TT 93-12-01

Tech Tips
Date: October 26, 2012
TT 93-12-01
2013 Jetta Hybrid – Drive Motor Position Not Learned, Fault
P0C4E
The drive motor position will need to be relearned after DTC codes have been cleared, battery has been
disconnected or a recharge of the 12 volt battery has taken place. The VAS PC and ODIS programs will
have the technician perform this task at the end of diagnostics and module fault code erasing. This can
also be accomplished without the need for a scan tool if this recalibration procedure is followed after a
battery disconnect, recharging of a low 12V battery or code clearing with a generic scan tool.
Rotor Position Sensor Offset Angle Adaptation
Required Action
Outcome
CAN bus and ECU's activated
K0 is disengaged
Switch On Ignition (Terminal 15)
Electric Machine rotates
Sensor Learns
Adaption is recorded
Switch Off
K0 is engaged
Press brake pedal
Start Engine with Kessy/Key
ON
With K0 engaged, EM rotates and drags
combustion engine
Fuel Injection is activated
Most technicians familiar with Volkswagens push button start vehicles will automatically apply the brake
pedal when attempting to start the vehicle. If this is done before the Drive Motor Position is learned, a fault
code will set (P0C4E – Drive Motor Position Not Learned) and the engine will not start. Simply erase the
fault and follow the above steps.
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