DTC Description / Detecting Condition / Confirmation Procedure
WARNING: This page is about a different car, the 2008 Suzuki Grand Vitara. However, it is still accessible from the selected car via links, so may be relevant.
P0401, P0402
Refer to DTC P0401 / P0402: EXHAUST GAS RECIRCULATION FLOW INSUFFICIENT DETECTED / EXCESSIVE DETECTED .
P0403
Refer to DTC P0403: EXHAUST GAS RECIRCULATION CONTROL CIRCUIT .