HOW TO PROCEED WITH TROUBLESHOOTING
HINT
*: Use the Techstream.
- VEHICLE BROUGHT TO WORKSHOP NEXT: Go to next step
- CUSTOMER PROBLEM ANALYSIS NEXT: Go to next step
- CONNECT TECHSTREAM TO DLC3 HINT: If the display indicates a communication fault with the Techstream, inspect the DLC3. NEXT: Go to next step
- CHECK DTC AND FREEZE FRAME DATA* HINT: Record or print DTCs and freeze frame data, if necessary. NEXT: Go to next step
- CLEAR DTC AND FREEZE FRAME DATA* NEXT: Go to next step
- CONDUCT VISUAL INSPECTION NEXT: Go to next step
- SET CHECK MODE DIAGNOSIS* NEXT: Go to next step
- 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
- SIMULATE SYMPTOMS NEXT: Go to next step
- CHECK DTC* Result Result Proceed to Trouble code A No code B B --> GO TO STEP 12 A: Go to next step
- REFER TO «DIAGNOSTIC TROUBLE CODE CHART»(ref-427311-S27019908472011101200000) DTC CHART NEXT: Go to next step
- 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
- 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
- CHECK ECM POWER SOURCE CIRCUIT NEXT: Go to next step
- CONDUCT CIRCUIT INSPECTION Result Result Proceed to Malfunction not confirmed A Malfunction confirmed B B --> GO TO STEP 18 A: Go to next step
- CHECK FOR INTERMITTENT PROBLEMS NEXT: Go to next step
- CONDUCT PARTS INSPECTION NEXT: Go to next step
- IDENTIFY PROBLEM NEXT: Go to next step
- ADJUST AND/OR REPAIR NEXT: Go to next step
- 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.
- 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
- CHECK WHETHER ENGINE CRANKS NG --> PROCEED TO «PROBLEM SYMPTOMS TABLE»(ref-427310-S17806415292011101200000) OK: Go to next step
- CHECK WHETHER ENGINE STARTS NG --> GO TO STEP 6 OK: Go to next step
- 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
- CHECK IDLE SPEED NG --> TROUBLESHOOT IDLE SPEED AND PROCEED TO NEXT STEP OK: Go to next step
- CHECK FUEL PRESSURE NG --> TROUBLESHOOT FUEL PRESSURE AND PROCEED TO NEXT STEP OK: Go to next step
- 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.
| Symptom | Suspected Area | See |
|---|---|---|
| Engine does not crank (Does not start) | Immobilizer system | Refer to PROBLEM SYMPTOMS TABLE |
| Battery | Refer to ON-VEHICLE INSPECTION | |
| VC output circuit | Refer to VC Output Circuit | |
| Starter signal circuit | Refer to Starter Signal Circuit | |
| Starter | Refer to INSPECTION | |
| No initial combustion (Does not start) | ECM power source circuit | Refer to ECM Power Source Circuit |
| Crankshaft position sensor | Refer to INSPECTION | |
| Camshaft position sensor | Refer to INSPECTION | |
| Ignition system | Refer to ON-VEHICLE INSPECTION | |
| Fuel pump control circuit | Refer to Fuel Pump Control Circuit | |
| Fuel injector circuit | Refer to Fuel Injector Circuit | |
| Valve timing | Refer to INSTALLATION | |
| VC output circuit | Refer to VC Output Circuit | |
| Starter signal circuit | Refer to Starter Signal Circuit | |
| ECM | Refer to REMOVAL | |
| Engine cranks normally but difficult to start | Fuel pump control circuit | Refer to Fuel Pump Control Circuit |
| Fuel pump | Refer to INSPECTION | |
| Fuel injector circuit | Refer to Fuel Injector Circuit | |
| Engine coolant temperature sensor | Refer to INSPECTION | |
| Intake system | Refer to ON-VEHICLE INSPECTION | |
| Ignition system | Refer to ON-VEHICLE INSPECTION | |
| Spark plug | Refer to ON-VEHICLE INSPECTION - Step 2 | |
| Throttle body | Refer to ON-VEHICLE INSPECTION | |
| Compression | Refer to ON-VEHICLE INSPECTION - Step 9 | |
| ECM power source circuit | Refer to ECM Power Source Circuit | |
| Incomplete intermittent combustion occurs (Does not start) | Fuel pump control circuit | Refer to Fuel Pump Control Circuit |
| Fuel pump | Refer to INSPECTION | |
| Ignition circuit | Refer to SYSTEM DIAGRAM | |
| Ignition system | Refer to ON-VEHICLE INSPECTION | |
| Fuel injector circuit | Refer to Fuel Injector Circuit | |
| ECM power source circuit | Refer to ECM Power Source Circuit | |
| Crankshaft position sensor | Refer to INSPECTION | |
| Camshaft position sensor | Refer to INSPECTION | |
| Valve timing | Refer to INSTALLATION | |
| High engine idle speed | Throttle body | Refer to ON-VEHICLE INSPECTION |
| Intake system | Refer to ON-VEHICLE INSPECTION | |
| A/C signal circuit | Refer to HOW TO PROCEED WITH TROUBLESHOOTING | |
| ECM power source circuit | Refer to ECM Power Source Circuit | |
| