Multec (X 12 SZ / X 16 SZ) F0: DATA LIST
| No. | TECH 1 Display | Conditions for Checking | Nominal Value | Trouble Codes | Terminal |
|---|---|---|---|---|---|
| 06 | DESIRED IDLE | Engine running at idle speed, operating temperature | - | - | |
| Vehicles with MT | 900 rpm | ||||
| Vehicles with AT | |||||
| Engage parking brake | |||||
| Selector lever position P N | 775 rpm | ||||
| R D 21 | 700 rpm |
Test step "DESIRED IDLE " is only active in TECH 1 mode "F8". Test step "DESIRED IDLE " may be used to test engine behaviour at increased speeds. Using the arrow keys, it is possible to alter the speed within a range of 650 rpm to 1800 rpm. All other TECH 1 displays can be monitored simultaneously. TECH 1 is automatically in the snapshot mode, so that in the event of any unusual occurrence the memory function can be immediately activated via "F9" key. TECH 1 uses the idle speed stepper motor to set the speed to the desired value; a change in the "IDLE AIR CONTROL " display is therefore not a fault.
| Trouble - shooting: | Nominal Value: | Cause of Fault: |
(If nominal value is not attained)
· Select TECH 1 mode "F8" and confirm with YES key.
· Engine at idle speed, operating temperature
| Engine speed increases to 1000 rpm | · Carry out TECH 1 selection once again |
· Check idle speed regulator (test step 08)
| · Check throttle valve potentiometer (test step 04) |
* Only possible if trouble code 21 or 22 is not present.