|
No.
|
TECH 1 Display
|
Conditions for
Checking
|
Nominal Value
|
Trouble Codes
|
Terminal
|
|
|
01
|
SELECT ACTUATOR RET.
PUMP RELAY
|
Ignition ON
Press key F5 in the system main menu, use the arrow
keys to select the desired test and confirm with YES. Follow the instructions
in the TECH 1 display
|
Pump runs
|
35
|
35
|
|
|
|
|
Note:
The relay for the return pump is actuated for approx.
5 s. When the relay is actuated, the pump must run.
|
|
|
|
|
|
Note:
The return pump relay is a fixed
part of the control unit (soldered to the control unit printed circuit board)
and therefore cannot be exchanged.
|
|
Notes for Trouble - shooting:
|
Nominal Value:
|
Cause of Fault:
|
|
|
|
|
|
|
|
· Ignition
ON
|
|
|
|
|
· Vehicle
at standstill
|
greater than 12 V
|
· Plug
connection U 4.8 / X 4P defective
· Ground
connection
- U 4.8 /
X 4P / Ter. 3
- pump motor casing defective
· Battery
discharged
· Battery
defective
· Control
unit U 4.8 defective
|
|
|
|
|
|
|
|
|
|
|
