DTC P0400 Exhaust Gas Recirculation Flow Malfunction
SYSTEM/WIRING DIAGRAM
1. EGR valve
2. Intake manifold
3. Exhaust gas
4. Sensed information
5. ECM (PC)
6. MAP sensor
7. Main fuse
8. Main relay
ENGINE GENERAL INFORMATION AND DIAGNOSIS (H27 ENGINE) 6-1-89