|
No.
|
TECH 1 Display
|
Conditions for
Checking
|
Nominal Value
|
Trouble Codes
|
Terminal
|
|
31
|
TC SIGNAL STATUS
|
Vehicles with AF 22 automatic
transmission and TC (Traction Control) System:
Ignition OFF
Ignition ON
TC case triggered by driver
(vehicle travelling and drive
wheels spin
or
jack up vehicle - all four
wheels free - engage gear/engage clutch and accelerate to full throttle
briefly)
Note:
The parameter remains on
"RECEIVED" until the next "ignition OFF/ON" or until the
relevant bit in the control unit is reset via the corresponding TECH 1 reset
function. See section 5.7.
|
NOT RECEIV
RECEIVED
|
-
|
4,
35
|
|
Trouble-shooting:
|
Nominal Value:
|
Cause of
Fault:
(If nominal
value is not attained)
|
|
Carry out test step no. 30
Note:
If trouble-shooting is initiated as specified in test step
30, the TECH 1 display only changes after the next ignition OFF/ON.
|
|
|
|
Engine
does not start: AF 13
· Disconnect selector lever
position switch wiring harness plug X 9
· Ignition ON
· Measure voltage:
from: wiring harness plug X 9 Ter. G
to: ground, Ter. 31
|
less than 0.1
V
|
· Short circuiit to voltage
from: wiring harness plug X 9 Ter. G
to: ignition lock S 1 Ter. 50
· Ignition lock S 1
defective
· Fault in engine control
unit circuit
Anti-theft
Warning System
· Fault in anti-theft
warning system circuit (see Checking Procedures from 02/92, or 04/93)
|
|
· Ignition lock in start
position
|
greater than
11 V
|
· Short circuit to ground
or Circuit interruption
from: wiring harness plug X 9 Ter. G
to: ignition lock S 1 Ter. 50
· Ignition lock S 1
defective
· Fault in engine control
unit circuit
Anti-theft
Warning System
· Fault in anti-theft
warning system circuit (see Checking Procedures from 02/92, or 04/93)
|
|
· Briefly bridge wiring
harness plug X 9:
from: battery +, Ter. 30
to: wiring harness plug X 46 Ter. E
|
Starter
pinion meshes briefly
|
· Short circuit to ground
or circuit interruption
from: wiring harness plug X 9 Ter. A
to: starter M 1 Ter. 50
· Starter circuit
defective.
· Starter M1 defective.
Diesel / Turbodiesel
· Fault in preheater
control circuit
|
|
|
If nominal
values are attained
|
· Selector lever position
switch S 10/cable incorrectly adjusted or defective
|
|
Engine
does not start: AF 14/20/22
· Disconnect selector lever
position switch wiring harness plug X 46
· Ignition ON
· Measure voltage:
from: wiring harness plug X 46 Ter. G
to: ground, Ter. 31
|
less than 0.1
V
|
· Short circuiit to voltage
from: wiring harness plug X 46 Ter. G
to: ignition lock S 1 Ter. 50
· Ignition lock S 1
defective
· Fault in engine control
unit circuit
Anti-theft
Warning System
· Fault in anti-theft
warning system circuit (see Checking Procedures from 02/92, or 04/93)
|
|
· Ignition lock in start
position
|
greater than
11 V
|
· Short circuit to ground
or Circuit interruption
from: wiring harness plug X 46 Ter. G
to: ignition lock S 1 Ter. 50
· Ignition lock S 1
defective
· Fault in engine control
unit circuit
|
|
· Bridge wiring harness
plug X 46 briefly:
from: battery +, Ter. 30
to: wiring harness plug X 46 Ter. E
|
Starter
pinion meshes briefly
|
Anti-theft
Warning System
· Fault in anti-theft
warning system circuit (see Checking Procedures from 02/92, or 04/93)
· Short circuit to ground
or circuit interruption
from: wiring harness plug X 46 Ter. A
to: starter M 1 Ter. 50
· Starter circuit defective.
· Starter M 1 defective.
Diesel /
Turbodiesel
· Fault in preheater
control circuit
|
|
|
If nominal
values are attained
|
· Selector lever position
switch S 10/cable incorrectly adjusted or defective
|
|
Reversing
lamps AF 13
· Selector lever position
switch wiring harness plug X 9
· Ignition ON
· Measure voltage:
from: wiring harness plug X 9 Ter. B
to: ground, Ter. 31
|
less than 0.1
V
|
· Short circuit to voltage
from: wiring harness plug X 9 Ter. B
to: reversing lamps E 17 and E 18
|
|
· Briefly bridge wiring
harness plug X 46:
from: battery +, Ter. 30
to: wiring harness plug X 9 Ter. B
|
Reversing
lamps
briefly ON
|
· Short circuit to ground
or circuit interruption
from: wiring harness plug X 9 Ter. B
to: reversing lamps E 17 and E 18
· Circuit interruption
from: reversing lamps E 17 and E 18
to: ground, Ter. 31
· Reversing lamps E 17 and
E 18 defective.
|
|
|
If nominal values are attained
|
· Selector lever position
switch S 10/cable incorrectly adjusted or defective
|
|
Reversing lamps AF
14/20/22
· Disconnect selector lever
position switch wiring harness plug X 46
· Ignition ON
· Measure voltage:
from: wiring harness plug X 46 Ter. B
to: ground, Ter. 31
|
less than 0.1 V
|
· Short circuiit to voltage
from: wiring harness plug X 46 Ter. B
to: reversing lamps E 17 and E 18
|
|
· Briefly bridge wiring
harness plug X 46:
from: battery +, Ter. 30
to: wiring harness plug X 46 Ter. B
|
Reversing
lamps
briefly ON
|
· Short circuit to ground
or circuit interruption
from: wiring harness plug X 46 Ter. B
to: reversing lamps E 17 and E 18
· Circuit interruption
from: reversing lamps E 17 and E 18
to: ground, Ter. 31
· Reversing lamps E 17 and
E 18 defective.
|
|
|
If nominal values are attained
|
· Selector lever position
switch S 10/cable incorrectly adjusted or defective
|
|
|
|
|
|
|
|
|
