Help needed: Fault Code 247 (FRAM failed)???

[Granturadriver]

The display shows

FRAM failed 247 ????

What does that mean? I could not find that code in the list below (taken from here), which includes the code 147 "Stepper FRAM failed" but the display is showing "247" ??

Warning Codes:

Oil_P_Under_Min =0x01 =1
Oil_P_Over_Max =0x02 =2
Oil_P_Lamp_On =0x03 =3
EFI_MIL_Lamp_On =0x04 =4
Water_T_Over_Max =0x05 =5
Oil_T_Over_Max =0x06 =6
Battery_Over_Max =0x07 =7
Alternator_Lamp_On =0x08 =8
Inertia_Lamp_On =0x09 =9
Battery_Under_Min =0x0a =10
Fuel_L_Under_Min =0x0b =11
Air_T_Under_Min =0x0c =12
Brake_Fluid_Lamp_On =0x0d =13
RH_Door_Lamp_On =0x0e =14
LH_Door_Lamp_On =0x0f =15
Light left on =0x10 =16
No seat belt =0x11 =17
Gear_T_Over_Max =0x12 =18
Diff_T_Over_Max =0x13 =19
Low_Fuel_Pressure =0x14 =20
High_Fuel_Pressure =0x15 =21

Fault Codes:

Water sensor =0x80 =128
Oil temp sensor =0x81 =129
Oil pressure sensor =0x82 =130
Fuel level sensor =0x83 =131
Air temp sensor =0x84 =132
Speedo zero =0x85 =133
Tacho zero =0x86 =134
Heater controls =0x87 =135
Heater flap zero =0x88 =136
Aircon Fault =0x89 =137
Gear_T_Sensor_Fault =0x8a =138
Diff_T_Sensor_Fault =0x8b =139
Fuel_P_Sensor_Fault =0x8c =140
Brake Fluid Sw.fault =0x8d =141

Power supply control =0x90 =144
Display FRAM failed =0x91 =145
Display FRAM corrupt =0x92 =146
Stepper FRAM failed =0x93 =147
Stepper FRAM corrupt =0x94 =148
Time clock failed =0x95 =149
Time clock corrupt =0x96 =150
Inter uP comms failed =0x97 =151
System initiation =0x98 =152
software invalid =0x99 =153
display switches fault =0x9a =154

[shep1001]

FRAM - Ferroelectric Random Access Memory. When I had a 'FRAM fault' all it needed was a new coin cell battery in the dash ECU. Be very careful when changing it as you can damage it which costs ££££ to repair. You might be unlucky and its not the battery and it needs to go away for a re-program at somewhere like TVR Power et al as the software is corrupt.

Stepper would seem to suggest it has something to do with the Speedo/tacho needles as they have a stepper motor on them?

Shep

Edited by shep1001 on Monday 8th August 09:59

[Granturadriver]

thanks Shep!

What does the FRAM control, just the dash or any engine management like the ECU?

[shep1001]

Granturadriver said:

thanks Shep!

What does the FRAM control, just the dash or any engine management like the ECU?

When mine gave the error, it was the clock and POD settings that would revert back to standard. I don't think there are any engine ECU issues just the clock pack and digital display data

Shep

[madbadger]

shep1001 said:

Granturadriver said:

thanks Shep!

What does the FRAM control, just the dash or any engine management like the ECU?

When mine gave the error, it was the clock and POD settings that would revert back to standard. I don't think there are any engine ECU issues just the clock pack and digital display data

Shep

I'm permanently getting "Error 250 - Clock is fked." It reads 67 o'clock. Doesn't seem to affect anything else.

I wonder if error 248 and 249 are clock faults too?

[Granturadriver]

hm, the clock is fine!

After switching on the warning code appears "warning code: 247" and "F-RAM failed". After clearing with the two buttons behind the wheel the normal menue is displayed. The clocks fine, but the mileage is back to zero; both, trip and total mileage!

All connections of the Dash ECU are fine, the heater ventilator can be switched on and off without any issue.