| Test | TECH 1 | Notes | Nominal Values | Possible |
|---|---|---|---|---|
| Step | Display | Trouble | ||
| No. | Codes | |||
| 13 | RON CODING | Ignition ON, | - | |
| -E 16 NZ- | 13... | |||
| Coding plug on "91" | 91 0/ > 22 kW | |||
| Coding plug on "95" | 95 220 W |
Trouble-Shooting: Nominal Value: Cause of Fault:
· Ignition ON
Check coding plug resistance with multimeter: · Coding plug defective
Ter. B to Ter. C 0 Ohm
Ter. A to Ter. B 200 to 240 Ohm
· Ignition ON 4.9 to 5.1 V · Cable interruption control unit K 57/Ter. C 12
Measure voltage at plug X 15 to plug X 15/cable brown/blue
between cable brown/blue and cable brown · Short circuit cable/control unit K 57/Ter.
with multimeter C 12 with cable brown (ground)
· Control unit defective
· Test connection plug X 15/ Continuity · Cable interruption
cable brown to engine ground
with multimeter
· Nominal value: 98 470 W · Wrong coding plug,
RON 98 NOT permissible