OBD System Description - Comprehensive Component Monitor (AT Output)

OBD System Description - Comprehensive Component Monitor (AT Output)

DTC Description / Detecting Condition / Confirmation Procedure

P0741, P0742

Refer to P0741 DTC P0741 / P0742 (No.28): TCC Circuit Performance or Stuck OFF / Stuck ON.

P0743

Refer to P0743 DTC P0743 (No.25 or 26): TCC System Electrical.

P0748

Refer to P0748 DTC P0748 (No.41 or 42): Pressure Control Solenoid Electrical.

P0751, P0752, P0756, P0757

Refer to P0751 DTC P0751 / P0752 / P0756 / P0757 (No.17 / No.17 / No.28 / No.28): Shift Solenoid-A (No.1) Performance or Stuck OFF / Shift Solenoid-A (No.1) Stuck ON / Shift Solenoid-B (No.2) Performance or Stuck OFF / Shift Solenoid-B (No.2) Stuck ON.

P0753, P0758

Refer to P0753 DTC P0753 / P0758 (No.21 or 22 / No.23 or 24): Shift Solenoid-A (No.1) / -B (No.2) Electrical.

TCC Solenoid Circuit Monitor

Operation





Enable condition





Typical malfunction thresholds






Pressure Control Solenoid Circuit Monitor

Operation





Enable condition





Typical malfunction thresholds






Shift Solenoid #1 Circuit Monitor

Operation





Enable condition





Typical malfunction thresholds






Shift Solenoid #2 Circuit Monitor

Operation





Enable condition





Typical malfunction thresholds






TCC Solenoid Rationality Monitor

Monitoring procedure

TCM (PCM) monitors operation (engagement condition) of TCC in response to ON/OFF command to the TCC solenoid using input and output speed sensor signals.

Operation





Enable condition





Typical malfunction thresholds






Shift Solenoid #1 Rationality Monitor

Monitoring procedure

TCM (PCM) calculates the actual transmission gear ratio from input and output speed sensor signals and monitor it. TCM (PCM) detects a trouble when the actual transmission gear ratio is not equal to the ratio of each gear as commanded by TCM (PCM).

Operation





Enable condition





Typical malfunction thresholds






Shift Solenoid #2 Rationality Monitor

Monitoring procedure

TCM (PCM) calculates the actual transmission gear ratio from input and output speed sensor signals and monitor it. TCM (PCM) detects a trouble when the actual transmission gear ratio is not equal to the ratio of each gear as commanded by TCM (PCM).

Operation





Enable condition





Typical malfunction thresholds