Volvo Owners Club Forum - View Single Post - Engine: B5244:

Chris_Rogers · Nov 20th, 2008, 11:59

P2121 Throttle/Pedal Position Sensor/Switch “D” Circuit
Range/Performance

P2120 Throttle/Pedal Position Sensor/Switch “D” Circuit

P2138 Throttle/Pedal Position Sensor/Switch “D”/”E” Voltage
Correlation

I'm a bit puzzled why you replaced the AC compressor.

All these codes could relate to the throttle body (which contains the throttle positions sensors) or the throttle pedal module (which contains the pedal postion sensors).

I would suggest you have the Volvo codes read at a dealer to confirm which it is, budget for a throttle pedal or an ETM, have a look at the ETM forum.
I don't think there are any more free replacements.

Nov 20th, 2008, 11:59	#4
Chris_Rogers VOC Member Last Online: Apr 10th, 2017 16:55 Join Date: Jan 1970 Location: South Kent Coast	P2121 Throttle/Pedal Position Sensor/Switch “D” Circuit Range/Performance P2120 Throttle/Pedal Position Sensor/Switch “D” Circuit P2138 Throttle/Pedal Position Sensor/Switch “D”/”E” Voltage Correlation I'm a bit puzzled why you replaced the AC compressor. All these codes could relate to the throttle body (which contains the throttle positions sensors) or the throttle pedal module (which contains the pedal postion sensors). I would suggest you have the Volvo codes read at a dealer to confirm which it is, budget for a throttle pedal or an ETM, have a look at the ETM forum. I don't think there are any more free replacements.