MANUFACTURER REFERENCE

Acura code references.

Read the source definition and confirm the exact vehicle, reporting module and diagnostic procedure.

Acura diagnostic guides

Find a guide by code

Acura MDX and TLX P0430: check software before condemning the catalyst

Acura's documented P0430 software case requires exact vehicle eligibility and transmission-software confirmation.

Acura / Honda

P1106

These are code references, not a list of confirmed faults on every vehicle. Read the source and applicability notes, then match the exact vehicle, year, engine and scan report.

Model documentation

Only models identified by the cited manufacturer material are listed.

MDX

2014–2017

TLX

2015–2018

Acura diagnostic guides

Acura MDX and TLX P0430: check software before condemning the catalyst

BARO Circuit Range Performance Malfunction

BARO Circuit Low Input

BARO Circuit High Input

Throttle Position Lower Than Expected

Throttle Position Higher Than Expected

MAP Lower Than Expected

MAP Higher Than Expected

HO2S11 Circuit Fault Bank 1 Sensor 1

HO2S11 Slow Response Bank 1 Sensor 1

HO2S11 Circuit Fault Bank 1 Sensor 1

HO2S11 Slow Response Bank 1 Sensor 1

HO2S11 Heater Circuit Fault Bank 1 Sensor 1

HO2S11 Heater Circuit VS+ Fault Bank 1 Sensor 1

HO2S11 Label Circuit Low Voltage Fault Bank 1 Sensor 1

HO2S11 Label Circuit High Voltage Fault Bank 1 Sensor 1

Cylinder 1 Misfire

Cylinder 2 Misfire

Cylinder 3 Misfire

Cylinder 4 Misfire

Cylinder 5 Misfire

Cylinder 6 Misfire

Throttle Vent Control Motor Circuit 1 Malfunction

Throttle Vent Control Motor Circuit 2 Malfunction

Throttle Position Insufficient

Closed Throttle Position Insufficient

Accelerator Position Sensor 1 Circuit Malfunction

Accelerator Position Sensor 2 Circuit Malfunction

Accelerator Position Sensors 1 & 2 Improper Correlation

VTEC System Circuit Fault

VTEC System Malfunction Rear Bank 1

VTEC System Malfunction Front Bank 2

ELD Circuit Low Input

Electrical Load Detector Circuit High Voltage

Random Misfire

Cylinder 1 Misfire

Cylinder 2 Misfire

Cylinder 3 Misfire

Cylinder 4 Misfire

Cylinder 5 Misfire

Cylinder 6 Misfire

Spark Plug Voltage Detection Circuit Malfunction Front Bank

Spark Plug Voltage Detection Circuit Malfunction Rear Bank

Spark Plug Voltage Detection Module Reset Circuit Malfunction Front Bank

Spark Plug Voltage Detection Module Reset Circuit Malfunction Rear Bank

Knock Sensor Power Source Circuit Low Voltage

CKP Sensor B Range Performance

CKP Sensor B Low Input

CKP TDC Sensor Circuit Connector Disconnection

TDC Sensor Intermittent Interruption

TDC1 Sensor No Signal

TDC2 Sensor Intermittent

TDC2 Sensor No Signal

CYP Sensor A Intermittent Interruption

CYP Sensor A No Signal

CYP Sensor B Intermittent Interruption

CYP Sensor B No Signal

Evaporative Emission Control System Leak Detected Fuel Tank System

Evaporative Emission Control System Leak Detected Control Canister System

EVAP Purge Flow Switch Malfunction

EGR Valve Lift Insufficient Detected

EGR Valve Lift Sensor High Voltage

IAC Valve Circuit Failure

IAC Valve Circuit Failure

ECM Internal Circuit Failure A

ECM Internal Circuit Failure B

TMA or TMB Signal Line Fault

Automatic Transmission System Malfunction

A/T FI Data Line Failure

A/T FI Data Line No Signal

A/T FI Data Line Failure

Traction Control System FI Data Line No Signal

Traction Control System FI Data Line Failure

FPTDR Signal Line Failure

A/T FI Signal A Low Input

A/T FI Signal A High Input

A/T FI Signal B Low Input

A/T FI Signal B High Input

Traction Control System STB Line Failure