Citroen Evasion/ Synergie - Engine diagnostic lamp is lit | HELLA
Citroen
Evasion/ Synergie
2.1 Turbo-Diesel
Engine P8C
Engine is losing power, engine diagnostic lamp is lit.
If the engine diagnostic lamp signals that the engine is losing power, this may be caused by the brake-light switch being wrongly positioned or incorrectly attached. It is possible that excessive tolerance may enable the switch to shift within its support, with the effect that the electronic control unit receives “acceleration” and “braking” information simultaneously. Since it is unable to process both of these simultaneously, it causes the engine to carry out a kind of “emergency running function”.
In this situation you need to correct the position and attachment of the brake-light switch. Please do this by following the disassembly and reassembly instructions from the vehicle manufacturer.
Check brake-pedal switch: (see Figure1).
1 & 2 (ballpark figure brake pedal released) ∞Ω
1 & 2 (ballpark figure brake pedal depressed) 0Ω
Figure 1.
.
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.
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