Engine warning light comes on.
If the customer complains that the engine warning light comes on, the fault code P0030 (heated lambda probe 1, cylinder row 1, heating control circuit malfunction) may be stored.
The cause of the problem may be a poor production quality of solder joints in the wiring harness.
Possible cause:
- Interruption or excessive resistance in the wiring harness of the heated lambda probe.
- Interruption or excessive resistance in the wiring harness of the manifold air pressure sensor.
Remedy:
- Check solder joints in the wiring harness.
- Repair wiring harness if necessary.
Important safety note
Technical information and practical tips have been compiled by HELLA in order to provide professional support to vehicle workshops in their day-to-day work. The information provided on this website is intended for use by suitably qualified personnel only.
Reprinting, distribution, reproduction, exploitation in any form or disclosure of the contents of this document, even in part, is prohibited without our express, written approval and indication of the source. The schematic illustrations, pictures and descriptions serve only for the purposes of explanation and representation of the instructions and cannot be used as a basis for installation or assembly work. All rights reserved.
Not helpful at all
Very helpful