P1391 - Not a valid obd code.
B1391 - Oil Level Switch Circuit Failure
C1391 - Not a valid obd code.
U1391 - Not a valid obd code.
Its possible you may have misread this code. If it is B1391 that would be the only code with 1391 for your vehicle.
P0351 - Ignition Coil A Primary / Secondary Circuit Malfunction. The ignition signal from the Powertrain Control Module or Electronic Control Module is sent to and amplified by the power transistor. The power transistor
turns ON and OFF the ignition coil primary circuit. This ON/OFF
operation induces the proper high voltage in the coil secondary circuit.
- Open or short in the ignition coil circuit
- Ignition coil circuit shorted to ground
- Ignition coil connector
- Damaged ignition coil
- Damaged PCM
P0352 - Ignition Coil B Primary / Secondary Circuit Malfunction.
Same repair info as P0351.
P0353 - Ignition Coil C Primary / Secondary Circuit Malfunction.
Same repair info as P0351
- If damage, repair ignition coil circuit
- Replaced ignition coil
PCM or ECM