F0:DATA LIST
· Disconnect wiring harness plug from:
S8
brake lamp switch
· Using multimeter, measure voltage
from: S8
brake lamp switch wiring harness plug Ter. 1 (SW)
to: ground
· Disconnect wiring harness plugs from:
H9,
H10 and H36 brake lamps
K61
Motronic control unit
K69
Simtec control unit
K70
DDE control unit
K102
electric selector lever pawl
P25
Check Control control unit
U4.8
ABS control unit
from: S8
brake lamp switch wiring harness plug Ter. 1 (SW)
to: S8
brake lamp switch wiring harness plug Ter. 2 (SWGE)
Carry out the following
tests on the following pages after each time one of the wiring harness plugs
is connected.
· Ignition OFF
· Connect wiring harness plugs:
H9,
H10 and H36 brake lamps
K61
Motronic control unit
K69
Simtec control unit
K70
DDE control unit
K102
electric selector lever pawl
P25
Check Control control unit
U4.8
ABS control unit
|
No.
|
TECH 1 Display
|
Conditions for
Checking
|
Nominal Value
|
Trouble Codes
|
Terminal
|
|
02
|
BRAKE
SWITCH
|
Ignition ON
Engage parking brake
|
|
84
|
35, 39
|
|
|
|
Brakes not actuated
|
INACTIVE 0V
|
|
|
|
|
|
Brakes actuated
|
ACTIVE 12V
|
|
|
| Notes
on trouble-shooting: |
|
Nominal value:
|
Cause of fault:
(If nominal value is not
attained)
|
| · Check H9, H10, H36 brake lamps and F2 fuse |
|
OK
|
· Replace defective parts
If fuse F2 is defective, insert
new fuse and repeat test according to conditions for checking.
If fuse blows again, proceed
with following diagnosis.
|
| · Ignition ON |
|
higher
than 11 V
|
· Fuse F2 defective
· Short circuit to ground or circuit
interruption
from: S1
ignition lock wiring harness plug Ter. 15
to: S8
brake lamp switch wiring harness plug Ter. 1 (SW)
· Short circuit to ground
from: S1
ignition lock wiring harness plug Ter. 15
to: U16
MID / U15 TID wiring harness plug Ter. 16 (SW)
· Short circuit to ground
from: F2
fuse socket
to: S52
hazard warning lamps switch wiring harness plug
Ter.
13 (SW)
· Fault in circuit for MID U16/ TID U15
(see
MID / TID Checking Procedures)
· S52 hazard warning lamps switch
defective
· S1 ignition lock defective
|
| · Ignition OFF |
|
|
|
|
· Ignition ON
|
|
|
|
· TECH 1 parameter BRAKE SWITCH
|
INACTIVE 0V
|
· Short circuit to voltage
from: S8
brake lamp switch wiring harness plug Ter. 2 (SWGE)
to: K85
transmission control unit wiring harness plug Ter. 39
· K85 transmission control unit defective
|
| · Bridge wiring harness plug |
|
|
|
|
· TECH 1 parameter BRAKE SWITCH
|
ACTIVE 12V
|
· Short circuit to ground or circuit
interruption
from: S8
brake lamp switch wiring harness plug Ter. 2 (SWGE)
to: K85
transmission control unit wiring harness plug Ter. 39
· K85 transmission control unit defective
|
| Important: |
|
|
|
| · Ignition ON |
|
|
|
|
· TECH 1 parameter BRAKE SWITCH
· Bridge wiring harness plug
from: S8
brake lamp switch wiring harness plug Ter. 1 (SW)
to: S8
brake lamp switch wiring harness plug Ter. 2 (SWGE)
|
INACTIVE 0V
|
· Fault in circuit of control
unit/component connected immediately beforehand
|
|
· TECH 1 parameter BRAKE SWITCH
|
ACTIVE 12V
|
· Fault in circuit of control
unit/component connected immediately beforehand
|
| |
|
If nominal values are attained
|
· Check adjustment of brake lamp switch
S8
· Brake lamp switch S8 defective
|
|
|
|
|
|
|
|
