing Workshop Manual

01-130

VAG1598/11 adapter cable Measuring range: Resistance measurement (200 ohm)
Test
step VAG1598
socket Test of
Test
conditions
- additional
steps Specified
values Corrective action
5.5 2 + 49 A/C Refrigerant High
Pressure Switch -F118-
- less than
20 W - Determine and rectify open circuit in
wiring or contact resistance using wiring
diagram.1)
- Replace -F118- page 87
-25
.
1)If code 1 "high-pressure switch -F118 open" is displayed in measuring value block 1 as a compressor cut-off condition: -Test
connections to -F118- for loose terminal using wiring diagram. -Test actuation of Coolant Fan V7 stage 1 Output Diagnostic Test Mode, page 01
-42
. Test actuation of Coolant Fan V7 stage 2 page 01
-42
. If no fault can be determined, check for
refrigerant system malfunction, refrigerant system pressure test page 87
-190
.
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01-145

Adapter cable VAG1598/11 connected.
Measuring range: Resistance measurement (200 ) Test
Step VAG1598
socket Test of
Test
conditions
- additional
work Specified
Value Corrective action
5.11 2 + 42 A/C pressure switch -
F129- (between
terminals 1 and 2)
Ignition
off - Less than
20
- Diagnose and repair open circuit or contact
resistance in wiring/connections using wiring
diagram.1).
- Check A/C pressure switch -F129- page 87
-67
.
1) If compressor cut-off condition code 1, "A/C pressure switch -F129- open" etc. appears in read measuring value block,
display group 1, display field 1: - check for intermittent contact in wiring/connections to -F129- using wiring diagram - check
function of Coolant Fan -V7- stage 1 with Output DTM (function
03)
page 01
-42
- check A/C pressure switch -F129- function
(actuation of -V7- stage 2, terminals 3 and 4 page 87
-67
). If no fault is determined, check A/C refrigerant system pressures
page 87
-190
.
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11/21/2002 htt
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