2005 Scion xA AutomaticFACTORY OEM SERVICE PROCEDURE

Diagnostic Trouble Code Table

HINT:

The parameters listed in the table are for reference only. Factors such as instrument type may cause readings to differ slightly from stated values.

If any DTCs are displayed during a check mode DTC check, check the circuit for the DTCs listed in the table below. For details of each DTC, refer to the reference indicated.

*: MIL flashes when a catalyst damaged misfire is detected.

DIAGNOSTIC TROUBLE CODE

DTC No. (Reference) Detection Items Trouble Areas MIL(1) Memory(2)
P0010  Camshaft Position "A" Actuator Circuit (Bank 1)
  • Open or short in Oil Control Valve (OCV) circuit
  • OCV
  • ECM
 o o
P0011  Camshaft Position "A" -Timing
Over-Advanced or System Performance (Bank 1)
  • Engine oil
  • OCV
  • OCV filter
  • Camshaft timing gear assembly
  • ECM
 o o
P0012  Camshaft Position "A" -Timing
Over- Retarded (Bank 1)		 o o
P0016  Crankshaft Position - Camshaft
Position Correlation (Bank 1 Sensor A)
  • Mechanical system (timing chain has jumped tooth or chain stretched)
  • ECM
 o o
P0031  Oxygen Sensor Heater Control
Circuit Low (Bank 1 Sensor 1)
  • Open or short in Heated Oxygen
  • (HO2) sensor heater circuit HO2 sensor heater
  • EFI relay
  • ECM
 o o
P0032  Oxygen Sensor Heater Control
Circuit High (Bank 1 Sensor 1)
  • Short in Heated Oxygen
  • (HO2) sensor heater circuit HO2 sensor heater
  • EFI relay
  • ECM
 o o
P0037  Oxygen Sensor Heater Control
Circuit Low (Bank 1 Sensor 2)
  • Open or short in Heated Oxygen (HO2) sensor heater circuit
  • HO2 sensor heater
  • EFI relay
  • ECM
 o o
P0038  Oxygen Sensor Heater
Control Circuit High (Bank 1 Sensor 2)
  • Short in Heated Oxygen (HO2) sensor heater circuit
  • HO2 sensor heater
  • EFI relay
  • ECM
 o o
P0100  Mass or Volume Air Flow Circuit
  • Open or short in Mass Air Flow (MAF) meter circuit
  • MAF meter
  • ECM
 o o
P0101  Mass or Volume Air Flow Circuit Range/Performance Problem
  • MAF meter
 o o
P0102  Mass or Volume Air Flow Circuit Low Input
  • Open or short in MAF meter circuit
  • MAF meter
  • ECM
 o o
P0103  Mass or Volume Air Flow Circuit High Input
  • Open or short in MAF meter circuit
  • MAF meter
  • ECM
 o o
P0110  Intake Air Temperature Circuit
  • Open or short in Intake Air Temperature (IAT) sensor circuit
  • IAT sensor (built into Mass Air Flow [MAF] meter)
  • ECM
 o o
P0112  Intake Air Temperature Circuit Low Input
  • Short in Intake Air Temperature (IAT) sensor circuit
  • IAT sensor (built into Mass Air Flow [MAF] meter)
  • ECM
 o o
P0113  Intake Air Temperature Circuit
High Input
  • Open in Intake Air Temperature (IAT) sensor circuit
  • IAT sensor (built into Mass Air Flow [MAF] meter)
  • ECM
 o o
P0115  Engine Coolant Temperature Circuit
  • Open or short in Engine Coolant Temperature (ECT) sensor circuit
  • ECT sensor
  • ECM
 o o
P0116  Engine Coolant Temperature Circuit Range/Performance Problem
  • ECT sensor
 o o
P0117  Engine Coolant Temperature Circuit Low Input
  • Short in ECT sensor circuit
  • ECT sensor
  • ECM
 o o
P0118  Engine Coolant Temperature Circuit High Input
  • Open in ECT sensor circuit
  • ECT sensor
  • ECM
 o o
P0120  Throttle/Pedal Position Sensor/
Switch "A" Circuit
  • Throttle Position (TP) sensor
  • ECM
 o o
P0121  Throttle/Pedal Position Sensor/
Switch "A" Circuit Range/Performance Problem
  • TP sensor
 o o
