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Engine Control System (2AZ-FE) (Diagnostics - Introduction): Diagnosis Toyota Matrix E140

Testing & Diagnostics 20 illustrations ~4003 words

HOW TO PROCEED WITH TROUBLESHOOTING

HINT

*: Use the Techstream.

  1. VEHICLE BROUGHT TO WORKSHOP NEXT: Go to next step
  2. CUSTOMER PROBLEM ANALYSIS NEXT: Go to next step
  3. CONNECT TECHSTREAM TO DLC3 HINT: If the display indicates a communication fault with the Techstream, inspect the DLC3. NEXT: Go to next step
  4. CHECK DTC AND FREEZE FRAME DATA* HINT: Record or print DTCs and freeze frame data, if necessary. NEXT: Go to next step
  5. CLEAR DTC AND FREEZE FRAME DATA* NEXT: Go to next step
  6. CONDUCT VISUAL INSPECTION NEXT: Go to next step
  7. SET CHECK MODE DIAGNOSIS* NEXT: Go to next step
  8. CONFIRM PROBLEM SYMPTOMS HINT: If the engine does not start, perform step 10 and 12 first. Result Result Proceed to Malfunction does not occur A Malfunction occurs B B --> GO TO STEP 10 A: Go to next step
  9. SIMULATE SYMPTOMS NEXT: Go to next step
  10. CHECK DTC* Result Result Proceed to Trouble code A No code B B --> GO TO STEP 12 A: Go to next step
  11. REFER TO «DIAGNOSTIC TROUBLE CODE CHART»(ref-427311-S27019908472011101200000) DTC CHART NEXT: Go to next step
  12. CONDUCT BASIC INSPECTION Result Result Proceed to Malfunctioning parts not confirmed A Malfunctioning parts confirmed B B --> GO TO STEP 17 A: Go to next step
  13. REFER TO «PROBLEM SYMPTOMS TABLE»(ref-427310-S17806415292011101200000) Result Result Proceed to Malfunctioning circuit confirmed A Malfunctioning parts confirmed B B --> GO TO STEP 17 A: Go to next step
  14. CHECK ECM POWER SOURCE CIRCUIT NEXT: Go to next step
  15. CONDUCT CIRCUIT INSPECTION Result Result Proceed to Malfunction not confirmed A Malfunction confirmed B B --> GO TO STEP 18 A: Go to next step
  16. CHECK FOR INTERMITTENT PROBLEMS NEXT: Go to next step
  17. CONDUCT PARTS INSPECTION NEXT: Go to next step
  18. IDENTIFY PROBLEM NEXT: Go to next step
  19. ADJUST AND/OR REPAIR NEXT: Go to next step
  20. CONDUCT CONFIRMATION TEST NEXT --> END

BASIC INSPECTION

When a malfunction is not confirmed by the DTC check, troubleshooting should be carried out in all circuits considered to be possible causes of the problem. In many cases, by carrying out the basic engine check shown in the following flowchart, the location of the problem can be found quickly and efficiently. Therefore, using this check is essential when engine troubleshooting.

  1. CHECK BATTERY VOLTAGE NOTE: Carry out this check with the engine stopped and the ignition switch off. Result Result Proceed to 11 V or more OK Below 11 V NG NG --> CHARGE OR REPLACE BATTERY OK: Go to next step
  2. CHECK WHETHER ENGINE CRANKS NG --> PROCEED TO «PROBLEM SYMPTOMS TABLE»(ref-427310-S17806415292011101200000) OK: Go to next step
  3. CHECK WHETHER ENGINE STARTS NG --> GO TO STEP 6 OK: Go to next step
  4. CHECK AIR FILTER Visually check that the air filter is not excessively contaminated with dirt or oil. NG --> REPLACE AIR FILTER OK: Go to next step
  5. CHECK IDLE SPEED NG --> TROUBLESHOOT IDLE SPEED AND PROCEED TO NEXT STEP OK: Go to next step
  6. CHECK FUEL PRESSURE NG --> TROUBLESHOOT FUEL PRESSURE AND PROCEED TO NEXT STEP OK: Go to next step
  7. CHECK FOR SPARK NG --> TROUBLESHOOT SPARK AND PROCEED TO NEXT STEP OK --> PROCEED TO «PROBLEM SYMPTOMS TABLE»(ref-427310-S17806415292011101200000)

PROBLEM SYMPTOMS TABLE

HINT

Use the table below to help determine the cause of problem symptom. If multiple suspected areas are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.

SymptomSuspected AreaSee
Engine does not crank (Does not start)Immobilizer systemRefer to PROBLEM SYMPTOMS TABLE
BatteryRefer to ON-VEHICLE INSPECTION
VC output circuitRefer to VC Output Circuit
Starter signal circuitRefer to Starter Signal Circuit
StarterRefer to INSPECTION
No initial combustion (Does not start)ECM power source circuitRefer to ECM Power Source Circuit
Crankshaft position sensorRefer to INSPECTION
Camshaft position sensorRefer to INSPECTION
Ignition systemRefer to ON-VEHICLE INSPECTION
Fuel pump control circuitRefer to Fuel Pump Control Circuit
Fuel injector circuitRefer to Fuel Injector Circuit
Valve timingRefer to INSTALLATION
VC output circuitRefer to VC Output Circuit
Starter signal circuitRefer to Starter Signal Circuit
ECMRefer to REMOVAL
Engine cranks normally but difficult to startFuel pump control circuitRefer to Fuel Pump Control Circuit
Fuel pumpRefer to INSPECTION
Fuel injector circuitRefer to Fuel Injector Circuit
Engine coolant temperature sensorRefer to INSPECTION
Intake systemRefer to ON-VEHICLE INSPECTION
Ignition systemRefer to ON-VEHICLE INSPECTION
Spark plugRefer to ON-VEHICLE INSPECTION - Step 2
Throttle bodyRefer to ON-VEHICLE INSPECTION
CompressionRefer to ON-VEHICLE INSPECTION - Step 9
ECM power source circuitRefer to ECM Power Source Circuit
Incomplete intermittent combustion occurs (Does not start)Fuel pump control circuitRefer to Fuel Pump Control Circuit
Fuel pumpRefer to INSPECTION
Ignition circuitRefer to SYSTEM DIAGRAM
Ignition systemRefer to ON-VEHICLE INSPECTION
Fuel injector circuitRefer to Fuel Injector Circuit
ECM power source circuitRefer to ECM Power Source Circuit
Crankshaft position sensorRefer to INSPECTION
Camshaft position sensorRefer to INSPECTION
Valve timingRefer to INSTALLATION
High engine idle speedThrottle bodyRefer to ON-VEHICLE INSPECTION
Intake systemRefer to ON-VEHICLE INSPECTION
A/C signal circuitRefer to HOW TO PROCEED WITH TROUBLESHOOTING
ECM power source circuitRefer to ECM Power Source Circuit
Engine coolant temperature sensorRefer to INSPECTION
PCV valve and hoseRefer to INSPECTION
Low engine idle speed (Poor idling)Throttle bodyRefer to ON-VEHICLE INSPECTION
A/C signal circuitRefer to HOW TO PROCEED WITH TROUBLESHOOTING
Fuel pump control circuitRefer to Fuel Pump Control Circuit
Fuel pumpRefer to INSPECTION
Intake systemRefer to ON-VEHICLE INSPECTION
PCV valve and hoseRefer to INSPECTION
Rough idlingCompressionRefer to ON-VEHICLE INSPECTION - Step 9
Ignition systemRefer to ON-VEHICLE INSPECTION
Spark plugRefer to ON-VEHICLE INSPECTION - Step 2
Fuel injector circuitRefer to Fuel Injector Circuit
ECM power source circuitRefer to ECM Power Source Circuit
Fuel pump control circuitRefer to Fuel Pump Control Circuit
Fuel pumpRefer to INSPECTION
Throttle bodyRefer to ON-VEHICLE INSPECTION
Intake systemRefer to ON-VEHICLE INSPECTION
PCV valve and hoseRefer to INSPECTION
Air fuel ratio sensorRefer to INSPECTION
Heated oxygen sensorRefer to INSPECTION
Mass air flow meterRefer to ON-VEHICLE INSPECTION
Idle huntingThrottle bodyRefer to ON-VEHICLE INSPECTION
Intake systemRefer to ON-VEHICLE INSPECTION
PCV valve and hoseRefer to INSPECTION
Air fuel ratio sensorRefer to INSPECTION
Mass air flow meterRefer to ON-VEHICLE INSPECTION
Hesitation/Poor accelerationFuel pump control circuitRefer to Fuel Pump Control Circuit
Fuel pumpRefer to INSPECTION
Spark plugRefer to ON-VEHICLE INSPECTION - Step 2
Ignition systemRefer to ON-VEHICLE INSPECTION
Fuel injector circuitRefer to Fuel Injector Circuit
ECM power source circuitRefer to ECM Power Source Circuit
Mass air flow meterRefer to ON-VEHICLE INSPECTION
Throttle bodyRefer to ON-VEHICLE INSPECTION
Intake systemRefer to ON-VEHICLE INSPECTION
Valve timingRefer to INSTALLATION
CompressionRefer to ON-VEHICLE INSPECTION - Step 9
Brake override systemRefer to Brake Override System
Surging (Poor driveability)Spark plugRefer to ON-VEHICLE INSPECTION - Step 2
Fuel pump control circuitRefer to Fuel Pump Control Circuit
Fuel pumpRefer to INSPECTION
Ignition systemRefer to ON-VEHICLE INSPECTION
Fuel injector circuitRefer to Fuel Injector Circuit
ECM power source circuitRefer to ECM Power Source Circuit
Mass air flow meterRefer to ON-VEHICLE INSPECTION
Variable valve timing (VVT) systemRefer to DTC P0010: Camshaft Position "A" Actuator Circuit (Bank 1)
CompressionRefer to ON-VEHICLE INSPECTION - Step 9
Engine stalls soon after startingFuel pump control circuitRefer to Fuel Pump Control Circuit
Fuel pumpRefer to INSPECTION
Spark plugRefer to ON-VEHICLE INSPECTION - Step 2
Ignition systemRefer to ON-VEHICLE INSPECTION
Fuel injector circuitRefer to Fuel Injector Circuit
ECM power source circuitRefer to ECM Power Source Circuit
Mass air flow meterRefer to ON-VEHICLE INSPECTION
Variable valve timing (VVT) systemRefer to DTC P0010: Camshaft Position "A" Actuator Circuit (Bank 1)
Throttle bodyRefer to ON-VEHICLE INSPECTION
Intake systemRefer to ON-VEHICLE INSPECTION
PCV valve and hoseRefer to INSPECTION
CompressionRefer to ON-VEHICLE INSPECTION - Step 9
Engine stalls only during A/C operationA/C signal circuitRefer to HOW TO PROCEED WITH TROUBLESHOOTING
ECMRefer to REMOVAL
Unable/difficult to refuelRefueling valve (canister) for 2WDRefer to INSPECTION
Refueling valve (canister) for 4WDRefer to INSPECTION

SFI SYSTEM

Scheme 2

Scheme 2: TERMINALS OF ECM

HINT

The standard normal voltage between each pair of ECM terminals is shown in the table below. The appropriate conditions for checking each pair of terminals are also indicated. The result of checks should be compared with the standard normal voltage for that pair of terminals, displayed in the Specified Condition column. The illustration above can be used as a reference to identify the ECM terminal locations.

Terminal No. (Symbol)Wiring ColorTerminal DescriptionConditionSpecified Condition
A37-20 (BATT) - B29-104 (E1)P - BRBattery (for measuring battery voltage and for ECM memory)Always11 to 14 V
A37-3 (+BM) - B29-104 (E1)B - BRPower source of throttle actuatorAlways11 to 14 V
A37-28 (IGSW) - B29-104 (E1)B - BRIgnition switchIgnition switch to ON11 to 14 V
A37-2 (+B) - B29-104 (E1)B - BRPower source of ECMIgnition switch to ON11 to 14 V
A37-1 (+B2) - B29-104 (E1)B - BRPower source of ECMIgnition switch to ON11 to 14 V
B29-100 (OC1+) - B29-123 (OC1-)B - VCamshaft timing oil control valveIdlingPulse generation ( (Scheme 3)waveform 1)
A37-44 (MREL) - B29-104 (E1)L - BREFI relayIgnition switch to ON11 to 14 V
B29-118 (VG) - B29-116 (E2G)V - BMass air flow meterIdling, Shift lever position P or N (neutral), A/C switch OFF0.5 to 3.0 V
B29-65 (THA) - B29-88 (ETHA)P - BR-WIntake air temperature sensor (built into mass air flow meter)Idling, Intake air temperature 20°C (68°F)0.5 to 3.4 V
B29-97 (THW) - B29-96 (ETHW)B - BREngine coolant temperature sensorIdling, Engine coolant temperature 80°C (176°F)0.2 to 1.0 V
B29-67 (VCTA) - B29-91 (ETA)Y - BRPower source of throttle position sensor (specific voltage)Ignition switch to ON4.5 to 5.5 V
B29-115 (VTA1) - B29-91 (ETA)LG - BRThrottle position sensor (for engine control)Ignition switch to ON, Accelerator pedal released0.5 to 1.1 V
Ignition switch to ON, Accelerator pedal fully depressed3.2 to 4.8 V
B29-114 (VTA2) - B29-91 (ETA)R - BRThrottle position sensor (for sensor malfunction detection)Ignition switch to ON, Accelerator pedal released2.1 to 3.1 V
Ignition switch to ON, Accelerator pedal fully depressed4.6 to 5.0 V
A37-55 (VPA) - A37-59 (EPA)L - RAccelerator pedal position sensor (for engine control)Ignition switch to ON, Accelerator pedal released0.5 to 1.1 V
Ignition switch to ON, Accelerator pedal fully depressed2.6 to 4.5 V
A37-56 (VPA2) - A37-60 (EPA2)Y - BEAccelerator pedal position sensor (for sensor malfunctioning detection)Ignition switch to ON, Accelerator pedal released1.2 to 2.0 V
Ignition switch to ON, Accelerator pedal fully depressed3.4 to 4.7 V
A37-57 (VCPA) - A37-59 (EPA)P - RPower source of accelerator pedal position sensor (for VPA)Ignition switch to ON4.5 to 5.5 V
A37-58 (VCP2) - A37-60 (EPA2)B - BEPower source of accelerator pedal position sensor (for VPA2)Ignition switch to ON4.5 to 5.5 V
B29-109 (HA1A) - B29-46 (E04)R - W-BAir fuel ratio sensor heaterIdling with warm enginePulse generation ( (Scheme 4)waveform 2)
Ignition switch to ON11 to 14 V
B29-112 (A1A+) - B29-104 (E1)Y -BRAir fuel ratio sensorIgnition switch to ON3.3 V*1
B29-113 (A1A-) - B29-104 (E1)L - BRAir fuel ratio sensorIgnition switch to ON3.0 V*1
B29-47 (HT1B) - B29-86 (E03)P - W-BHeated oxygen sensor heaterIgnition switch to ON11 to 14 V
B29-64 (OX1B) - B29-87 (EX1B)B - LG-B*3 B - W*4Heated oxygen sensorEngine speed maintained at 2500 RPM for 2 minutes after warming up sensorPulse generation ( (Scheme 5)waveform 3)
B29-108 (#10) - B29-45 (E01) B29-107 (#20) - B29-45 (E01) B29-106 (#30) - B29-45 (E01) B29-105 (#40) - B29-45 (E01)V - W-B R - W-B G - W-B LG - W-BFuel injectorIgnition switch to ON11 to 14 V
IdlingPulse generation ( (Scheme 6)waveform 4)
B29-110 (KNK1) - B29-111 (EKNK)B - WKnock sensorEngine speed maintained at 4000 RPM after warming up enginePulse generation ( (Scheme 7)waveform 5)
B29-99 (G2+) - B29-98 (G2-)R - WCamshaft position sensorIdlingPulse generation ( (Scheme 8)waveform 6)
B29-122 (NE+) - B29-121 (NE-)R - GCrankshaft position sensorIdlingPulse generation ( (Scheme 8)waveform 6)
B29-85 (IGT1) - B29-104 (E1) B29-84 (IGT2) - B29-104 (E1) B29-83 (IGT3) - B29-104 (E1) B29-82 (IGT4) - B29-104 (E1)W-L - BR B - BR L-B - BR B - BRIgnition coil (ignition signal)IdlingPulse generation ( (Scheme 9)waveform 7)
B29-81 (IGF1) - B29-104 (E1)Y - BRIgnition coil (ignition confirmation signal)Ignition switch to ON4.5 to 5.5 V
IdlingPulse generation ( (Scheme 9)waveform 7)
B29-49 (PRG) - B29-104 (E1)L-B - BRPurge VSVIgnition switch to ON11 to 14 V
IdlingPulse generation ( (Scheme 10)waveform 8)
A37-8 (SPD) - B29-104 (E1)V - BRSpeed signal from combination meterDriving at 12 mph (20 km/h)Pulse generation ( (Scheme 11)waveform 9)
A37-48 (STA) - B29-104 (E1)LG - BRStarter signalCranking5.5 V or more
B29-52 (NSW)*2 - B29-104 (E1)W - BRPark/neutral position switch signalIgnition switch to ON, transmission gear position in P or NBelow 1.5 V
Ignition switch to ON, transmission gear position in except P or N6.0 V or more
A37-36 (STP) - B29-104 (E1)L - BRStop light switchBrake pedal depressed7.5 to 14 V
Brake pedal releasedBelow 1.5 V
A37-35 (ST1-) - B29-104 (E1)R - BRStop light switch (opposite to STP terminal)Ignition switch to ON, Brake pedal depressedBelow 1.5 V
Ignition switch to ON, Brake pedal released7.5 to 14 V
B29-42 (M+) - B29-43 (ME01)P - W-BThrottle actuatorIdling with warm enginePulse generation ( (Scheme 12)waveform 10)
B29-41 (M-) - B29-43 (ME01)L - W-BThrottle actuatorIdling with warm enginePulse generation ( (Scheme 13)waveform 11)
A37-7 (FC) - B29-104 (E1)BE - BRFuel pump controlIgnition switch to ON11 to 14 V
IdlingBelow 1.5 V
A37-24 (W) - B29-104 (E1)R - BRMILIgnition switch to ON (MIL goes on)Below 1.5 V
Idling11 to 14 V
A37-27 (TC) - B29-104 (E1)P - BRTerminal TC of DLC3Ignition switch to ON11 to 14 V
A37-15 (TACH) - B29-104 (E1)GR - BREngine speedIdlingPulse generation ( (Scheme 14)waveform 12)
A37-42 (VPMP) - B29-104 (E1)W - BRVent valve (built into canister pump module)Ignition switch to ON11 to 14 V
A37-34 (MPMP) - B29-104 (E1)R - BRLeak detection pump (built into canister pump module)Leak detection pump OFFBelow 3 V
Leak detection pump ON11 to 14 V
B29-70 (VCPP) - B29-94 (EPPM)V - GPower source for canister pressure sensor (specific voltage)Ignition switch to ON4.5 to 5.5 V
B29-71 (PPMP) - B29-94 (EPPM)Y - GCanister pressure sensor (built into canister pump module)Ignition switch to ON3 to 3.6 V
A37-31 (ELS1) - B29-104 (E1)B - BRElectric loadTaillight switch ON7.5 to 14 V
Taillight switch OFFBelow 1.5 V
A37-33 (ELS3) - B29-104 (E1)G - BRElectric loadDefogger switch ON7.5 to 14 V
Defogger switch OFFBelow 1.5 V
A37-21 (FANL) - B29-104 (E1)R - BRNo. 3 fan relayIgnition switch to ON11 to 14 V
Idling with A/C ON, or high engine coolant temperatureBelow 1.5 V
A37-22 (FANH) - B29-104 (E1)W - BRNo. 1 and No. 2 fan relayIdling with high engine coolant temperatureBelow 1.5 V
B29-50 (ALT) - B29-104 (E1)L - BRGeneratorIgnition switch to ON11 to 14 V
A37-41 (CANH) - B29-104 (E1)Y - BRCAN communication lineIgnition switch to ONPulse generation ( (Scheme 15)waveform 13)
A37-49 (CANL) - B29-104 (E1)W - BRCAN communication lineIgnition switch to ONPulse generation ( (Scheme 16)waveform 14)

HINT

*1: The ECM terminal voltage is constant regardless of the output voltage from the sensor.

*2: Automatic Transaxle

*3: 2WD

*4: 4WD

Scheme 3

Scheme 3

Scheme 4

Scheme 4

Scheme 5

Scheme 5

Scheme 6

Scheme 6

Scheme 7

Scheme 7

Scheme 8

Scheme 8

Scheme 9

Scheme 9

Scheme 10

Scheme 10

Scheme 11

Scheme 11

Scheme 12

Scheme 12

Scheme 13

Scheme 13

Scheme 14

Scheme 14

Scheme 15

Scheme 15

Scheme 16

Scheme 16
  1. WAVEFORM 1 CAMSHAFT TIMING OIL CONTROL VALVE ECM Terminal Name Between OC1+ and OC1- Tester Range 5 V/DIV., 1 msec./DIV. Condition Idling
  2. WAVEFORM 2 AIR FUEL RATIO SENSOR (SENSOR 1) HEATER ECM Terminal Name Between HA1A and E04 Tester Range 5 V/DIV., 10 msec./DIV. Condition Idling with warm engine HINT: The wavelength varies in accordance with the engine operating condition.
  3. WAVEFORM 3 HEATED OXYGEN SENSOR (SENSOR 2) ECM Terminal Name Between OX1B and EX1B Tester Range 0.2 V/DIV., 200 msec./DIV. Condition Engine speed maintained at 2500 RPM for 2 minutes after warming up sensor HINT: In Data List, item O2S B1S2 shows the ECM input values from the heated oxygen sensor.
  4. WAVEFORM 4 INJECTOR NO. 1 (TO NO. 4) INJECTION SIGNAL ECM Terminal Name Between #10 (to #40) and E01 Tester Range 20 V/DIV., 20 msec./DIV. Condition Idling HINT: The wavelength becomes shorter as the engine speed increases.
  5. WAVEFORM 5 KNOCK SENSOR ECM Terminal Name Between KNK1 and EKNK Tester Range 1 V/DIV., 1 msec./DIV. Condition Engine speed maintained at 4000 RPM after warming up engine HINT: The wavelength becomes shorter as the engine speed increases. The waveforms and amplitudes displayed differ slightly depending on the vehicle.
  6. WAVEFORM 6 CRANKSHAFT POSITION SENSOR AND CAMSHAFT POSITION SENSOR ECM Terminal Name CH1: Between G2+ and G2- CH2: Between NE+ and NE- Tester Range 5 V/DIV., 20 msec./DIV. Condition Idling HINT: The wavelength becomes shorter as the engine speed increases.
  7. WAVEFORM 7 IGNITER IGT SIGNAL (FROM ECM TO IGNITER) AND IGNITER IGF SIGNAL (FROM IGNITER TO ECM) ECM Terminal Name Between IGT (1 to 4) and E1 Between IGF1 and E1 Tester Range 2 V/DIV., 20 msec./DIV. Condition Idling HINT: The wavelength becomes shorter as the engine speed increases.
  8. WAVEFORM 8 PURGE VSV ECM Terminal Name Between PRG and E1 Tester Range 10 V/DIV., 20 msec./DIV. Condition Idling HINT: If the waveform is not similar to the illustration, check the waveform again after idling for 10 minutes or more.
  9. WAVEFORM 9 VEHICLE SPEED SIGNAL ECM Terminal Name Between SPD and E1 Tester Range 2 V/DIV., 20 msec./DIV. Condition Driving at 12 mph (20 km/h) HINT: The wavelength becomes shorter as the vehicle speed increases.
  10. WAVEFORM 10 THROTTLE ACTUATOR POSITIVE TERMINAL ECM Terminal Name Between M+ and ME01 Tester Range 5 V/DIV., 1 msec./DIV. Condition Idling with warm engine HINT: The duty ratio varies depending on the throttle actuator operation.
  11. WAVEFORM 11 THROTTLE ACTUATOR NEGATIVE TERMINAL ECM Terminal Name Between M- and ME01 Tester Range 5 V/DIV., 1 msec./DIV. Condition Idling with warm engine HINT: The duty ratio varies depending on the throttle actuator operation.
  12. WAVEFORM 12 ENGINE SPEED SIGNAL ECM Terminal Name Between TACH and E1 Tester Range 5 V/DIV., 10 msec./DIV. Condition Idling HINT: The wavelength becomes shorter as the engine speed increases.
  13. WAVEFORM 13 CAN COMMUNICATION SIGNAL (REFERENCE) ECM Terminal Name Between CANH and E1 Tester Range 1 V/DIV., 10 μsec./DIV. Condition Ignition switch to ON HINT: The waveform varies depending on the CAN communication signal.
  14. WAVEFORM 14 CAN COMMUNICATION SIGNAL (REFERENCE) ECM Terminal Name Between CANL and E1 Tester Range 1 V/DIV., 10 μsec./DIV. Condition Ignition switch to ON HINT: The waveform varies depending on the CAN communication signal.

Scheme 17

Scheme 17: DIAGNOSIS SYSTEM
  1. DESCRIPTION When troubleshooting OBD II (On-Board Diagnostics) vehicles, the Techstream (complying with SAE J1987) must be connected to the DLC3 (Data Link Connector 3) of the vehicle. Various data in the vehicle's ECM (Engine Control Module) can be then read. OBD II regulations require that the vehicle's on-board computer illuminate the MIL (Malfunction Indicator Lamp) on the instrument panel when the computer detects a malfunction in: The emission control system and components. The powertrain control components (which affect vehicle emissions). The computer itself. In addition, the applicable DTCs prescribed by SAE J2012 are recorded in the ECM memory. If the malfunction does not recur in 3 consecutive trips, the MIL turns off automatically but the DTCs remain recorded in the ECM memory. To check the DTCs, connect the Techstream to the DLC3. The Techstream displays DTCs, freeze frame data, and a variety of the engine data. The DTCs and freeze frame data can be erased with the Techstream. In order to enhance OBD function on vehicles and develop the Off-Board diagnosis system, Controller Area Network (CAN) communication is used in this system. CAN is a network which uses a pair of data transmission lines spanning multiple computers and sensors. It allows for high speed communications between the systems and simplification of the wire harness connections.
  2. NORMAL MODE AND CHECK MODE The diagnosis system operates in normal mode during normal vehicle use. In normal mode, 2 trip detection logic is used to ensure accurate detection of malfunctions. Check mode is also available as an option for technicians. In check mode, 1 trip detection logic is used for simulating malfunction symptoms and increasing the system's ability to detect malfunctions, including intermittent problems (the Techstream only).
  3. 2 TRIP DETECTION LOGIC When a malfunction is first detected, the malfunction is temporarily stored in the ECM memory (1st trip). If the same malfunction is detected during the next subsequent drive cycle, the MIL is illuminated (2nd trip).
  4. DLC3 (Data Link Connector 3) Check DLC3. Refer to «GENERAL INFORMATION»(ref-427305-S15629809542011101200000) .
  5. FREEZE FRAME DATA The ECM records vehicle and driving condition information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame data can be helpful in determining whether the vehicle was running or stopped, whether the engine was warmed up or not, whether the air-fuel ratio was lean or rich, as well as other data recorded at the time of a malfunction.
  6. BATTERY VOLTAGE Standard voltage 11 to 14 V If voltage is below 11 V, replace or recharge the battery before proceeding.
  7. MIL (Malfunction Indicator Lamp) The MIL is illuminated when the ignition switch is first turned to ON (the engine is not running). The MIL should turn OFF when the engine is started. If the MIL remains illuminated, the diagnosis system has detected a malfunction or abnormality in the system. HINT: If the MIL does not illuminate when the ignition switch is first turned to ON, check the MIL circuit. Refer to «MIL Circuit»(ref-427447-S20384809572011101200000) .
  8. ALL READINESS HINT: With "ALL READINESS" you can check whether or not the DTC judgment has been completed by using the Techstream. You should check "ALL READINESS" after simulating malfunction symptoms or for validation after finishing repairs. Connect the Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-427310-S22296836352011101200000) . Perform the DTC judgment driving pattern to run the DTC judgment. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness. Input the DTCs to be confirmed. Check the DTC judgment result. Techstream Display Description NORMAL DTC judgment completed System normal ABNORMAL DTC judgment completed System abnormal INCOMPLETE DTC judgment not completed You should perform driving pattern after confirming DTC enabling conditions UNKNOWN Unable to perform DTC judgment Number of DTCs which do not fulfill DTC preconditions has reached ECU's memory limit

DTC CHECK / CLEAR

Note. When the diagnosis system is changed from normal mode to check mode or vice versa, all DTCs and freeze frame data recorded in normal mode are erased. Before changing modes, always check and make a note of DTCs and freeze frame data.

HINT

  1. DTCs which are stored in the ECM can be displayed on the Techstream. The Techstream can display current, pending and permanent DTCs.
  2. If a malfunction is detected during the current driving cycle, current and permanent DTCs are stored.
  3. Some DTCs are not stored if the ECM does not detect the same malfunction again during a second consecutive driving cycle. However, such malfunctions, detected on only one occasion, are stored as pending DTCs.
  4. Current and pending DTCs can be cleared by using the Techstream or by disconnecting the cable from the negative battery terminal. However, permanent DTCs cannot be cleared using either of these two methods.
  5. After clearing current DTCs using the Techstream (or by disconnecting the cable from the negative battery terminal), permanent DTCs can be cleared when the system is determined to be normal for the relevant DTCs and then the universal trip is performed. The driving pattern to obtain a normal judgment is described under the "CONFIRMATION DRIVING PATTERN" for the respective DTC.
Pending DTCStore conditionMalfunction detected
Clear conditionSystem determined to be normal or DTCs cleared using Techstream or Cable disconnected from negative battery terminal
Current DTCStore conditionMalfunction detected (2nd trip)
Clear conditionNo malfunctions in 40 driving cycles or DTCs cleared using Techstream or Cable disconnected from negative battery terminal
Permanent DTCStore conditionMalfunction detected (2nd trip)
Clear conditionIgnition switch turned to ON after normal judgment obtained in 3 consecutive driving cycles or After DTCs cleared using Techstream or cable disconnected from negative battery terminal, normal judgment obtained and universal trip performed (not for misfire and fuel system DTCs) or After DTCs cleared using Techstream or cable disconnected from negative battery terminal, malfunction not detected when universal trip driving performed (misfire and fuel system DTCs)
MILONMalfunction detected (2nd trip)
OFFIgnition switch turned to ON after normal judgment obtained in 3 consecutive driving cycles or DTCs cleared using Techstream or Cable disconnected from negative battery terminal

2 TRIP DETECTION EXAMPLES

Scheme 18

Scheme 18

Scheme 19

Scheme 19

HINT

  1. Obtaining a normal judgment and performing a universal trip driving pattern can be done in the same driving cycle or in different driving cycles.
  2. It is unnecessary to obtain a normal judgment if the DTCs are misfire or fuel system DTCs.

Scheme 20

Scheme 20
  1. CHECK DTC Connect the Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes. Check the DTC(s) and freeze frame data, and then save or write them down. Check the details of the DTC(s). Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-427310-S25966285782011101200000) .
  2. CLEAR DTC (Pending and Current DTC) Connect the Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes. Clear the DTCs.
  3. CLEAR DTC (Pending and Current DTC without using Techstream) Perform either of the following operations: Disconnect the cable from the negative (-) battery terminal for more than 1 minute. Remove the EFI MAIN and ETCS fuses from the engine room relay block located inside the engine compartment for more than 1 minute.
  4. CLEAR PERMANENT DTC HINT: Even if the following procedure is not performed, permanent DTCs are cleared by obtaining a normal judgment during 3 consecutive driving cycles. Connect the Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes. Check if permanent DTCs are stored. HINT: If permanent DTCs are not output, it is not necessary to continue this procedure. Clear the DTCs. Perform the respective confirmation driving patterns in order to obtain a normal judgment for the output DTCs. HINT: Confirmation driving patterns do not need to be performed for misfire and fuel system DTCs. For the confirmation driving pattern, refer to the procedures for the relevant DTC. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-427310-S25966285782011101200000) . Perform the universal trip. HINT: The driving pattern to obtain a normal judgment and the universal trip driving can be performed consecutively in the same driving cycle. Idle the engine for 30 seconds or more. Drive the vehicle at 25 mph (40 km/h) or more for a total of 5 minutes or more. HINT: It is possible to complete the drive pattern even if the vehicle decelerates to less than 25 mph (40 km/h) during the driving cycle provided that the vehicle is driven at 25 mph (40 km/h) or more for a total of 5 minutes. Allow 10 minutes or more to elapse from the time the engine is started. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes. Check that the permanent DTCs have been cleared. HINT: The permanent DTCs are cleared when the universal trip is completed.

Scheme 21

Scheme 21: FREEZE FRAME DATA
  1. DESCRIPTION The ECM records vehicle and driving condition information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame data can be helpful in determining whether the vehicle was moving or stationary, whether the engine was warmed up or not, whether the air-fuel ratio was lean or rich, as well as other data recorded at the time of a malfunction. HINT: If it is impossible to replicate the problem even though a DTC is detected, confirm the freeze frame data. The ECM records engine conditions in the form of freeze frame data every 0.5 seconds. Using the Techstream, five separate sets of freeze frame data, including the data values at the time when the DTC was set, can be checked. 3 sets of data from before the DTC was set. 1 sets of data from when the DTC was set. 1 sets of data from after the DTC was set. These data sets can be used to simulate the condition of the vehicle around the time of the occurrence of the malfunction. The data may assist in identifying of the cause of the malfunction, and in judging whether it was temporary or not.
  2. LIST OF FREEZE FRAME DATA Techstream Display Measurement Item Diagnostic Note Vehicle Speed Vehicle speed Speed indicated on speedometer Engine Speed Engine speed - Calculate Load Calculated load by ECM - Vehicle Load Vehicle load Load percentage in terms of maximum intake air flow amount MAF Air flow rate from Mass Air Flow (MAF) meter If value approximately 0.0 gm/sec: Mass air flow meter power source circuit open VG circuit open or short If value 271.0 gm/sec or more: E2G circuit open Atmosphere Pressure Atmospheric pressure - Coolant Temp Engine coolant temperature If value -40°C (-40°F): sensor circuit open If value more than 135°C (275°F): sensor circuit shorted Intake Air Intake air temperature If value -40°C (-40°F): sensor circuit open If value more than 128°C (262°F): sensor circuit shorted Engine Run Time Engine run time - Initial Engine Coolant Temp Initial engine coolant temperature Service data Initial Intake Air Temp Initial intake air temperature Service data Battery Voltage Battery voltage - Accel Sens. No. 1 Volt % Accelerator pedal position No. 1 - Accel Sens. No. 2 Volt % Accelerator pedal position No. 2 - Throttle Sensor Volt % Throttle position - Throttl Sensor #2 Volt % Absolute throttle sensor positioning #2 Recognition value for throttle opening angle on ECM Read value with ignition switch ON Throttle Sensor Position Throttle sensor positioning Recognition value for throttle opening angle on ECM Read value with ignition switch ON Throttle Motor DUTY Throttle motor - Injector (Port) Injection period of No. 1 cylinder - Injection Volum (Cylinder1) Injection volume (Cylinder 1) Quantity of fuel injection volume for 10 times Fuel Pump/Speed Status Fuel pump/status - Vacuum Pump Key-off EVAP system leak detection pump status - EVAP (Purge) VSV EVAP (Purge) VSV control duty Order signal from ECM Evap Purge Flow Ratio of evaporative purge flow to intake air volume Service data Purge Density Learn Value Learning value of purge density Service data EVAP System Vent Valve key-off EVAP system vent valve status - EVAP Purge VSV VSV status for EVAP control - Purge Cut VSV Duty Purge cut VSV duty - Target Air-fuel Ratio Ratio compared to stoichiometric level - AF Lambda B1S1 Fuel trim at A/F sensor - AFS Voltage B1S1 A/F sensor output voltage for bank 1 sensor 1 Performing Control the Injection Volume or Control the Injection Volume for A/F Sensor function of Active Test enables technician to check output voltage of sensor AFS Current B1S1 Air fuel ratio sensor output current for bank 1 sensor 1 Value becomes higher when fuel-cut executed under high engine speed A/F Heater Duty #1 Air fuel ratio heater duty ratio - O2S B1S2 Heated oxygen sensor output voltage for bank 1 sensor 2 Performing Control the Injection Volume or Control the Injection Volume for A/F Sensor function of Active Test enables technician to check output voltage of sensor O2S Impedance B1S2 Sub heated oxygen sensor impedance (bank 1 sensor 2) - O2 Heater B1S2 Heated oxygen sensor heater - O2 Heater Curr Val B1S2 Heated oxygen sensor current - Short FT #1 Short-term fuel trim of bank 1 Short-term fuel compensation used to maintain air-fuel ratio at stoichiometric air-fuel ratio Long FT #1 Long-term fuel trim of bank 1 Overall fuel compensation carried out long-term to compensate continual deviation of short-term fuel trim from central value Total FT #1 Total fuel trim of bank 1 Average value for fuel trim system of bank 1 - Fuel System Status #1 Fuel system status (bank 1) OL (Open Loop): Has not yet satisfied conditions to go closed loop CL (Closed Loop): Using air fuel ratio sensor as feedback for fuel control OLDrive: Open loop due to driving conditions (fuel enrichment) OLFault: Open loop due to detected system fault CLFault: Closed loop but air fuel ratio sensor, which is used for fuel control, malfunctioning Fuel System Status #2 Fuel system status (bank 2) OL (Open Loop): Has not yet satisfied conditions to go closed loop CL (Closed Loop): Using air fuel ratio sensor as feedback for fuel control OLDrive: Open loop due to driving conditions (fuel enrichment) OLFault: Open loop due to detected system fault CLFault: Closed loop but air fuel ratio sensor, which is used for fuel control malfunctioning IGN Advance Ignition timing advance for No. 1 cylinder - Knock Feedback Value Feedback value of knocking Service data Knock Correct Learn Value Correction learning value of knocking Service data VVT Control Status #1 VVT control (bank 1) status - Catalyst Temp B1S1 Catalyst temperature (associated sensor 1) - Catalyst Temp B1S2 Catalyst temperature (associated sensor 2) - Starter Signal Starter signal (STA terminal input status) - Power Steering Signal Power steering switch signal - Neutral Position SW Signal*1 Park/neutral position switch status - Clutch Switch*2 Clutch switch - Stop Light Switch Stop light switch status - A/C Signal A/C switch status - Idle Up Signal Idle up signal - Closed Throttle Position SW Closed throttle position switch - Fuel Cut Condition Fuel-cut condition - Immobilizer Communication Immobilizer communication OFF: Communication malfunctioning, or engine immobilizer system set TC Terminal TC terminal status - Time after DTC Cleared Time since DTCs cleared - Distance from DTC Cleared Distance traveled since DTCs cleared - Warm-up Cycle Cleared DTC Warm-up cycles since DTCs cleared Number of warm-up cycles since DTCs cleared Dist Batt Cable Disconnect Accumulated distance from battery cable disconnected - IG OFF Elapsed Time Cumulative time after ignition switch off - TC and TE1 TC and CG (TE1) terminals of DLC3 - Ignition Trig. Count Ignition counter to calculated misfire rate - Cylinder #1 Misfire Count Misfire ratio of cylinder 1 - Cylinder #2 Misfire Count Misfire ratio of cylinder 2 - Cylinder #3 Misfire Count Misfire ratio of cylinder 3 - Cylinder #4 Misfire Count Misfire ratio of cylinder 4 - All Cylinders Misfire Count All cylinders misfire rate - Misfire RPM Average engine speed when misfire occurs - Misfire Load Average engine load when misfire occurred - Misfire Margin Margin to detect engine misfire Misfire detection margin Catalyst OT MF F/C Catalyst over temperature misfire prevention F/C - Cat OT MF F/C History Catalyst over temperature misfire prevention F/C history - Cat OT MF F/C Cylinder#1 Catalyst over temperature misfire prevention F/C history OFF - Cat OT MF F/C Cylinder#2 Catalyst over temperature misfire prevention F/C history OFF - Cat OT MF F/C Cylinder#3 Catalyst over temperature misfire prevention F/C history OFF - Cat OT MF F/C Cylinder#4 Catalyst over temperature misfire prevention F/C history OFF - Electric Fan Motor Electric cooling fan motor - Idle Fuel Cut Fuel cut idle Idle Fuel Cut = "ON" when throttle valve fully closed and engine speed over 2500 RPM FC TAU Fuel cut TAU (Fuel cut during very light load) Fuel cut being performed under very light load to prevent engine combustion from becoming incomplete Electrical Load Signal 1 Electrical load signal 1 - Electrical Load Signal 3 Electrical load signal 3 - *1: Automatic Transaxle only *2: Manual Transaxle only

DIAGNOSTIC TROUBLE CODE CHART

HINT

Parameters listed in the chart may be different than your readings depending on the type of instrument and other factors.

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 service information indicated.

HINT

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

DTC CodeDetection ItemTrouble AreaMILMemorySee
P0010Camshaft Position "A" Actuator Circuit (Bank 1)Open or short in camshaft timing oil control valve assembly circuit - Camshaft timing oil control valve assembly - ECMComes onDTC storedRefer to DTC P0010: Camshaft Position "A" Actuator Circuit (Bank 1)
P0011Camshaft Position "A" - Timing Over-Advanced or System Performance (Bank 1)Valve timing - Camshaft timing oil control valve assembly - Oil control valve filter - Camshaft timing gear assembly - ECMComes onDTC storedRefer to DTC P0011: Camshaft Position "A" - Timing Over-Advanced or System Performance (Bank 1); DTC P0012: Camshaft Position "A" - Timing Over-Retarded (Bank 1)
P0012Camshaft Position "A" - Timing Over-Retarded (Bank 1)Valve timing - Camshaft timing oil control valve assembly - Oil control valve filter - Camshaft timing gear assembly - ECMComes onDTC storedRefer to DTC P0011: Camshaft Position "A" - Timing Over-Advanced or System Performance (Bank 1); DTC P0012: Camshaft Position "A" - Timing Over-Retarded (Bank 1)
P0016Crankshaft Position - Camshaft Position Correlation (Bank 1 Sensor A)Mechanical system (Timing chain has jumped tooth or chain stretched) - Camshaft timing oil control valve assembly - Camshaft timing gear assembly - ECMComes onDTC storedRefer to DTC P0016: Crankshaft Position - Camshaft Position Correlation (Bank 1 Sensor A)
P0031Oxygen (A/F) Sensor Heater Control Circuit Low (Bank 1 Sensor 1)Open in air fuel ratio sensor heater circuit - Air fuel ratio sensor heater (sensor 1) - ECMComes onDTC storedRefer to DTC P0031: Oxygen (A/F) Sensor Heater Control Circuit Low (Bank 1 Sensor 1); DTC P0032: Oxygen (A/F) Sensor Heater Control Circuit High (Bank 1 Sensor 1)
P0032Oxygen (A/F) Sensor Heater Control Circuit High (Bank 1 Sensor 1)Short in air fuel ratio sensor heater circuit - Air fuel ratio sensor heater (sensor 1) - ECMComes onDTC storedRefer to DTC P0031: Oxygen (A/F) Sensor Heater Control Circuit Low (Bank 1 Sensor 1); DTC P0032: Oxygen (A/F) Sensor Heater Control Circuit High (Bank 1 Sensor 1)
P0037Oxygen Sensor Heater Control Circuit Low (Bank 1 Sensor 2)Open in heated oxygen sensor (sensor 2) heater circuit - Heated oxygen sensor (sensor 2) heater - ECMComes onDTC storedRefer to DTC P0037: Oxygen Sensor Heater Control Circuit Low (Bank 1 Sensor 2); DTC P0038: Oxygen Sensor Heater Control Circuit High (Bank 1 Sensor 2); DTC P0141: Oxygen Sensor Heater Circuit Malfunction (Bank 1 Sensor 2)
P0038Oxygen Sensor Heater Control Circuit High (Bank 1 Sensor 2)Short in heated oxygen sensor (sensor 2) heater circuit - Heated oxygen sensor (sensor 2) heater - ECMComes onDTC storedRefer to DTC P0037: Oxygen Sensor Heater Control Circuit Low (Bank 1 Sensor 2); DTC P0038: Oxygen Sensor Heater Control Circuit High (Bank 1 Sensor 2); DTC P0141: Oxygen Sensor Heater Circuit Malfunction (Bank 1 Sensor 2)
P0101Mass Air Flow Circuit Range / Performance ProblemMass air flow meter - Intake system - PCV hose connectionsComes onDTC storedRefer to DTC P0101: Mass Air Flow Circuit Range / Performance Problem
P0102Mass or Volume Air Flow Circuit Low InputOpen or short in mass air flow meter circuit - Mass air flow meter - ECMComes onDTC storedRefer to DTC P0102: Mass or Volume Air Flow Circuit Low Input; DTC P0103: Mass or Volume Air Flow Circuit High Input
P0103Mass or Volume Air Flow Circuit High InputOpen or short in mass air flow meter circuit - Mass air flow meter - ECMComes onDTC storedRefer to DTC P0102: Mass or Volume Air Flow Circuit Low Input; DTC P0103: Mass or Volume Air Flow Circuit High Input
P0111Intake Air Temperature Sensor Gradient Too HighMass air flow meterComes onDTC storedRefer to DTC P0111: Intake Air Temperature Sensor Gradient Too High
P0112Intake Air Temperature Circuit Low InputShort in intake air temperature sensor circuit - Intake air temperature sensor (built into mass air flow meter) - ECMComes onDTC storedRefer to DTC P0112: Intake Air Temperature Circuit Low Input; DTC P0113: Intake Air Temperature Circuit High Input
P0113Intake Air Temperature Circuit High InputOpen in intake air temperature sensor circuit - Intake air temperature sensor (built into mass air flow meter) - ECMComes onDTC storedRefer to DTC P0112: Intake Air Temperature Circuit Low Input; DTC P0113: Intake Air Temperature Circuit High Input
P0115Engine Coolant Temperature Circuit MalfunctionOpen or short in engine coolant temperature sensor circuit - Engine coolant temperature sensor - ECMComes onDTC storedRefer to DTC P0115: Engine Coolant Temperature Circuit Malfunction; DTC P0117: Engine Coolant Temperature Circuit Low Input; DTC P0118: Engine Coolant Temperature Circuit High Input
P0116Engine Coolant Temperature Circuit Range / Performance ProblemThermostat - Engine coolant temperature sensorComes onDTC storedRefer to DTC P0116: Engine Coolant Temperature Circuit Range / Performance Problem
P0117Engine Coolant Temperature Circuit Low InputShort in engine coolant temperature sensor circuit - Engine coolant temperature sensor - ECMComes onDTC storedRefer to DTC P0115: Engine Coolant Temperature Circuit Malfunction; DTC P0117: Engine Coolant Temperature Circuit Low Input; DTC P0118: Engine Coolant Temperature Circuit High Input
P0118Engine Coolant Temperature Circuit High InputOpen in engine coolant temperature sensor circuit - Engine coolant temperature sensor - ECMComes onDTC storedRefer to DTC P0115: Engine Coolant Temperature Circuit Malfunction; DTC P0117: Engine Coolant Temperature Circuit Low Input; DTC P0118: Engine Coolant Temperature Circuit High Input
P011BEngine Coolant Temperature / Intake Air Temperature CorrelationIntake air temperature sensor (built into mass air flow meter) - Engine coolant temperature sensor - ECMComes onDTC storedRefer to DTC P011B: Engine Coolant Temperature / Intake Air Temperature Correlation
P0120Throttle / Pedal Position Sensor / Switch "A" Circuit MalfunctionThrottle position sensor (built into throttle body) - ECMComes onDTC storedRefer to DTC P0120: Throttle / Pedal Position Sensor / Switch "A" Circuit Malfunction; DTC P0121: Throttle / Pedal Position Sensor / Switch "A" Circuit Range / Performance Problem; DTC P0122: Throttle / Pedal Position Sensor / Switch "A" Circuit Low Input; DTC P0123: Throttle / Pedal Position Sensor / Switch "A" Circuit High Input; DTC P0220: Throttle / Pedal Position Sensor / Switch "B" Circuit; DTC P0222: Throttle / Pedal Position Sensor / Switch "B" Circuit Low Input; DTC P0223: Throttle / Pedal Position Sensor / Switch "B" Circuit High Input; DTC P2135: Throttle / Pedal Position Sensor / Switch "A" / "B" Voltage Correlation
P0121Throttle / Pedal Position Sensor / Switch "A" Circuit Range / Performance ProblemThrottle position sensor (built into throttle body) - Throttle position sensor circuit - ECMComes onDTC storedRefer to DTC P0120: Throttle / Pedal Position Sensor / Switch "A" Circuit Malfunction; DTC P0121: Throttle / Pedal Position Sensor / Switch "A" Circuit Range / Performance Problem; DTC P0122: Throttle / Pedal Position Sensor / Switch "A" Circuit Low Input; DTC P0123: Throttle / Pedal Position Sensor / Switch "A" Circuit High Input; DTC P0220: Throttle / Pedal Position Sensor / Switch "B" Circuit; DTC P0222: Throttle / Pedal Position Sensor / Switch "B" Circuit Low Input; DTC P0223: Throttle / Pedal Position Sensor / Switch "B" Circuit High Input; DTC P2135: Throttle / Pedal Position Sensor / Switch "A" / "B" Voltage Correlation
P0122Throttle / Pedal Position Sensor / Switch "A" Circuit Low InputThrottle position sensor (built into throttle body) - Short in VTA1 circuit - Open in VC circuit - ECMComes onDTC storedRefer to DTC P0120: Throttle / Pedal Position Sensor / Switch "A" Circuit Malfunction; DTC P0121: Throttle / Pedal Position Sensor / Switch "A" Circuit Range / Performance Problem; DTC P0122: Throttle / Pedal Position Sensor / Switch "A" Circuit Low Input; DTC P0123: Throttle / Pedal Position Sensor / Switch "A" Circuit High Input; DTC P0220: Throttle / Pedal Position Sensor / Switch "B" Circuit; DTC P0222: Throttle / Pedal Position Sensor / Switch "B" Circuit Low Input; DTC P0223: Throttle / Pedal Position Sensor / Switch "B" Circuit High Input; DTC P2135: Throttle / Pedal Position Sensor / Switch "A" / "B" Voltage Correlation
P0123Throttle / Pedal Position Sensor / Switch "A" Circuit High InputThrottle position sensor (built into throttle body) - Open in VTA1 circuit - Open in E2 circuit - Short between VC and VTA1 circuits - ECMComes onDTC storedRefer to DTC P0120: Throttle / Pedal Position Sensor / Switch "A" Circuit Malfunction; DTC P0121: Throttle / Pedal Position Sensor / Switch "A" Circuit Range / Performance Problem; DTC P0122: Throttle / Pedal Position Sensor / Switch "A" Circuit Low Input; DTC P0123: Throttle / Pedal Position Sensor / Switch "A" Circuit High Input; DTC P0220: Throttle / Pedal Position Sensor / Switch "B" Circuit; DTC P0222: Throttle / Pedal Position Sensor / Switch "B" Circuit Low Input; DTC P0223: Throttle / Pedal Position Sensor / Switch "B" Circuit High Input; DTC P2135: Throttle / Pedal Position Sensor / Switch "A" / "B" Voltage Correlation
P0125Insufficient Coolant Temperature for Closed Loop Fuel ControlCooling system - Engine coolant temperature sensor - ThermostatComes onDTC storedRefer to DTC P0125: Insufficient Coolant Temperature for Closed Loop Fuel Control
P0128Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature)Thermostat - Cooling system - Engine coolant temperature sensor - ECMComes onDTC storedRefer to DTC P0128: Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature)
P0136Oxygen Sensor Circuit Malfunction (Bank 1 Sensor 2)Open or short in heated oxygen sensor (sensor 2) circuit - Heated oxygen sensor (sensor 2) - Heated oxygen sensor (sensor 2) heater - Air fuel ratio sensor (sensor 1) - Gas leak from exhaust systemComes onDTC storedRefer to DTC P0136: Oxygen Sensor Circuit Malfunction (Bank 1 Sensor 2); DTC P0137: Oxygen Sensor Circuit Low Voltage (Bank 1 Sensor 2); DTC P0138: Oxygen Sensor Circuit High Voltage (Bank 1 Sensor 2); DTC P0139: Oxygen Sensor Circuit Slow Response (Bank 1 Sensor 2)
P0137Oxygen Sensor Circuit Low Voltage (Bank 1 Sensor 2)Open in heated oxygen sensor (sensor 2) circuit - Heated oxygen sensor (sensor 2) - Heated oxygen sensor (sensor 2) heater - Gas leak from exhaust system - Air fuel ratio sensor (sensor 1)Comes onDTC storedRefer to DTC P0136: Oxygen Sensor Circuit Malfunction (Bank 1 Sensor 2); DTC P0137: Oxygen Sensor Circuit Low Voltage (Bank 1 Sensor 2); DTC P0138: Oxygen Sensor Circuit High Voltage (Bank 1 Sensor 2); DTC P0139: Oxygen Sensor Circuit Slow Response (Bank 1 Sensor 2)
P0138Oxygen Sensor Circuit High Voltage (Bank 1 Sensor 2)Short in heated oxygen sensor (sensor 2) circuit - Heated oxygen sensor (sensor 2) - ECMComes onDTC storedRefer to DTC P0136: Oxygen Sensor Circuit Malfunction (Bank 1 Sensor 2); DTC P0137: Oxygen Sensor Circuit Low Voltage (Bank 1 Sensor 2); DTC P0138: Oxygen Sensor Circuit High Voltage (Bank 1 Sensor 2); DTC P0139: Oxygen Sensor Circuit Slow Response (Bank 1 Sensor 2)
P0139Oxygen Sensor Circuit Slow Response (Bank 1 Sensor 2)Short in heated oxygen sensor (sensor 2) circuit - Heated oxygen sensor (sensor 2) - ECMComes onDTC storedRefer to DTC P0136: Oxygen Sensor Circuit Malfunction (Bank 1 Sensor 2); DTC P0137: Oxygen Sensor Circuit Low Voltage (Bank 1 Sensor 2); DTC P0138: Oxygen Sensor Circuit High Voltage (Bank 1 Sensor 2); DTC P0139: Oxygen Sensor Circuit Slow Response (Bank 1 Sensor 2)
P0141Oxygen Sensor Heater Circuit Malfunction (Bank 1 Sensor 2)Open or short in heated oxygen sensor (sensor 2) heater circuit - Heated oxygen sensor (sensor 2) heater - ECMComes onDTC storedRefer to DTC P0037: Oxygen Sensor Heater Control Circuit Low (Bank 1 Sensor 2); DTC P0038: Oxygen Sensor Heater Control Circuit High (Bank 1 Sensor 2); DTC P0141: Oxygen Sensor Heater Circuit Malfunction (Bank 1 Sensor 2)
P014CA/F Sensor Slow Response - Rich to Lean Bank 1 Sensor 1Air fuel ratio sensor (sensor 1) - Air fuel ratio sensor (sensor 1) heater - ECMComes onDTC storedRefer to DTC P014C: A/F Sensor Slow Response - Rich to Lean Bank 1 Sensor 1; DTC P014D: A/F Sensor Slow Response - Lean to Rich Bank 1 Sensor 1; DTC P015A: A/F Sensor Delayed Response - Rich to Lean Bank 1 Sensor 1; DTC P015B: A/F Sensor Delayed Response - Lean to Rich Bank 1 Sensor 1
P014DA/F Sensor Slow Response - Lean to Rich Bank 1 Sensor 1Air fuel ratio sensor (sensor 1) - Air fuel ratio sensor (sensor 1) heater - ECMComes onDTC storedRefer to DTC P014C: A/F Sensor Slow Response - Rich to Lean Bank 1 Sensor 1; DTC P014D: A/F Sensor Slow Response - Lean to Rich Bank 1 Sensor 1; DTC P015A: A/F Sensor Delayed Response - Rich to Lean Bank 1 Sensor 1; DTC P015B: A/F Sensor Delayed Response - Lean to Rich Bank 1 Sensor 1
P015AA/F Sensor Delayed Response - Rich to Lean Bank 1 Sensor 1Air fuel ratio sensor (sensor 1) - Air fuel ratio sensor (sensor 1) heater - ECMComes onDTC storedRefer to DTC P014C: A/F Sensor Slow Response - Rich to Lean Bank 1 Sensor 1; DTC P014D: A/F Sensor Slow Response - Lean to Rich Bank 1 Sensor 1; DTC P015A: A/F Sensor Delayed Response - Rich to Lean Bank 1 Sensor 1; DTC P015B: A/F Sensor Delayed Response - Lean to Rich Bank 1 Sensor 1
P015BA/F Sensor Delayed Response - Lean to Rich Bank 1 Sensor 1Air fuel ratio sensor (sensor 1) - Air fuel ratio sensor (sensor 1) heater - ECMComes onDTC storedRefer to DTC P014C: A/F Sensor Slow Response - Rich to Lean Bank 1 Sensor 1; DTC P014D: A/F Sensor Slow Response - Lean to Rich Bank 1 Sensor 1; DTC P015A: A/F Sensor Delayed Response - Rich to Lean Bank 1 Sensor 1; DTC P015B: A/F Sensor Delayed Response - Lean to Rich Bank 1 Sensor 1
P0171System Too Lean (Bank 1)Intake system - Injector blockage - Mass air flow meter - Engine coolant temperature sensor - Fuel pressure - Gas leak from exhaust system - Open or short in air fuel ratio sensor (sensor 1) circuit - Air fuel ratio sensor (sensor 1) - EFI No. 2 fuse - PCV valve and hose - PCV hose connections - ECM - Wire harness or connectorComes onDTC storedRefer to DTC P0171: System Too Lean (Bank 1); DTC P0172: System Too Rich (Bank 1)
P0172System Too Rich (Bank 1)Injector leak or blockage - Mass air flow meter - Engine coolant temperature sensor - Ignition system - Fuel pressure - Gas leak from exhaust system - Open or short in air fuel ratio sensor (sensor 1) circuit - Air fuel ratio sensor (sensor 1) - EFI No. 2 fuse - ECM - Wire harness or connectorComes onDTC storedRefer to DTC P0171: System Too Lean (Bank 1); DTC P0172: System Too Rich (Bank 1)
P0220Throttle / Pedal Position Sensor / Switch "B" CircuitThrottle position sensor (built into throttle body) - ECMComes onDTC storedRefer to DTC P0120: Throttle / Pedal Position Sensor / Switch "A" Circuit Malfunction; DTC P0121: Throttle / Pedal Position Sensor / Switch "A" Circuit Range / Performance Problem; DTC P0122: Throttle / Pedal Position Sensor / Switch "A" Circuit Low Input; DTC P0123: Throttle / Pedal Position Sensor / Switch "A" Circuit High Input; DTC P0220: Throttle / Pedal Position Sensor / Switch "B" Circuit; DTC P0222: Throttle / Pedal Position Sensor / Switch "B" Circuit Low Input; DTC P0223: Throttle / Pedal Position Sensor / Switch "B" Circuit High Input; DTC P2135: Throttle / Pedal Position Sensor / Switch "A" / "B" Voltage Correlation
P0222Throttle / Pedal Position Sensor / Switch "B" Circuit Low InputThrottle position sensor (built into throttle body) - Short in VTA2 circuit - Open in VC circuit - ECMComes onDTC storedRefer to DTC P0120: Throttle / Pedal Position Sensor / Switch "A" Circuit Malfunction; DTC P0121: Throttle / Pedal Position Sensor / Switch "A" Circuit Range / Performance Problem; DTC P0122: Throttle / Pedal Position Sensor / Switch "A" Circuit Low Input; DTC P0123: Throttle / Pedal Position Sensor / Switch "A" Circuit High Input; DTC P0220: Throttle / Pedal Position Sensor / Switch "B" Circuit; DTC P0222: Throttle / Pedal Position Sensor / Switch "B" Circuit Low Input; DTC P0223: Throttle / Pedal Position Sensor / Switch "B" Circuit High Input; DTC P2135: Throttle / Pedal Position Sensor / Switch "A" / "B" Voltage Correlation
P0223Throttle / Pedal Position Sensor / Switch "B" Circuit High InputThrottle position sensor (built into throttle body) - Open in VTA2 circuit - Open in E2 circuit - Short between VC and VTA2 circuits - ECMComes onDTC storedRefer to DTC P0120: Throttle / Pedal Position Sensor / Switch "A" Circuit Malfunction; DTC P0121: Throttle / Pedal Position Sensor / Switch "A" Circuit Range / Performance Problem; DTC P0122: Throttle / Pedal Position Sensor / Switch "A" Circuit Low Input; DTC P0123: Throttle / Pedal Position Sensor / Switch "A" Circuit High Input; DTC P0220: Throttle / Pedal Position Sensor / Switch "B" Circuit; DTC P0222: Throttle / Pedal Position Sensor / Switch "B" Circuit Low Input; DTC P0223: Throttle / Pedal Position Sensor / Switch "B" Circuit High Input; DTC P2135: Throttle / Pedal Position Sensor / Switch "A" / "B" Voltage Correlation
P0300Random / Multiple Cylinder Misfire DetectedOpen or short in engine wire harness - Connector connection - Vacuum hose connections - Ignition system - Fuel injector - Fuel pressure - Mass air flow meter - Engine coolant temperature sensor - Compression pressure - Valve clearance - Valve timing - PCV valve and hose - PCV hose connections - Intake system - ECMComes on / Blinks*DTC storedRefer to DTC P0300: Random / Multiple Cylinder Misfire Detected; DTC P0301: Cylinder 1 Misfire Detected; DTC P0302: Cylinder 2 Misfire Detected; DTC P0303: Cylinder 3 Misfire Detected; DTC P0304: Cylinder 4 Misfire Detected
P0301Cylinder 1 Misfire DetectedOpen or short in engine wire harness - Connector connection - Vacuum hose connections - Ignition system - Fuel injector - Fuel pressure - Mass air flow meter - Engine coolant temperature sensor - Compression pressure - Valve clearance - Valve timing - PCV valve and hose - PCV hose connections - Intake system - ECMComes on / Blinks*DTC storedRefer to DTC P0300: Random / Multiple Cylinder Misfire Detected; DTC P0301: Cylinder 1 Misfire Detected; DTC P0302: Cylinder 2 Misfire Detected; DTC P0303: Cylinder 3 Misfire Detected; DTC P0304: Cylinder 4 Misfire Detected
P0302Cylinder 2 Misfire DetectedOpen or short in engine wire harness - Connector connection - Vacuum hose connections - Ignition system - Fuel injector - Fuel pressure - Mass air flow meter - Engine coolant temperature sensor - Compression pressure - Valve clearance - Valve timing - PCV valve and hose - PCV hose connections - Intake system - ECMComes on / Blinks*DTC storedRefer to DTC P0300: Random / Multiple Cylinder Misfire Detected; DTC P0301: Cylinder 1 Misfire Detected; DTC P0302: Cylinder 2 Misfire Detected; DTC P0303: Cylinder 3 Misfire Detected; DTC P0304: Cylinder 4 Misfire Detected
P0303Cylinder 3 Misfire DetectedOpen or short in engine wire harness - Connector connection - Vacuum hose connections - Ignition system - Fuel injector - Fuel pressure - Mass air flow meter - Engine coolant temperature sensor - Compression pressure - Valve clearance - Valve timing - PCV valve and hose - PCV hose connections - Intake system - ECMComes on / Blinks*DTC storedRefer to DTC P0300: Random / Multiple Cylinder Misfire Detected; DTC P0301: Cylinder 1 Misfire Detected; DTC P0302: Cylinder 2 Misfire Detected; DTC P0303: Cylinder 3 Misfire Detected; DTC P0304: Cylinder 4 Misfire Detected
P0304Cylinder 4 Misfire DetectedOpen or short in engine wire harness - Connector connection - Vacuum hose connections - Ignition system - Fuel injector - Fuel pressure - Mass air flow meter - Engine coolant temperature sensor - Compression pressure - Valve clearance - Valve timing - PCV valve and hose - PCV hose connections - Intake system - ECMComes on / Blinks*DTC storedRefer to DTC P0300: Random / Multiple Cylinder Misfire Detected; DTC P0301: Cylinder 1 Misfire Detected; DTC P0302: Cylinder 2 Misfire Detected; DTC P0303: Cylinder 3 Misfire Detected; DTC P0304: Cylinder 4 Misfire Detected
P0327Knock Sensor 1 Circuit Low Input (Bank 1 or Single Sensor)Short in knock sensor circuit - Knock sensor - ECMComes onDTC storedRefer to DTC P0327: Knock Sensor 1 Circuit Low Input (Bank 1 or Single Sensor); DTC P0328: Knock Sensor 1 Circuit High Input (Bank 1 or Single Sensor)
P0328Knock Sensor 1 Circuit High Input (Bank 1 or Single Sensor)Open in knock sensor circuit - Knock sensor - ECMComes onDTC storedRefer to DTC P0327: Knock Sensor 1 Circuit Low Input (Bank 1 or Single Sensor); DTC P0328: Knock Sensor 1 Circuit High Input (Bank 1 or Single Sensor)
P0335Crankshaft Position Sensor "A" CircuitOpen or short in crankshaft position sensor circuit - Crankshaft position sensor - Crankshaft position sensor plate - ECMComes onDTC storedRefer to DTC P0335: Crankshaft Position Sensor "A" Circuit; DTC P0339: Crankshaft Position Sensor "A" Circuit Intermittent
P0339Crankshaft Position Sensor "A" Circuit IntermittentOpen or short in crankshaft position sensor circuit - Crankshaft position sensor - Crankshaft position sensor plate - ECMDoes not come onDTC storedRefer to DTC P0335: Crankshaft Position Sensor "A" Circuit; DTC P0339: Crankshaft Position Sensor "A" Circuit Intermittent
P0340Camshaft Position Sensor "A" Circuit (Bank 1 or Single Sensor)Open or short in camshaft position sensor circuit - Camshaft position sensor - Camshaft - Timing chain jumped a tooth - ECMComes onDTC storedRefer to DTC P0340: Camshaft Position Sensor "A" Circuit (Bank 1 or Single Sensor)
P0351Ignition Coil "A" Primary / Secondary CircuitIgnition system - Open or short in IGF1 or IGT1 circuit between ignition coil and ECM - No. 1 ignition coil - ECMComes onDTC storedRefer to DTC P0351: Ignition Coil "A" Primary / Secondary Circuit; DTC P0352: Ignition Coil "B" Primary / Secondary Circuit; DTC P0353: Ignition Coil "C" Primary / Secondary Circuit; DTC P0354: Ignition Coil "D" Primary / Secondary Circuit
P0352Ignition Coil "B" Primary / Secondary CircuitIgnition system - Open or short in IGF1 or IGT2 circuit between ignition coil and ECM - No. 2 ignition coil - ECMComes onDTC storedRefer to DTC P0351: Ignition Coil "A" Primary / Secondary Circuit; DTC P0352: Ignition Coil "B" Primary / Secondary Circuit; DTC P0353: Ignition Coil "C" Primary / Secondary Circuit; DTC P0354: Ignition Coil "D" Primary / Secondary Circuit
P0353Ignition Coil "C" Primary / Secondary CircuitIgnition system - Open or short in IGF1 or IGT3 circuit between ignition coil and ECM - No. 3 ignition coil - ECMComes onDTC storedRefer to DTC P0351: Ignition Coil "A" Primary / Secondary Circuit; DTC P0352: Ignition Coil "B" Primary / Secondary Circuit; DTC P0353: Ignition Coil "C" Primary / Secondary Circuit; DTC P0354: Ignition Coil "D" Primary / Secondary Circuit
P0354Ignition Coil "D" Primary / Secondary CircuitIgnition system - Open or short in IGF1 or IGT4 circuit between ignition coil and ECM - No. 4 ignition coil - ECMComes onDTC storedRefer to DTC P0351: Ignition Coil "A" Primary / Secondary Circuit; DTC P0352: Ignition Coil "B" Primary / Secondary Circuit; DTC P0353: Ignition Coil "C" Primary / Secondary Circuit; DTC P0354: Ignition Coil "D" Primary / Secondary Circuit
P0420Catalyst System Efficiency Below Threshold (Bank 1)Gas leak from exhaust system - Air fuel ratio sensor (sensor 1) - Heated oxygen sensor (sensor 2) - Exhaust manifold converter sub-assembly (TWC: Front catalyst) - Center exhaust pipe assembly (TWC: Rear catalyst)Comes onDTC storedRefer to DTC P0420: Catalyst System Efficiency Below Threshold (Bank 1)
P043EEvaporative Emission System Reference Orifice Clog UpCanister pump module (Reference orifice, leak detection pump, vent valve) - Connector/wire harness (Canister pump module - ECM) - EVAP system hose (pipe from air inlet port to canister pump module, canister filter, fuel tank vent hose) - ECMComes onDTC storedRefer to DTC P043E: Evaporative Emission System Reference Orifice Clog Up; DTC P043F: Evaporative Emission System Reference Orifice High Flow; DTC P2401: Evaporative Emission Leak Detection Pump Stuck OFF; DTC P2402: Evaporative Emission Leak Detection Pump Stuck ON; DTC P2419: Evaporative Emission System Switching Valve Control Circuit Low
P043FEvaporative Emission System Reference Orifice High FlowCanister pump module (Reference orifice, leak detection pump, vent valve) - Connector/wire harness (Canister pump module - ECM) - EVAP system hose (pipe from air inlet port to canister pump module, canister filter, fuel tank vent hose) - ECMComes onDTC storedRefer to DTC P043E: Evaporative Emission System Reference Orifice Clog Up; DTC P043F: Evaporative Emission System Reference Orifice High Flow; DTC P2401: Evaporative Emission Leak Detection Pump Stuck OFF; DTC P2402: Evaporative Emission Leak Detection Pump Stuck ON; DTC P2419: Evaporative Emission System Switching Valve Control Circuit Low
P0441Evaporative Emission Control System Incorrect Purge FlowPurge VSV - Connector/wire harness (Purge VSV - ECM) - ECM - Canister pump module - Leak from EVAP system - Leak from EVAP line (Purge VSV - Intake manifold)Comes onDTC storedRefer to DTC P0441: Evaporative Emission Control System Incorrect Purge Flow
P0451Evaporative Emission Control System Pressure Sensor Range / PerformanceCanister pump module - Connector/wire harness (Canister pump module - ECM) - EVAP system hose (pipe from air inlet port to canister pump module, canister filter, fuel tank vent hose) - ECMComes onDTC storedRefer to DTC P0451: Evaporative Emission Control System Pressure Sensor Range / Performance; DTC P0452: Evaporative Emission Control System Pressure Sensor / Switch Low Input; DTC P0453: Evaporative Emission Control System Pressure Sensor / Switch High Input
P0452Evaporative Emission Control System Pressure Sensor / Switch Low InputCanister pump module - Connector/wire harness (Canister pump module - ECM) - EVAP system hose (pipe from air inlet port to canister pump module, canister filter, fuel tank vent hose) - ECMComes onDTC storedRefer to DTC P0451: Evaporative Emission Control System Pressure Sensor Range / Performance; DTC P0452: Evaporative Emission Control System Pressure Sensor / Switch Low Input; DTC P0453: Evaporative Emission Control System Pressure Sensor / Switch High Input
P0453Evaporative Emission Control System Pressure Sensor / Switch High InputCanister pump module - Connector/wire harness (Canister pump module - ECM) - EVAP system hose (pipe from air inlet port to canister pump module, canister filter, fuel tank vent hose) - ECMComes onDTC storedRefer to DTC P0451: Evaporative Emission Control System Pressure Sensor Range / Performance; DTC P0452: Evaporative Emission Control System Pressure Sensor / Switch Low Input; DTC P0453: Evaporative Emission Control System Pressure Sensor / Switch High Input
P0455Evaporative Emission Control System Leak Detected (Gross Leak)Fuel tank cap (loose) - Leak from EVAP line (Canister - Fuel tank) - Leak from EVAP line (Purge VSV - Canister) - Canister pump module - Leak from fuel tank - Leak from canisterComes onDTC storedRefer to DTC P0455: Evaporative Emission Control System Leak Detected (Gross Leak); DTC P0456: Evaporative Emission Control System Leak Detected (Very Small Leak)
P0456Evaporative Emission Control System Leak Detected (Very Small Leak)Fuel tank cap (loose) - Leak from EVAP line (Canister - Fuel tank) - Leak from EVAP line (Purge VSV - Canister) - Canister pump module - Leak from fuel tank - Leak from canisterComes onDTC storedRefer to DTC P0455: Evaporative Emission Control System Leak Detected (Gross Leak); DTC P0456: Evaporative Emission Control System Leak Detected (Very Small Leak)
P0500Vehicle Speed Sensor "A"Open or short in speed signal circuit - Speed meter circuit (wheel speed sensor, skid control ECU) - Combination meter - ECMComes onDTC storedRefer to DTC P0500: Vehicle Speed Sensor "A"
P0504Brake Switch "A" / "B" CorrelationShort in stop light switch signal circuit - STOP fuse - IGN fuse - Stop light switch - ECMDoes not come onDTC storedRefer to DTC P0504: Brake Switch "A" / "B" Correlation
P0505Idle Control System MalfunctionElectronic throttle control system - Intake system - PCV hose connections - ECMComes onDTC storedRefer to DTC P0505: Idle Control System Malfunction
P050ACold Start Idle Air Control System PerformanceThrottle body - Mass air flow meter - PCV system - Air cleaner filter element - Intake system - VVT system - ECM - Wire harness or connectorComes onDTC storedRefer to DTC P050A: Cold Start Idle Air Control System Performance
P050BCold Start Ignition Timing PerformanceThrottle body - Mass air flow meter - PCV system - Air cleaner filter element - Intake system - VVT system - ECM - Wire harness or connectorComes onDTC storedRefer to DTC P050B: Cold Start Ignition Timing Performance
P0560System VoltageOpen in back up power source circuit - Battery - Battery terminals - EFI MAIN fuse - ECMComes onDTC storedRefer to DTC P0560: System Voltage
P0604Random Access Memory (RAM)ECMComes onDTC storedRefer to DTC P0604: Random Access Memory (RAM)
P0606ECM / PCM ProcessorECMComes onDTC storedRefer to DTC P0606: ECM / PCM Processor
P0607Control Module PerformanceExhaust gas leak - Heated oxygen sensor - ECMComes onDTC storedRefer to DTC P0607: Control Module Performance
P060AInternal Control Module Monitoring Processor PerformanceECMComes onDTC storedRefer to DTC P060A: Internal Control Module Monitoring Processor Performance
P060DInternal Control Module Accelerator Pedal Position PerformanceECMComes onDTC storedRefer to DTC P060D: Internal Control Module Accelerator Pedal Position Performance
P060EInternal Control Module Throttle Position PerformanceECMComes onDTC storedRefer to DTC P060E: Internal Control Module Throttle Position Performance
P0617Starter Relay Circuit HighPark/neutral Position switch or clutch pedal switch - ST relay circuit - ECMComes onDTC storedRefer to DTC P0617: Starter Relay Circuit High
P062FInternal Control Module EEPROM ErrorECMComes onDTC storedRefer to DTC P062F: Internal Control Module EEPROM Error
P0630VIN not Programmed or Mismatch - ECM / PCMECMComes onDTC storedRefer to DTC P0630: VIN not Programmed or Mismatch - ECM / PCM
P0657Actuator Supply Voltage Circuit / OpenECMComes onDTC storedRefer to DTC P0657: Actuator Supply Voltage Circuit / Open
P0724Brake Switch "B" Circuit HighShort in stop light switch signal circuit - Stop light switch - ECMComes onDTC storedRefer to DTC P0724: Brake Switch "B" Circuit High
P1607Cruise Control Input ProcessorECMComes onDTC storedRefer to DTC P1607: Cruise Control Input Processor
P2102Throttle Actuator Control Motor Circuit LowOpen in throttle actuator circuit - Throttle actuator - ECMComes onDTC storedRefer to DTC P2102: Throttle Actuator Control Motor Circuit Low; DTC P2103: Throttle Actuator Control Motor Circuit High
P2103Throttle Actuator Control Motor Circuit HighShort in throttle actuator circuit - Throttle actuator - Throttle valve - Throttle body - ECMComes onDTC storedRefer to DTC P2102: Throttle Actuator Control Motor Circuit Low; DTC P2103: Throttle Actuator Control Motor Circuit High
P2111Throttle Actuator Control System - Stuck OpenThrottle actuator - Throttle body - Throttle valve - ECM - Wire harness or connectorComes onDTC storedRefer to DTC P2111: Throttle Actuator Control System - Stuck Open; DTC P2112: Throttle Actuator Control System - Stuck Closed
P2112Throttle Actuator Control System - Stuck ClosedThrottle actuator - Throttle body - Throttle valve - ECM - Wire harness or connectorComes onDTC storedRefer to DTC P2111: Throttle Actuator Control System - Stuck Open; DTC P2112: Throttle Actuator Control System - Stuck Closed
P2118Throttle Actuator Control Motor Current Range / PerformanceOpen in electronic throttle control system power source circuit - Battery - Battery terminals - ETCS fuse - ECMComes onDTC storedRefer to DTC P2118: Throttle Actuator Control Motor Current Range / Performance
P2119Throttle Actuator Control Throttle Body Range / PerformanceElectronic throttle control system - ECM - Wire harness or connectorComes onDTC storedRefer to DTC P2119: Throttle Actuator Control Throttle Body Range / Performance
P2120Throttle / Pedal Position Sensor / Switch "D" CircuitAccelerator pedal position sensor - ECMComes onDTC storedRefer to DTC P2120: Throttle / Pedal Position Sensor / Switch "D" Circuit; DTC P2122: Throttle / Pedal Position Sensor / Switch "D" Circuit Low Input; DTC P2123: Throttle / Pedal Position Sensor / Switch "D" Circuit High Input; DTC P2125: Throttle / Pedal Position Sensor / Switch "E" Circuit; DTC P2127: Throttle / Pedal Position Sensor / Switch "E" Circuit Low Input; DTC P2128: Throttle / Pedal Position Sensor / Switch "E" Circuit High Input; DTC P2138: Throttle / Pedal Position Sensor / Switch "D" / "E" Voltage Correlation
P2121Throttle / Pedal Position Sensor / Switch "D" Circuit Range / PerformanceAccelerator pedal position sensor - ECMComes onDTC storedRefer to DTC P2121: Throttle / Pedal Position Sensor / Switch "D" Circuit Range / Performance
P2122Throttle / Pedal Position Sensor / Switch "D" Circuit Low InputAccelerator pedal position sensor - Open in VCP1 circuit - Open or ground short in VPA circuit - ECMComes onDTC storedRefer to DTC P2120: Throttle / Pedal Position Sensor / Switch "D" Circuit; DTC P2122: Throttle / Pedal Position Sensor / Switch "D" Circuit Low Input; DTC P2123: Throttle / Pedal Position Sensor / Switch "D" Circuit High Input; DTC P2125: Throttle / Pedal Position Sensor / Switch "E" Circuit; DTC P2127: Throttle / Pedal Position Sensor / Switch "E" Circuit Low Input; DTC P2128: Throttle / Pedal Position Sensor / Switch "E" Circuit High Input; DTC P2138: Throttle / Pedal Position Sensor / Switch "D" / "E" Voltage Correlation
P2123Throttle / Pedal Position Sensor / Switch "D" Circuit High InputAccelerator pedal position sensor - Open in EPA circuit - ECMComes onDTC storedRefer to DTC P2120: Throttle / Pedal Position Sensor / Switch "D" Circuit; DTC P2122: Throttle / Pedal Position Sensor / Switch "D" Circuit Low Input; DTC P2123: Throttle / Pedal Position Sensor / Switch "D" Circuit High Input; DTC P2125: Throttle / Pedal Position Sensor / Switch "E" Circuit; DTC P2127: Throttle / Pedal Position Sensor / Switch "E" Circuit Low Input; DTC P2128: Throttle / Pedal Position Sensor / Switch "E" Circuit High Input; DTC P2138: Throttle / Pedal Position Sensor / Switch "D" / "E" Voltage Correlation
P2125Throttle / Pedal Position Sensor / Switch "E" CircuitAccelerator pedal position sensor - ECMComes onDTC storedRefer to DTC P2120: Throttle / Pedal Position Sensor / Switch "D" Circuit; DTC P2122: Throttle / Pedal Position Sensor / Switch "D" Circuit Low Input; DTC P2123: Throttle / Pedal Position Sensor / Switch "D" Circuit High Input; DTC P2125: Throttle / Pedal Position Sensor / Switch "E" Circuit; DTC P2127: Throttle / Pedal Position Sensor / Switch "E" Circuit Low Input; DTC P2128: Throttle / Pedal Position Sensor / Switch "E" Circuit High Input; DTC P2138: Throttle / Pedal Position Sensor / Switch "D" / "E" Voltage Correlation
P2127Throttle / Pedal Position Sensor / Switch "E" Circuit Low InputAccelerator pedal position sensor - Open in VCP2 circuit - Open or ground short in VPA2 circuit - ECMComes onDTC storedRefer to DTC P2120: Throttle / Pedal Position Sensor / Switch "D" Circuit; DTC P2122: Throttle / Pedal Position Sensor / Switch "D" Circuit Low Input; DTC P2123: Throttle / Pedal Position Sensor / Switch "D" Circuit High Input; DTC P2125: Throttle / Pedal Position Sensor / Switch "E" Circuit; DTC P2127: Throttle / Pedal Position Sensor / Switch "E" Circuit Low Input; DTC P2128: Throttle / Pedal Position Sensor / Switch "E" Circuit High Input; DTC P2138: Throttle / Pedal Position Sensor / Switch "D" / "E" Voltage Correlation
P2128Throttle / Pedal Position Sensor / Switch "E" Circuit High InputAccelerator pedal position sensor - Open in EPA2 circuit - ECMComes onDTC storedRefer to DTC P2120: Throttle / Pedal Position Sensor / Switch "D" Circuit; DTC P2122: Throttle / Pedal Position Sensor / Switch "D" Circuit Low Input; DTC P2123: Throttle / Pedal Position Sensor / Switch "D" Circuit High Input; DTC P2125: Throttle / Pedal Position Sensor / Switch "E" Circuit; DTC P2127: Throttle / Pedal Position Sensor / Switch "E" Circuit Low Input; DTC P2128: Throttle / Pedal Position Sensor / Switch "E" Circuit High Input; DTC P2138: Throttle / Pedal Position Sensor / Switch "D" / "E" Voltage Correlation
P2135Throttle / Pedal Position Sensor / Switch "A" / "B" Voltage CorrelationShort between VTA1 and VTA2 circuits - Throttle position sensor (built into throttle body) - ECMComes onDTC storedRefer to DTC P0120: Throttle / Pedal Position Sensor / Switch "A" Circuit Malfunction; DTC P0121: Throttle / Pedal Position Sensor / Switch "A" Circuit Range / Performance Problem; DTC P0122: Throttle / Pedal Position Sensor / Switch "A" Circuit Low Input; DTC P0123: Throttle / Pedal Position Sensor / Switch "A" Circuit High Input; DTC P0220: Throttle / Pedal Position Sensor / Switch "B" Circuit; DTC P0222: Throttle / Pedal Position Sensor / Switch "B" Circuit Low Input; DTC P0223: Throttle / Pedal Position Sensor / Switch "B" Circuit High Input; DTC P2135: Throttle / Pedal Position Sensor / Switch "A" / "B" Voltage Correlation
P2138Throttle / Pedal Position Sensor / Switch "D" / "E" Voltage CorrelationShort between VPA and VPA2 circuits - Accelerator pedal position sensor - ECMComes onDTC storedRefer to DTC P2120: Throttle / Pedal Position Sensor / Switch "D" Circuit; DTC P2122: Throttle / Pedal Position Sensor / Switch "D" Circuit Low Input; DTC P2123: Throttle / Pedal Position Sensor / Switch "D" Circuit High Input; DTC P2125: Throttle / Pedal Position Sensor / Switch "E" Circuit; DTC P2127: Throttle / Pedal Position Sensor / Switch "E" Circuit Low Input; DTC P2128: Throttle / Pedal Position Sensor / Switch "E" Circuit High Input; DTC P2138: Throttle / Pedal Position Sensor / Switch "D" / "E" Voltage Correlation
P2195Oxygen (A/F) Sensor Signal Stuck Lean (Bank 1 Sensor 1)Open or short in air fuel ratio sensor (sensor 1) circuit - Air fuel ratio sensor (sensor 1) - Intake system - Fuel pressure - Fuel injector - ECMComes onDTC storedRefer to DTC P2195: Oxygen (A/F) Sensor Signal Stuck Lean (Bank 1 Sensor 1); DTC P2196: Oxygen (A/F) Sensor Signal Stuck Rich (Bank 1 Sensor 1)
P2196Oxygen (A/F) Sensor Signal Stuck Rich (Bank 1 Sensor 1)Open or short in air fuel ratio sensor (sensor 1) circuit - Air fuel ratio sensor (sensor 1) - Intake system - Fuel pressure - Fuel injector - ECMComes onDTC storedRefer to DTC P2195: Oxygen (A/F) Sensor Signal Stuck Lean (Bank 1 Sensor 1); DTC P2196: Oxygen (A/F) Sensor Signal Stuck Rich (Bank 1 Sensor 1)
P2237Oxygen (A/F) Sensor Pumping Current Circuit / Open (Bank 1 Sensor 1)Open in air fuel ratio sensor (sensor 1) circuit - Air fuel ratio sensor (sensor 1) - ECMComes onDTC storedRefer to DTC P2237: Oxygen (A/F) Sensor Pumping Current Circuit / Open (Bank 1 Sensor 1); DTC P2238: Oxygen (A/F) Sensor Pumping Current Circuit Low (Bank 1 Sensor 1); DTC P2239: Oxygen (A/F) Sensor Pumping Current Circuit High (Bank 1 Sensor 1); DTC P2252: Oxygen (A/F) Sensor Reference Ground Circuit Low (Bank 1 Sensor 1); DTC P2253: Oxygen (A/F) Sensor Reference Ground Circuit High (Bank 1 Sensor 1)
P2238Oxygen (A/F) Sensor Pumping Current Circuit Low (Bank 1 Sensor 1)Open or short in air fuel ratio sensor (sensor 1) circuit - Air fuel ratio sensor (sensor 1) - ECMComes onDTC storedRefer to DTC P2237: Oxygen (A/F) Sensor Pumping Current Circuit / Open (Bank 1 Sensor 1); DTC P2238: Oxygen (A/F) Sensor Pumping Current Circuit Low (Bank 1 Sensor 1); DTC P2239: Oxygen (A/F) Sensor Pumping Current Circuit High (Bank 1 Sensor 1); DTC P2252: Oxygen (A/F) Sensor Reference Ground Circuit Low (Bank 1 Sensor 1); DTC P2253: Oxygen (A/F) Sensor Reference Ground Circuit High (Bank 1 Sensor 1)
P2239Oxygen (A/F) Sensor Pumping Current Circuit High (Bank 1 Sensor 1)Open or short in air fuel ratio sensor (sensor 1) circuit - Air fuel ratio sensor (sensor 1) - ECMComes onDTC storedRefer to DTC P2237: Oxygen (A/F) Sensor Pumping Current Circuit / Open (Bank 1 Sensor 1); DTC P2238: Oxygen (A/F) Sensor Pumping Current Circuit Low (Bank 1 Sensor 1); DTC P2239: Oxygen (A/F) Sensor Pumping Current Circuit High (Bank 1 Sensor 1); DTC P2252: Oxygen (A/F) Sensor Reference Ground Circuit Low (Bank 1 Sensor 1); DTC P2253: Oxygen (A/F) Sensor Reference Ground Circuit High (Bank 1 Sensor 1)
P2252Oxygen (A/F) Sensor Reference Ground Circuit Low (Bank 1 Sensor 1)Open or short in air fuel ratio sensor (sensor 1) circuit - Air fuel ratio sensor (sensor 1) - ECMComes onDTC storedRefer to DTC P2237: Oxygen (A/F) Sensor Pumping Current Circuit / Open (Bank 1 Sensor 1); DTC P2238: Oxygen (A/F) Sensor Pumping Current Circuit Low (Bank 1 Sensor 1); DTC P2239: Oxygen (A/F) Sensor Pumping Current Circuit High (Bank 1 Sensor 1); DTC P2252: Oxygen (A/F) Sensor Reference Ground Circuit Low (Bank 1 Sensor 1); DTC P2253: Oxygen (A/F) Sensor Reference Ground Circuit High (Bank 1 Sensor 1)
P2253Oxygen (A/F) Sensor Reference Ground Circuit High (Bank 1 Sensor 1)Open or short in air fuel ratio sensor (sensor 1) circuit - Air fuel ratio sensor (sensor 1) - ECMComes onDTC storedRefer to DTC P2237: Oxygen (A/F) Sensor Pumping Current Circuit / Open (Bank 1 Sensor 1); DTC P2238: Oxygen (A/F) Sensor Pumping Current Circuit Low (Bank 1 Sensor 1); DTC P2239: Oxygen (A/F) Sensor Pumping Current Circuit High (Bank 1 Sensor 1); DTC P2252: Oxygen (A/F) Sensor Reference Ground Circuit Low (Bank 1 Sensor 1); DTC P2253: Oxygen (A/F) Sensor Reference Ground Circuit High (Bank 1 Sensor 1)
P2401Evaporative Emission Leak Detection Pump Stuck OFFCanister pump module (Reference orifice, leak detection pump, vent valve) - Connector/wire harness (Canister pump module - ECM) - EVAP system hose (pipe from air inlet port to canister pump module, canister filter, fuel tank vent hose) - ECMComes onDTC storedRefer to DTC P043E: Evaporative Emission System Reference Orifice Clog Up; DTC P043F: Evaporative Emission System Reference Orifice High Flow; DTC P2401: Evaporative Emission Leak Detection Pump Stuck OFF; DTC P2402: Evaporative Emission Leak Detection Pump Stuck ON; DTC P2419: Evaporative Emission System Switching Valve Control Circuit Low
P2402Evaporative Emission Leak Detection Pump Stuck ONCanister pump module (Reference orifice, leak detection pump, vent valve) - Connector/wire harness (Canister pump module - ECM) - EVAP system hose (pipe from air inlet port to canister pump module, canister filter, fuel tank vent hose) - ECMComes onDTC storedRefer to DTC P043E: Evaporative Emission System Reference Orifice Clog Up; DTC P043F: Evaporative Emission System Reference Orifice High Flow; DTC P2401: Evaporative Emission Leak Detection Pump Stuck OFF; DTC P2402: Evaporative Emission Leak Detection Pump Stuck ON; DTC P2419: Evaporative Emission System Switching Valve Control Circuit Low
P2419Evaporative Emission System Switching Valve Control Circuit LowCanister pump module (Reference orifice, leak detection pump, vent valve) - Connector/wire harness (Canister pump module - ECM) - EVAP system hose (pipe from air inlet port to canister pump module, canister filter, fuel tank vent hose) - ECMComes onDTC storedRefer to DTC P043E: Evaporative Emission System Reference Orifice Clog Up; DTC P043F: Evaporative Emission System Reference Orifice High Flow; DTC P2401: Evaporative Emission Leak Detection Pump Stuck OFF; DTC P2402: Evaporative Emission Leak Detection Pump Stuck ON; DTC P2419: Evaporative Emission System Switching Valve Control Circuit Low
P2420Evaporative Emission System Switching Valve Control Circuit HighCanister pump module (Reference orifice, leak detection pump, vent valve) - Connector/wire harness (Canister pump module - ECM) - ECMComes onDTC storedRefer to DTC P2420: Evaporative Emission System Switching Valve Control Circuit High
P2610ECM / PCM Internal Engine Off Timer PerformanceECMComes onDTC storedRefer to DTC P2610: ECM / PCM Internal Engine Off Timer Performance

SFI SYSTEM