Comprehensive Component Rationality Monitor
OBD System Description - Comprehensive Component Rationality MonitorMonitoring Procedure
Input signal of MAF (P0101), IAT (P0111), ECT (P0116, P0125), TP (P0121), CKP (P0335), CMP (P0340), Fuel level sensor (P0461, P0462, P0463, P0464), VSS (P0500), ECM internal circuit/memory (P0601, P0607, P0630, P1510), Starter (P0616, P0617), MAP (P1107, P1108), Barometric pressure sensor (P2227) 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 Range / Performance. P0101
P0111
Refer to DTC P0111: Intake Air Temperature Circuit Range / Performance. P0111
P0116
Refer to DTC P0116: Engine Coolant Temperature Circuit Range / Performance. P0116
P0121
Refer to DTC P0121: Throttle Position Sensor Circuit Range / Performance. P0121
P0125
Refer to DTC P0125: Insufficient Coolant Temperature for Closed Loop Fuel Control. P0125
P0335
Refer to DTC P0335: Crankshaft Position Sensor Circuit. P0335
P0340
Refer to DTC P0340: Camshaft Position Sensor Circuit. P0340
P0461
Refer to DTC P0461: Fuel Level Sensor Circuit Range / Performance. P0461
P0462, P0463
Refer to DTC P0101: Mass Air Flow Circuit Range / Performance. P0462
P0464
Refer to DTC P0464: Fuel Level Sensor Circuit Intermittent. P0464
P0500
Refer to DTC P0500: Vehicle Speed Sensor. P0500
P0601, P0607
Refer to DTC P0601 / P0602 / P0607: Internal Control Module Memory Check Sum Error / Control Module Programming Error / Control Module Performance. P0601
P0630
Refer to DTC P0630: VIN Not Programmed or Incompatible-ECM. P0630
P1510
Refer to DTC P1510: ECM Back-Up Power Supply Malfunction. P1510
P0616
Refer to DTC P0616: Starter Relay Circuit Low. P0616
P0617
Refer to DTC P0617: Starter Relay Circuit High. P0617
P1107
Refer to DTC P1107: Manifold Absolute Pressure Circuit Range / Performance Low. P1107
P1108
Refer to DTC P1108: Manifold Absolute Pressure Circuit Range / Performance High. P1108
P2227
Refer to DTC P2227 / P2228 / P2229: Barometric Pressure Circuit Range Performance / Low / High. P2227
Operation:
Enable Condition:
Typical Malfunction Thresholds:
MAF Sensor Rationality Monitor
Operation:
Enable Condition:
Typical Malfunction Thresholds:
IAT Sensor Rationality Monitor
Operation:
Enable Condition:
Typical Malfunction Thresholds:
ECT Sensor Rationality Monitor
Operation:
Enable Condition:
Typical Malfunction Thresholds:
TP Sensor Rationality Monitor
Operation:
Enable Condition:
Typical Malfunction Thresholds:
Fuel Level Sensor Rationality Monitor
Operation:
Enable Condition:
Typical Malfunction Thresholds:
VSS Rationality Monitor
Operation:
Enable Condition:
Typical Malfunction Thresholds:
Starter Relay Rationality Monitor
Operation:
Enable Condition:
Typical Malfunction Thresholds:
MAP Sensor Rationality Monitor
Operation:
Enable Condition:
Typical Malfunction Thresholds:
Barometric Pressure Sensor Rationality Monitor
Operation:
Enable Condition:
Typical Malfunction Thresholds:
CKP Sensor Rationality Monitor
Operation:
Enable Condition:
Typical Malfunction Thresholds:
CMP Sensor Rationality Monitor
Operation:
Enable Condition:
Typical Malfunction Thresholds:
ECM Internal Circuit/Memory Monitor