Diagnostic Trouble Code 32 (P0400)

EGR Test:

EGR FUNCTION (DTC: P0400)
Instead of performing DTC DETECTING CONDITION, the following method can be used for checking the EGR function. (The "NG" of the OVERALL FUNCTION CHECK means the same as the DTC detection.)
Before starting with the following procedure, check the engine coolant temperature of the freeze frame data with CONSULT or Generic Scan Tool.
If the engine coolant temperature is higher than or equal to 60°C (140°F), perform only "For malfunction (a)".
If the engine coolant temperature is lower than 60°C (140°F), perform both "For the malfunction (a) and "For malfunction (b)".

For malfunction (a)
There is NO GST test for malfunction (a). Either use the "CONSULT" procedure or "Diagnosis Without Consult or Generic Scantool" procedure.

For malfunction (b)
1) Confirm the engine coolant temperature is lower than 60°C (140°F) in "Mode 1" with GST. Perform the following steps before its temperature becomes higher than 60°C (140°F).
2) Start engine.
3) Check for the EGR valve lifting when racing up to 2,000 rpm through 4,000 rpm under no load.
EGR valve should be closed and should not lift up.