Mbasie

To RX in NC

Thanks for the feedback - I obviously don't check this site very often. Mine was bought used - no such manufacturer's warranty. I did purchase some extended warranty through the 'non-lexus' dealership I bought the vehicle from so I think I'll look into that although I have a feeling this will be classified as wear & tear just so they don't cover the costs... Thanks anyway.

To RX in NC

Thanks for the feedback - sounds like you've experienced this before. My local Lexus dealer just quoted $375 + tax for parts and labor. Does this seem fair? What rates have you been quoted for this?

I'll rephrase - can anyone tell me 'in English' what the phrase 'Air/Fuel Ratio Sensor Heater Circuit Malfunction (Bank 1 Sensor 1)" means? I don't need the list of codes etc - just what work needs to be done, any ideas on cost and whether or not this should be regarded as critical...

Does anyone know what this really means?

"P1135  - Air/Fuel Ratio Sensor Heater Circuit Malfunction (Bank 1 Sensor 1)"

what part needs to be purchased? Can this be ignored?

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P0100

MAF Malfunction

P0101

MAF Circuit Range/Performance

P0110

IAT Circuit Malfunction

P0115

ECT Circuit Malfunction

P0116

ECT Circuit Range/Performance

P0120

TP Position Sensor/Switch ‘‘A’’ Circuit Malfunction

P0121

TP Position Sensor/Switch ‘‘A’’ Circuit Range/Performance

P0125

Insufficient Coolant Temperature For Closed Loop Fuel Control

P0130

HO2S Circuit Malfunction, Bank 1 Sensor 1

P0133

HO2S Circuit Slow Response, Bank 1 Sensor 1

P0135

HO2S Heater Circuit Malfunction, Bank 1 Sensor 1

P0136

HO2S Circuit Malfunction, Bank 1 Sensor 2

P0141

HO2S Heater Circuit Malfunction, Bank 1 Sensor 2

P0150

HO2S Circuit Malfunction, Bank 2 Sensor 1

P0153

HO2S Circuit Slow Response, Bank 2 Sensor 1

P0155

HO2S Heater Circuit Malfunction, Bank 2 Sensor 1

P0156

HO2S Sensor Circuit Malfunction, Bank 2 Sensor 2

P0161

HO2S Heater Circuit Malfunction, Bank 2 Sensor 2

P0170

Fuel Trim Malfunction

P0171

System Too Lean (Fuel Trim)

P0172

System Too Rich (Fuel Trim)

P0174

System Too Lean (A/F Lean Malfunction, Bank 2)

P0175

System Too Rich (A/F Rich Malfunction, Bank 2)

