Comprehensive Component (Rationality) Monitor

OBD System Description - Comprehensive Component Rationality Monitor

Monitoring Procedure
Input signal of MAF (P0101), IAT (P0111), ECT (P0116, P0125), CKP (P0335, P0336), CMP (P0340, P0341), Fuel level sensor (P0461, P0462, P0463, P0464), VSS (P0500), ECM internal circuit / memory (P0560, P0601, P0607, P0630), Starter (P0616, P0617), MAP (P1107, P1108), Throttle actuator (P2101, P2119), TP (P2135), APP (P2138), Barometric pressure sensor (P2227), CAN communication (U0101, U0121) 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.

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

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

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

P0335
Refer to DTC P0335: Crankshaft Position Sensor Circuit.

P0336
Refer to DTC P0336: Crankshaft Position Sensor Circuit Range / Performance.

P0340
Refer to DTC P0340: Camshaft Position Sensor Circuit.

P0341
Refer to DTC P0341: Camshaft Position Sensor Circuit Range / Performance.

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

P0462, P0463
Refer to DTC P0462 / P0463: Fuel Level Sensor Circuit Low / High.

P0464
Refer to DTC P0464: Fuel Level Sensor Circuit Intermittent.

P0500
Refer to DTC P0500: Vehicle Speed Sensor.

P0560
Refer to DTC P0560 / P1510: System Voltage / ECM Back-Up Power Supply Malfunction.

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

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

P0616, P0617
Refer to DTC P0616 / P0617: Starter Relay Circuit Low / High.

P1107, P1108
Refer to DTC P1107 / P1108: Manifold Absolute Pressure Sensor Rationality Check - Low / High.

P2101
Refer to DTC P2101: Throttle Actuator Control Motor Circuit Range / Performance.

P2119
Refer to DTC P2119: Throttle Actuator Control Throttle Body Range / Performance.

2135
Refer to DTC P2135: Throttle Position Sensor (Main / Sub) Voltage Correction.

P2138
Refer to DTC P2138: Pedal Position Sensor (Main / Sub) Voltage Correction.

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

U0101
Refer to DTC U0101: Lost Communication with TCM.

U0121
Refer to DTC U0121: Lost Communication with ABS / Electronic Stability Program Control Module.

MAP Sensor Rationality Monitor

MAP Sensor Rationality Monitor:

Enable Conditions:

Typical Malfunction Thresholds:

MAF Sensor Rationality Monitor

MAF Sensor Rationality Monitor:

Enable Conditions:

Typical Malfunction Thresholds:

IAT Sensor Rationality Monitor

IAT Sensor Rationality Monitor:

Enable Conditions:

Typical Malfunction Thresholds:

ECT Sensor Rationality Monitor

ECT Sensor Rationality Monitor:

Enable Conditions:

Typical Malfunction Thresholds:

TP Sensor Rationality Monitor

TP Sensor Rationality Monitor:

Enable Conditions:

Typical Malfunction Thresholds:

Fuel Level Sensor Rationality Monitor

Fuel Level Sensor Rationality Monitor:

Enable Conditions:

Typical Malfunction Thresholds:

VSS Rationality Monitor

VSS Rationality Monitor:

Enable Conditions:

Typical Malfunction Thresholds:

Barometric pressure sensor rationality monitor

Barometric pressure sensor rationality monitor:

Enable Conditions:

Typical Malfunction Thresholds:

CKP Sensor Rationality Monitor

CKP Sensor Rationality Monitor:

Enable Conditions:

Typical Malfunction Thresholds:

CMP Sensor Rationality Monitor

CMP Sensor Rationality Monitor:

Enable Conditions:

Typical Malfunction Thresholds:

Starter signal circuit monitor

Starter signal circuit monitor:

Enable Conditions:

Typical Malfunction Thresholds:

ECM internal circuit / memory monitor

ECM internal circuit/memory monitor:

Enable Conditions:

Typical Malfunction Thresholds:

Throttle Actuator Rational Monitor

Throttle Actuator Rational Monitor:

Enable Conditions:

Typical Malfunction Thresholds:

APP Sensor Rationality Monitor

APP Sensor Rationality Monitor:

Enable Conditions:

Typical Malfunction Thresholds:

CAN Communication Signal Circuit Rationality Monitor

CAN Communication Signal Circuit Rationality Monitor:

Enable Conditions:

Typical Malfunction Thresholds: