How to Read Codes on 1999 Toyota Camry

Hardlymoving writes almost do-it-yourself automobile maintenance on various makes and models.

Camry OBDII Input Port

Under Driver's Side Dash

Where Mistake Codes Come From

This article will address the most common mistake or "fault" codes that trigger the illumination of the "Bank check Engine" light on the iv-cylinder Camry.

All modern automobile engines are managed by an on-board computer, ordinarily called an Electronic Control Module (ECM) or Powertrain Control Module (PCM). The PCM controls both the engine and the transmission. It generates the error codes or fault codes nosotros talk nigh here.

Electric inputs get to the PCM from sensors located throughout the engine compartment. The PCM processes the inputs (in milliseconds) and sends electrical signals (voltage) to electronically controlled valves and relays to make the engine deport in a predictable manner. When all of these engine control devices are working in harmony with the PCM, the fuel economy, emissions and overall drive-power of the Camry perform at optimum levels.

When the PCM expects electric input signals from the sensors but doesn't receive them, doesn't receive them fast enough, or doesn't receive them in the voltage range it expects, the PCM generates a fault code and stores information technology. The yellow "Check Engine" light comes on to inform the commuter of the Camry about the error.

If multiple output sensors fail, the various fault codes volition accrue in the PCM until the problem has been identified and fixed and the error lawmaking(s) erased.

As well sensor failures, the failure of input command valves and relays (which go PCM instruction information via electrical current) volition generate fault codes as well.

At that place are both generic and vehicle-specific error codes. Generic fault codes are common to all vehicles that use the OBDII (On-lath Diagnosis Version Two) arrangement based on SAE (Club of Automotive Engineers) and Federal EPA standards. Vehicle-specific codes are additional codes added by the automobile manufacturer to address specific vehicle functions not common with other vehicle makes and models.

Common Sensors That Give Input to the ECM

• Oxygen Sensor (O₂) (at least two)
• Crankshaft Position Sensor
• Camshaft Position Sensor
• Air/Fuel Sensor (in California cars it replaces one of the O₂ sensors)
• Engine Coolant Temperature Sensor
• Intake Air Temperature Sensor
• Throttle Position Sensor
• Manifold Accented Pressure Sensor
• Vehicle Speed Sensor
• Frazzle Gas Recirculation Valve Position Sensor
• Power Steering Pressure Switch
• Transaxle Sensors

Mutual Valves, Sensors and Devices That Receive Output From the ECM

• Ignition Coils
• Fuel Injectors
• Idle Air Control Valve
• EVAP Vacuum Switching Valve
• Vapor Force per unit area Sensor

Camry ODBII Port Location

ODBII Interface Port Location underneath the console below the steering column.

5 Problems That Normally Cause Fault Codes in the Camry

The error codes generated by the OBDII only point possibilities: a possible problem or set up of problems that requires attention. To place a specific cause, in the absence of some expensive analysis tools, may require component testing as well as trial and error.

Some repair facilities, including dealerships, take the "shotgun" approach—which is to replace every possible item that may have caused the error code to keep. Their focus is to avoid revisiting the trouble and having to bargain with y'all, the customer, more than in one case. In other words, why spend ii hours identifying a problem whose solution might require merely cleaning a role, or replacing a $10 role? However, some of these parts can cost hundreds of dollars.

These are the about common types of fault codes have encountered with the Camry, along with their remedies. In this list, X = a number from 0 through nine.

1. P013X and/or P015X with P113X: The O₂ sensor (Oxygen) or Air/Fuel sensor (California emission cars) has gone bad. O_ii sensors are article of clothing items and practice non last forever. They usually become bad approaching 80,000 miles. Just buy a new i and supplant it. They tin't be cleaned. Going a few months without replacement runs the risk of destroying the catalytic converter. When the ECM gets a weak or inconsistent betoken from the upstream 0_ii sensor (the one before the catalytic conveter), the ECM will send an "enrich fuel" signal command to the fuel injectors then that an overly lean air/fuel mixture won't overheat the engine. Fuel economy volition significantly deteriorate. And when the combustion exhaust gases containing unburned fuel pass into the catalytic converter, the converter will overheat in the procedure of continuously called-for combustible pollutants. In fourth dimension the converter will burn out. When buying a new 02 or Air/Fuel sensor, become Denso or NGK. Bosch sensors don't seem to work well in Hondas simply last a couple of years with Toyotas. The warranty period for most electronic components is xc days to ane year.
2. P044X: Determine if your fuel cap is loose. If that doesn't fix it, and then it'south probably the VSV valve (office of the EVAP organisation) attached to the charcoal canister that has gone bad.
3. P030X: A spark plug or spark plug wire is bad. I've seen wires get bad when wire clips were cleaved off during spark plug replacement. The wire(s) then rest on the hot valve embrace and get slowly destroyed by the rut. In a worst instance scenario, the bank check engine light volition blink continuously; this indicates the auto should be serviced as soon as possible or the catalytic converter will go bad in short order. Multiple P030X or the "Random Cylinder Misfire" code usually indicate a bad whorl pack. Since roll packs are expensive, the ignition wires are a good starting signal for replacement. You can't use the onetime voltage resistance test to test ignition wires that use the new technology.
4. P0420: This may point a bad "downstream" (after the catalytic converter) 02 sensor (which monitors the efficiency of the catalytic converter) or it may mean a bad catalytic converter. Information technology is all guesswork in the absence of an exhaust analysis tool (like what they have at DMV) to determine the efficiency of the converter. Here's a possible fix for the P0420 trouble.
5. P0401 and P0402: This one can be a little tricky. Either the EGR (Exhaust Gas Recirculation) valve requires replacement, or the VSV (Vacuum Switching Valve - EVAP system component) isn't working properly. Replacing the EGR valve (which isn't cheap) may not resolve the problem unless the VSV valve is also replaced. The purpose of the EGR valve is to recycle a modest amount of engine exhaust dorsum into the air/fuel mixture to keep the exhaust temperature from ascent high enough to produce too much of a pollutant called nitrogen oxide. The possible inexpensive solution: mixing 4 ounces of Marvel Mystery Oil with every 10 gallons of fuel may resolve the problem after a few tank fill up-ups.

Read More from AxleAddict

To Purchase or Not to Purchase an OBDII Code Reader

ODBII standards were implemented in 1994 to supplant ODBI. Nosotros don't know of whatsoever ODBIII on the horizon.

OBDII code readers have significantly come up down in price compared to a few years ago. A bones reader to merely extract and reset the code is around $30. A reader that gives the text description accompanying the code is effectually $50. Motorcar dealers charge effectually $l+ for each reading.

Just about automotive retail parts stores will download and reset the lawmaking(s) for you for free. Why have your own reader? Information technology'southward nice to accept your own reader if you intend on owning a motor vehicle for a while, but it'southward like buying a wrench—you don't need to use it all the time.

Once the reader or the parts shop has identified the mistake code, keep the cyberspace to get the error clarification with some possible solutions to investigate.

Sometimes the fault codes are anomalies; after you reset the code, it never comes dorsum on. Simply if the lawmaking quickly reappears, then some maintenance work is in order. In either case, y'all have avoided at to the lowest degree one trip to the dealership, repair shop or parts shop.

One method of resetting fault codes without trying to notice out what the codes were is to disconnect the car's battery . . . if re-inbound your car's radio stations and anti-theft code isn't a hassle.

The Meaning of the Digits in the OBDII Fault Lawmaking

Position	Value	Definition
1	P	Powertrain
two	0, 1	0 = All Manufacturers (generic)
		ane = Specific Manufacturer
3	1	Emission System
	2	Fuel Injector Problem
	3	Engine Misfire / Ignition Problems
	4	Emission Control
	5	Speed and Idle Control
	6	Figurer
	seven	Transmission
	eight	Transmission

Not-Manufacturer-Specific Fault Codes

Code	Description
P0100	Mass airflow (MAF) sensor circuit manfunction
P0101	Mass airflow (MAF) circuit range/performance trouble
P0105	Manifold Absolute Pressure (MAP) sensor circuit malfunction
P0106	Manifold Absolute Pressure (MAP) sensor malfunction
P0110	Intake Air Temperature (IAT) sensor circuit malfunction
P0115	Engine coolant temperature (ECT) sensor circuit malfunction
P0116	Engine coolant temperature circuit range/operation problem
P0120	Throttle/pedal position sensor (TPS) circuit malfunction
P0121	Throttle/pedal position sensor (TPS) range/performance problem
P0125	Bereft coolant temperature for airtight loop fuel control
P0128	Thermostat malfunction
P0130	Heated oxygen sensor circuit malfunction (bank i, sensor ane)
P0133	Heated oxygen sensor slow
P0135	Heated oxygen sensor heater excursion malfunction (bank i, sensor ane)
P0136	Heated oxygen sensor circuit malfunction (banking company 1, sensor ii)
P0141	Heated oxygen sensor heater circuit malfunction (banking concern 1, sensor 2)
P0150	Heated oxygen sensor circuit malfunction (banking company 2, sensor 1)
P0153	Heated oxygen sensor excursion slow response (banking company 2, sensor ane)
P0155	Heated oxygen sensor heater excursion malfunction (bank 2, sensor 1)
P0171	System also lean
P0172	Organisation too rich
P0174	System too lean (air/fuel lean malfunction, banking concern 2)
P0175	System too lean (air/fuel rich malfunction, bank 2)
P0300	Random or multiple cylinder misfire detected
P0301	Cylinder no. i misfire detected
P0302	Cylinder no. 2 misfire detected
P0303	Cylinder no. three misfire detected
P0304	Cylinder no. four misfire detected
P0305	Cylinder no. v misfire detected
P0306	Cylinder no. 6 misfire detected
P0325	Knock sensor 1 circuit malfunction (banking company 1 on V6 Models)
P0330	Knock sensor ii circuit malfunction (bank 2, V6 models only)
P0335	Crankshaft position sensor A circuit malfunction
P0340	Camshaft position sensor excursion malfunction
P0401	EGR bereft flow detected
P0402	EGR excessive menstruum detected
P0420	Catalyst system efficiency below threshold
P0440	EVAP organization malfunction
P0441	EVAP control system - incorrect purge flow
P0442	EVAP arrangement - pocket-sized leak detected
P0446	EVAP system - vent control malfunction
P0450	EVAP system - pressure system malfunction
P0451	EVAP system - pressure sensor range/performance problem
P0500	Vehicle speed sensor malfunction
P0505	Idle control system malfunction

Toyota-Specific Error Codes

Lawmaking	Description
P1100	BARO Sensor Circuit
P1120	Accelerator Pedal Position Sensor Circuit
P1121	Accelerator Pedal Position Sensor Range/Functioning Problem
P1125	Throttle Command Motor Circuit
P1126	Magnetic Clutch Circuit
P1127	ETCS Actuator Power Source Excursion
P1128	Throttle Control Motor Lock
P1129	Electric Throttle Control System
P1130	Air/Fuel Sensor Excursion Range/Functioning(Bank one Sensor 1)
P1133	Air/Fuel Sensor Excursion Response (Bank ane Sensor i)
P1135	Air/Fuel Sensor Heater Circuit Response. (Banking concern 1 Sensor 1)
P1150	Air/Fuel Sensor Circuit Range/Performance. (Bank 1 Sensor two)
P1153	Air/Fuel Sensor Circuit Response. (Bank 1 Sensor ii)
P1155	Air/Fuel Sensor Heater Excursion. (Banking company 1 Sensor two)
P1200	Fuel Pump Relay Circuit
P1300	Igniter Circuit Malfunction - No. 1
P1310	Igniter Circuit Malfunction - No. two
P1335	No Crankshaft Position Sensor Betoken - Engine Running
P1349	VVT System
P1400	Sub-Throttle Position Sensor
P1401	Sub-Throttle Position Sensor Range/Performance Problem
P1405	Turbo Pressure Sensor Circuit
P1406	Turbo Pressure Sensor Range/Functioning Problem
P1410	EGR Valve Position Sensor Circuit Malfunction
P1411	EGR Valve Position Sensor Circuit Range/Performance
P1500	Starter Signal Circuit
P1510	Boost Pressure Command Circuit
P1511	Heave Pressure Depression
P1512	Boost Pressure High
P1520	Stop Lamp Switch Signal Malfunction
P1565	Cruise Control Principal Switch Excursion
P1600	ECM BATT Malfunction
P1605	Knock Control CPU
P1630	Traction Control System
P1633	ECM
P1652	Idle Air Control Valve Control Excursion
P1656	OCV Circuit
P1658	Wastegate Valve Control Circuit
P1661	EGR Circuit
P1662	EGR by-laissez passer Valve Command Circuit
P1780	Park/Neutral Position Switch Malfunction (Only For A/T)

This article is authentic and true to the best of the writer's knowledge. Content is for informational or entertainment purposes only and does not substitute for personal counsel or professional advice in concern, financial, legal, or technical matters.

Questions & Answers

Question: What is code C1300 on a Toyota Camry?

Respond: A a non generic manufacturer's specific lawmaking for a particular model vehicle.

Question: Why does my Camry 2003 model keep vibrating on the move?

Answer: The wheels may need to exist re-balanced.

Question: I got lawmaking p0446 on my 2002 Toyota Solara SLE. How do I set up information technology?

Respond: You need a new evaporator system canister vent command valve.

Question: What is "Code 96" on a Toyota car?

Answer: There is no such thing.

Question: What is 0440 Eva system failure? What reasonable repair cost should I anticipate? Too code P0773? I have a 1999 Toyota with 191K. Timing was done at 120K. Should I consider doing while the engine is apart?

Answer: P0440. The (EVAP) emission control arrangement prevents the escape of fuel vapors from a vehicle's fuel system. Fuel vapors are routed by hoses to a charcoal canister for storage. Afterwards, when the engine is running a purge control valve opens allowing intake vacuum to siphon the fuel vapors into the engine. The EVAP system consists of many parts, including (but not limited to) the gas cap, fuel lines, carbon canister, purge valve, and other hoses. This code will not touch engine functioning but will prevent you from passing DVM emission testing. The cost of repair varies upon what is malfunctioning and the toll of the specific part that needs to exist replaced.

P0773 is a transmission related fault code. The causes could be:

Depression transmission fluid

Dirty manual fluid / filter

Frayed wiring / damaged connectors

Failed solenoid

Failed transmission pump

Pressure blockage

Valve torso issue

TCM or ECU failure

If the transmission fluid contains whatever dirt, sludge or metallic droppings, the solenoids may not part properly. The presence of metal shavings could also betoken internal component failure, which is why checking the ATF level and condition should exist the first step in diagnosing a transmission solenoid fault lawmaking. If the fluid is muddy and pressure blockages are suspected, and so a transmission flush may exist performed.

If there are no obvious maintenance related issues, then the wiring and connectors should be checked for bear witness of damage and/or corrosion. If everything appears fine, so the shift solenoid will need to be tested co-ordinate to the manufacturer's procedure. If no problems have been found by this point, so the trouble could lie with the transmission pump, valve torso, or pressure regulator.

Question: what causes the P0172 - system to rich fault?

Answer: If the upstream o2 sensor is not working properly, the motorcar's ECM will over enrich the mixture to protect the engine until the o2 sensor provides a more reliable signal.

Question: What Coulld Be The Trouble Why My Lexus 300 Speedometer Refuse To Move?

Respond: Check out the speed sensor.

Question: How do I fix a code p0057?

Respond: Change your bank 2 oxygen sensor.

Question: Where is the second nox sensor?

Answer: Usually under the intake plenum.

Question: What causes ABS and anti-skid lights to illuminate?

Reply: ABS malfunction. Must accept the organization scanned to determine malfunction.

Question: I got a 442 and 446 check engine code. The dealer said it was emission related. Gas cap is ok. Any ideas for me to try?

Answer: VSV (vacuum switch valve) ... charcoal canister ... vacuum tube lines ...

Question: Is a 2001 Solara with an fault lawmaking of P1130 an like shooting fish in a barrel set?

Answer: Yes. Clean or replace the MAF (Mass Air Catamenia) sensor.

Question: What exactly does code P0171 hateful on my 2009 Camry?

Answer: Your air/fuel mixture is too lean. You've got a air vacuum leak somewhere. Bank check your air intake hose for cracks and rubber vacuum links for leaks.

Question: Working with a 2000 Toyota Solara that'southward giving these codes: p-1130, p-1135,p-1150 &p-0125 any suggestions?

Reply: Upstream O2 (or air fuel ratio) sensor(s) not working.

Question: I take a 2008 Toyota Camry getting code p0335. Put a new sensor in it, but still getting p0335. How do I fix it?

Respond: Sounds like you have a bad crankshaft position sensor.

Question: I'yard getting a P0121 fault. What tin can I practice to remedy this problem?

Answer: Supervene upon your throttle position sensor on your throttle trunk or cheque the electrical fitting.

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