P0300

Random Misfire Detected

P0301

Misfire Detected, Cylinder 1

P0302

Misfire Detected, Cylinder 2

P0303

Misfire Detected, Cylinder 3

P0304

Misfire Detected, Cylinder 4

P0305

Misfire Detected, Cylinder 5

P0306

Misfire Detected, Cylinder 6

P0307

Misfire Detected, Cylinder 7

P0308

Misfire Detected, Cylinder 8

P0325

KS 1 Circuit Malfunction

P0330

KS 2 Circuit Malfunction

P0335

CKP Sensor ‘‘A’’ Circuit Malfunction

P0340

CMP Circuit Malfunction

P0385

CKP Sensor ‘‘B’’ Circuit Malfunction

P0401

EGR Insufficient Flow

P0402

EGR Excessive Flow

P0403

EGR Circuit Malfunction

P0420

Catalyst System Efficiency Below Threshold Bank 1

P0430

Catalyst System Efficiency Below Threshold Bank 2

P0440

EVAP Emission Control System Malfunction

P0441

EVAP Emission Control System Improper Purge Flow

P0446

EVAP Emission Control System Vent Control Malfunction

P0450

EVAP Emission Control System Pressure Switch Malfunction

P0451

EVAP Control System Pressure Sensor Range/Performance

P0500

VSS Malfunction

P0505

Idle Control System Malfunction

P0510

Closed TP Switch Malfunction

P0550

Power Steering Pressure Sensor Circuit Malfunction

P1100

BARO Sensor Circuit Malfunction

P1120

Accelerator Pedal Position Sensor Circuit Malfunction

P1121

Accelerator Pedal Position Sensor Range/Performance Problem

P1125

Throttle Control Motor Circuit Malfunction

P1126

Magnetic Clutch Circuit Malfunction

P1127

ECTS Actuator Power Source Circuit Malfunction

P1128

Throttle Control Motor Lock Malfunction

P1129

Electronic Throttle Control System

P1130

Air/Fuel Ratio Sensor Circuit Range/Performance Malfunction (Bank 1 Sensor 1)

P1133

Air/Fuel Ratio Sensor Circuit Response Malfunction (Bank 1 Sensor 1)

P1135

Air/Fuel Ratio Sensor Heater Circuit Malfunction (Bank 1 Sensor 1)

P1150

Air/Fuel Ratio Sensor Circuit Range/Performance Malfunction (Bank 2 Sensor 1)

P1153

Air/Fuel Ratio Sensor Circuit Response Malfunction (Bank 2 Sensor 1)

P1155

Air/Fuel Ratio Sensor Heater Circuit Malfunction (Bank 1 Sensor 1)

P1200

Fuel Pump Relay/ECU Circuit Malfunction

P1300

Igniter Circuit Malfunction (Bank 1 Or No. 1)

P1305

Igniter Circuit Malfunction, (Bank 2 Or No. 2)

P1310

Igniter Circuit Malfunction (No. 3)

P1315

Igniter Circuit Malfunction (No. 4)

P1320

Igniter Circuit Malfunction (No. 5)

P1325

Igniter Circuit Malfunction (No. 6)

P1330

Igniter Circuit Malfunction (No. 7)

P1335

CKP Sensor Circuit Malfunction During Engine Running

P1340

Igniter Circuit Malfunction (No. 8)

P1345

VVT Sensor Circuit Malfunction (Bank 1)

P1346

VVT Sensor Rang/Performance Problem (Bank 1)

P1349

VVT System Malfunction (Bank 1)

P1350

VVT Sensor Circuit Malfunction (Bank 2)

P1351

VVT Sensor Range/Performance Problem (Bank 2)

P1354

VVT System Malfunction (Bank 2)

P1400

Sub-TP Sensor Malfunction

P1401

Sub-TP Sensor Range/Performance

P1410

EGR Valve Position Sensor Circuit Malfunction

P1411

EGR Valve Position Sensor Circuit Range/Performance Malfunction

P1500

Starter Signal Circuit Malfunction

P1520

Stop Lamp Switch Malfunction

P1565

Cruise Control Main Switch Circuit Malfunction

P1566

Cruise Control Main Switch Circuit Malfunction

P1600

ECM BATT Malfunction

P1605

Knock Control CPU Malfunction

P1633

ECM Malfunction (ETCS Circuit)

P1645

Body ECU Malfunction

P1656

OCV Circuit Malfunction (Bank 1)

P1663

OCV Circuit Malfunction (Bank 2)

P1780

PNP Switch Malfunction

B2785

Ignition Switch On Malfunction (Immobilizer System)

B2786

Ignition Switch Off Malfunction (Immobilizer System)

B2785

Ignition Switch On Malfunction (Immobilizer System)

B2791

Key Unlock Warning Switch Malfunction (Immobilizer System)

B2795

Unmatch Key Code (Immobilizer System)

B2796

No Communication In Immobilizer System

B2797

Communication Malfunction No. 1 (Immobilizer System)

B2798

Communication Malfunction No. 2 (Immobilizer System)

←

Does anyone know what this really means?

"P1135 - Air/Fuel Ratio Sensor Heater Circuit Malfunction (Bank 1 Sensor 1)"

what part needs to be purchased? Can this be ignored?