Comprehensive Component Rationality Monitor

OBD System Description - Comprehensive Component Rationality Monitor

Monitoring Procedure
Input signal of MAF (P0101), IAT (P0111), ECT (P0116, P0125), TP (P0121), CKP (P0335), CMP (P0340), Fuel level sensor (P0461), VSS (P0500), ECM internal circuit / memory / power supply (P0601, P0607, P0630, P1510, P2504), Starter (P0616, P0617), MAP (P1107, P1108), Barometric pressure sensor (P2227) and CAN communication (U0001) are checked for circuit rationality by monitoring each sensor and vehicle condition.

DTC Description / Detecting Condition / Confirmation Procedure

P0101
Refer to DTC P0101: Mass Air Flow Circuit Performance. P0101

P0107, P0108
Refer to DTC P0107 / P0108: Manifold Absolute Pressure Circuit Low Input / High Input. P0107 P0108

P0111
Refer to DTC P0111: Intake Air Temperature Sensor Circuit Performance. P0111

P0116
Refer to DTC P0116: Engine Coolant Temperature Circuit Performance. P0116

P0125
Refer to DTC P0125: Insufficient Coolant Temperature for Closed Loop Fuel Control. P0125

P0121
Refer to DTC P0121: Throttle Position Sensor Circuit Performance. P0121

P0461
Refer to DTC P0461: Fuel Level Sensor Circuit Performance. P0461

P0500
Refer to DTC P0500: Vehicle Speed Sensor. P0500

P2227
Refer to DTC P2227: Barometric Pressure Circuit Performance. P2227

P0335
Refer to DTC P0335: Crankshaft Position Sensor Circuit. P0335

P0340
Refer to DTC P0340: Camshaft Position Sensor Circuit. P0340

P0616
Refer to DTC P0616: Starter Relay Circuit Low. P0616

P0617
Refer to DTC P0617: Starter Relay Circuit High. P0617

P0601, P602, P607
Refer to DTC P0601 / P0602 / P0607: Internal Control Module Memory Check Sum Error / Control Module Programming Error / Control Module Performance. P0601 P0602 P0607

P0630
Refer to DTC P0630: VIN Not Programmed or Incompatible-ECM/PCM. P0630

P1510
Refer to DTC P1510: ECM Back-Up Power Circuit Low. P1510

P2504
Refer to DTC P2504: Charging System Voltage High.

U0001
Refer to DTC U0001: High Speed CAN Communication Bus. U Code Charts