P0122  Throttle/Pedal Position Sensor/ Switch "A" Circuit Low Input
  • TP sensor
  • Short in VTA circuit
  • Open in VC circuit
  • ECM
 o o
P0123  Throttle/Pedal Position Sensor/
Switch "A" Circuit High Input
  • TP sensor
  • Open in VTA circuit
  • Open in E2 circuit
  • Short between VC and VTA circuit
  • ECM
 o o
P0125  Insufficient Coolant Temperature for Closed Loop Fuel Control
  • Cooling system
  • ECT sensor
  • Thermostat
 o o
P0128  Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature)
  • Thermostat
  • Cooling system
  • ECT sensor
  • ECM
 o o
P0130  Oxygen Sensor Circuit (Bank 1 Sensor 1)
  • Open or short in Heated Oxygen (HO2) sensor (bank 1 sensor 1) circuit
  • HO2 sensor (bank 1 sensor 1)
  • HO2 sensor heater (bank 1 sensor 1)
  • EFI relay
  • Air induction system
  • Fuel pressure
  • Injector
  • ECM
 o o
P0133  Oxygen Sensor Circuit Slow Response (Bank 1 Sensor 1)
  • Open or short in Heated Oxygen (HO2) sensor (bank 1 sensor 1) circuit
  • HO2 sensor (bank 1 sensor 1)
  • HO2 sensor heater (bank 1 sensor 1)
  • EFI relay
  • Air induction system
  • Fuel pressure
  • Injector
  • ECM
 o o
P0134  Oxygen Sensor Circuit No Activity Detected (Bank 1 Sensor 1)
  • Open or short in Heated Oxygen (HO2) sensor (bank 1 sensor 1) circuit
  • HO2 sensor (bank 1 sensor 1)
  • HO2 sensor heater (bank 1 sensor 1)
  • EFI relay
  • Air induction system
  • Fuel pressure
  • Injector
  • Gas leakage in exhaust system
  • PCV valve and hose
  • PCV hose connection
  • ECM
 o o
P0136  Oxygen Sensor Circuit Malfunction (Bank 1 Sensor 2)
  • Open or short in Heated Oxygen (HO2) sensor (bank 1 sensor 2) circuit
  • HO2 sensor (bank 1 sensor 2)
  • HO2 sensor heater (bank 1 sensor 2)
  • EFI relay
 o o
P0138  Heated Oxygen Sensor Circuit
High Voltage (Bank 1 Sensor 2)
  • HO2 sensor (bank 1 sensor 2)
  • Short in HO2 sensor (bank 1 sensor 2) circuit
 o o
P0171 (3) System too Lean (Bank 1)
  • Air induction system
  • Injector blockage
  • Mass Air Flow (MAF) meter
  • Engine Coolant Temperature (ECT) sensor
  • Fuel pressure
  • Gas leakage from exhaust system
  • Open or short in HO2 sensor (bank 1 sensor 1) circuit
  • HO2 sensor (bank 1 sensor 1)
  • HO2 sensor heater (bank 1 sensor 1)
  • EFI relay
  • PCV valve and hose
  • PCV hose connections
  • ECM
 o o
P0172 (3) System too Rich (Bank 1)
  • Injector leak, blockage
  • MAF meter
  • ECT sensor
  • Ignition system
  • Fuel pressure
  • Gas leakage from exhaust system
  • Open or short in Heated Oxygen (HO2) sensor (bank 1 sensor 1) circuit
  • HO2 sensor (bank 1 sensor 1)
  • HO2 sensor heater (bank 1 sensor 1)
  • EFI relay
  • ECM
 o o
P0300 (3) Random/Multiple Cylinder Misfire Detected
  • Open or short in engine wire harness
  • Connector connections
  • Vacuum hose connections
  • Ignition system
  • Injector
  • Fuel pressure
  • MAF meter
  • ECT sensor
  • Compression pressure
  • Valve clearance
  • Valve timing
  • PCV hose connections
  • PCV valve and hose
  • ECM
 o/* o
P0301 (3) Cylinder 1 Misfire Detected o/* o
P0302 (3) Cylinder 2 Misfire Detected o/* o
P0303 (3) Cylinder 3 Misfire Detected o/* o
P0304  Cylinder 4 Misfire Detected o/* o
P0325  Knock Sensor 1 Circuit (Bank 1 or Single Sensor)
  • Open or short in knock sensor circuit
  • Knock sensor (under-torqued or loose)
  • ECM
 o o
P0335  Crankshaft Position Sensor "A" Circuit
  • Open or short in Crankshaft Position (CKP) sensor circuit
  • CKP sensor
  • Sensor plate (CKP sensor plate)
  • ECM
 o o
P0339  Crankshaft Position Sensor "A"
Circuit Intermittent
  • Open or short in CKP sensor circuit
  • CKP sensor
  • Sensor plate (CKP sensor plate)
  • ECM
 - o
P0340  Camshaft Position Sensor "A"
Circuit (Bank 1 or Single Sensor)
  • Open or short in Camshaft Position (CMP) sensor circuit
  • CMP sensor
  • Camshaft
  • Timing chain has jumped tooth
  • ECM
 o o
P0341  Camshaft Position Sensor "A"
Circuit Range/Performance (Bank 1 Single Sensor)
  • Open or short in Camshaft Position (CMP) sensor circuit
  • CMP sensor
  • Camshaft
  • Timing chain has jumped a tooth
  • ECM
 o o
P0351 (4) Ignition Coil "A" Primary/Secondary Circuit
  • Ignition system
  • Open or short in IGF or IGT circuit (1 to 4) between ignition coil with igniter and ECM
  • Ignition coils with igniters
  • ECM
 o o
P0352 (4) Ignition Coil "B" Primary/Secondary Circuit
  • Same as DTC P0351
 o o
P0353 (4) Ignition Coil "C" Primary/Secondary Circuit
  • Same as DTC P0351
 o o
P0354 (4) Ignition Coil "D" Primary/Secondary Circuit
  • Same as DTC P0351
 o o
P0420 (3) Catalyst System Efficiency Below Threshold (Bank 1)
  • Gas leakage from exhaust system
  • Heated Oxygen (HO2) sensor (bank 1 sensor 1, 2)
  • Three-Way Catalytic Converter (TWC)
 o o
P0441 (3) Evaporative Emission Control
System Incorrect Purge Flow
  • Vacuum hose cracked, holed, blocked, damaged or disconnected
  • Fuel tank cap incorrectly installed
  • Fuel tank cap cracked or damaged
  • Open or short in vapor pressure sensor circuit
  • Vapor pressure sensor
  • Open or short in VSV for EVAP circuit
  • VSV for EVAP
  • Open or short in VSV for CCV circuit
  • VSV for CCV
  • Fuel tank cracked, holed, or damaged
  • Charcoal canister cracked, holed, or damaged
  • Fuel tank over fill check valve cracked, or damaged
  • ECM
 o o
P0442  Evaporative Emission Control
System Leak detected (small leak)		 o o
P0446 (3) Evaporative Emission Control System Vent Control Malfunction
  • Same as DTC P0441
 o o
P0451  Evaporative Emission Control
System Pressure Sensor/Switch Range/Performance
  • Open or short in vapor pressure sensor circuit
  • Vapor pressure sensor
  • ECM
 o o
P0452  Evaporative Emission Control
System Pressure Sensor/Switch Low Input		 o o
P0453  Evaporative Emission Control System Pressure Sensor/Switch High Input o o
P0456  Evaporative Emission Control System Leak Detected (very small leak)
  • Same as DTC P0442
 o o
P0500  Vehicle Speed Sensor "A"
  • Open or short in speed sensor circuit
  • Vehicle speed sensor
  • Combination meter
  • ECM
  • Skid control ECU
 o o
P0505  Idle Air Control System
  • Open or short in Idle Air Control (IAC) valve circuit
  • IAC valve stuck or closed
  • A/C switch circuit
  • Air induction system
  • PCV valve and hose
  • ECM
 o o
P0511  Idle Air Control Circuit
  • Open or short in Idle Air Control (IAC) valve circuit
  • IAC valve stuck or closed
  • ECM
 o o
P0550  Power Steering Pressure Sensor/Switch Circuit
  • Open or short in power steering pressure sensor circuit
  • Power steering pressure sensor
  • ECM
 o o
P0552  Power Steering Pressure Sensor/Switch Circuit Low Input
  • Open or short in power steering pressure sensor circuit
  • Power steering pressure sensor
  • ECM
 o o
P0553  Power Steering Pressure Sensor/Switch Circuit High Input
  • Open or short in power steering pressure sensor circuit
  • Power steering pressure sensor
  • ECM
 o o
P0560  System Voltage
  • Open in backup power source circuit
  • EFI fuse
  • ECM
 o o
P0606  ECM/PCM Processor
  • ECM
 - -
P0617  Starter Relay Circuit High
  • Short in Park/Neutral Position (PNP) switch circuit (5)
  • PNP switch (5)
  • Clutch start switch (6)
  • ECM
 o o
P0705(5) Transmission Range Sensor Circuit Malfunction (PRNDL Input)
  • Electronic Controlled Automatic Transmission (ECT)
 o o
P0710(5) Transmission Fluid Temperature Sensor "A" circuit
  • Electronic Controlled Automatic Transmission (ECT)
 o o
P0711(5) Transmission Fluid Temperature Sensor "A" Performance
  • Electronic Controlled Automatic Transmission (ECT)
 o o
P0712(5) Transmission Fluid Temperature Sensor "A" Circuit Low Input
  • Electronic Controlled Automatic Transmission (ECT)
 o o
P0713(5) Transmission Fluid Temperature Sensor "A" Circuit High Input
  • Electronic Controlled Automatic Transmission (ECT)
 o o
P0717(5) Input/Turbine Speed Sensor "A" Circuit No Signal
  • Electronic Controlled Automatic Transmission (ECT)
 o o
P0724(5) Brake Switch "B" Circuit High
  • Electronic Controlled Automatic Transmission (ECT)
 o o
P0741(5) Torque Converter Clutch Solenoid Performance (Shift Solenoid Valve SL)
  • Electronic Controlled Automatic Transmission (ECT)
 o o
P0751(5) Shift Solenoid "A" Performance (Shift Solenoid Valve S1)
  • Electronic Controlled Automatic Transmission (ECT)
 o o
P0756(5) Shift Solenoid "B" Performance (Shift Solenoid Valve S2)
  • Electronic Controlled Automatic Transmission (ECT)
 o o
P0787(5) Shift/Timing solenoid Low
  • Electronic Controlled Automatic Transmission (ECT)
 o o
P0788(5) Shift/Timing solenoid High
  • Electronic Controlled Automatic Transmission (ECT)
 o o
P0973(5) Shift Solenoid "A" Control Circuit Low (Shift Solenoid Valve S1)
  • Electronic Controlled Automatic Transmission (ECT)
 o o
P0974(5) Shift Solenoid "A" Control Circuit High (Shift Solenoid Valve S1)
  • Electronic Controlled Automatic Transmission (ECT)
 o o
P0976(5) Shift Solenoid "B" Control Circuit Low (Shift Solenoid Valve S1)
  • Electronic Controlled Automatic Transmission (ECT)
 o o
P0977(5) Shift Solenoid "B" Control Circuit High (Shift Solenoid Valve S1)
  • Electronic Controlled Automatic Transmission (ECT)
 o o
P2195  Oxygen Sensor Signal Stuck Lean (Bank 1 Sensor 1)
  • Open or short in Heated Oxygen (HO2) sensor (bank 1 sensor 1) circuit
  • HO2 sensor (bank 1 sensor 1)
  • HO2 sensor heater (bank 1 sensor 1)
  • EFI relay
  • Air induction system
  • Fuel pressure
  • Injector
  • ECM
 o o
P2196  Oxygen Sensor Signal Stuck Rich (Bank 1 Sensor 1)
  • Same as DTC P2195
 o o
P2716(5) Pressure Control Solenoid "D" Electrical
  • Electronic Controlled Automatic Transmission (ECT)
 o o
P2769(5) DSL Solenoid Circuit Low (Shift Solenoid Valve DSL) o o
P2770(5) DSL Solenoid Circuit High (Shift Solenoid Valve DSL) o o
(1) "O"...MIL (Malfunction Indicator Lamp) is illuminated, "-"...MIL is not illuminated
(2) "O"...DTC is stored in the ECM
(3) MIL is illuminated or blinks
(4) Indicates a malfunction related to the primary circuit
(5) A/T (Automatic Transaxle) only
(6) M/T (Manual Transaxle) only
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Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.

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