Cruise control not working.


Created: 29. 07. 2008
Updated: --. --. ----

Model:
Peugeot 307 T6, TU5JP4 (NFU), ME7.4.4, CAN-CAN. Cruise control with speed limiter.

Problem:
Cruise control does not work. Speed limiter is OK.

Diagnosis
2 permanent DTC in the engine ECU.
1. Remote intermittent fault. Stop lamp information. P1536
2. Cruise control/speed limiter (RVV/LVV coherence) P0571

Cause
High resistance in the brake pedal switch.
In this case 6 Ω between pin 1 and 2 with the contacts closed.
The theoretical resistance should be 0 Ω.
The brake switch is pictured below.

Image:
Below, showing the internal contacts.

Solution:
Replacement of the brake switch.


Technical information by
peugeotlogic.com