Explanation of Tables
TECH 1 is equipped with a 4 line/16 character display. Only a
limited amount of information can be indicated on this display.Therefore
listings of trouble codes, coding tables or additional necessary instructions
are summarized in "Tables".
A detailed explanation is contained in the TECH 1 Operating
Instructions.
The relevant table is indicated in the TECH 1 display.
Table 1, TECH 1 Checking
TECH 1 refers to table 1, if the equipment is correctly
connected, but no data (with ignition ON) can be received by TECH 1.
· Start TECH 1 self-test. Connect TECH 1
OPEL Test Adapter between TECH 1 and diagnositc plug in vehicle (see Operating
Instructions).
If data can still not be received after the self-test:
- Diagnostic
plug (ALDL)
- Control
unit voltage supply
- Control
unit ground connection
are to be checked according to Table 1.
Table 1, Diagnostic
Plug ALDL and Voltage Supply, Check
|
Test Step No.
|
Test Equipment
Multimeter MKM-587-A
|
Test
of
|
Notes
|
Nominal
Values
|
Possible Cause of
Fault, Trouble-shooting
|
|
1
|
Ohmmeter range 200 W
|
Diagnostic plug (ALDL): ground
|
A/ground
|
Ignition ON
|
approx. 0 W
|
· Transfer resistance at grounding point
too high
|
|
2
|
Voltmeter range 20 V DC
|
Diagnostic plug (ALDL): diagnostic excitation lead
|
J/ground
|
Ignition ON
|
> 11.5 V
|
· Lead interruption between
X 13/Ter. J; control unit plug K 95/Ter.10
|
|
3
|
Voltmeter range 20 V DC
|
Diagnostic plug (ALDL): voltage supply
|
F/ground
|
Ignition ON
|
> 11.5 V
|
· Fuse F 24 defective
· Battery voltage too low
· Lead interruption between
X 13/Ter. F; F 24
|
|
4
|
Ohmmeter range 200 W
|
Diagnostic plug X 13: data lead
|
X 13/Ter. G ;control unit plug K 95/
Ter. 9
|
Disconnect plug from X 13 and K 95
|
0 to 5 W
|
· Lead interruption between plug to
X 13/Ter. G and control unit plug K 95/Ter. 9
|
|
5
|
Voltmeter range 20 V DC
|
K 95 Ter. 28,32
|
Control unit plug K 95/ Ter. 28; vehicle ground
|
Ignition ON Disconnect control unit plug K 95
|
> 11.5 V
|
· Battery voltage too low
· Lead interruption between battery (+)
and K 95
|
|
6
|
Ohmmeter range 200 W
|
K 95 Ter. 13, 30
|
Control unit plug K 95/ Ter. 13;vehicle ground
|
Disconnect control unit plug K 95
|
0 to 5 W
|
· Lead interruption between control unit
plug K 95/Ter. 13, 30 and vehicle ground
|
