C-Max 16TDci Ignition switch no power
Ford C-Max 16Tdci Year 2005
This has been a trouble free car over the past 11 years until now that is.
After I finished work today I tried to start the car and had three fault lights
Come up on the right side of the dash, Top one is the ESP a yellow light looks
Like a car going into a skid the middle one is the engine management light
and the bottom one is yellow with a coil like motive I believe this is the Glow
lamp fault light. I performed a fault diagnoses with the ODB 2 cable and laptop
and this fault comes up “P1632 smart alternator faults sensor”
These lights stay on and when I turn the ignition key there is nothing no click no
Noise no power, but all the electrics work lights, windows, stereo and fans. After
About the fifth try the lights went out and the car started I drove it home switched it
Off and was then presented with the same problem. I cannot understand why there
is no power what so ever no click from the starter absolutely nothing I then done
the diagnostic check which came up with the same two faults and after 4 or 5 attempts
it fired up again the fault lights had gone but are now back again.
Please can you advise on this matter intermittent electrical problems can work out to be
Quite expensive any help would be appreciated thank you. I have now found out that the smart
Charging system is also connected to the coolant sensor I connected the cooling fan straight to the battery and found it’s not working. The car started OK run it up for about 30 mins turned it off and the faults are back but only the P1632 is showing on the laptop c-max battery is showing a charge of 14.4 Volts when engine is running.
I have come to the conclusion that its heat related, the Haynes manual
Advised to check the cooling fan with a direct current from the battery.
Is it possible that the heat sensor is also fried and would these two faults prevent complete power
Loss at the ignition switch.
Last edited by welshexport63; 14-06-2016 at 08:59 AM.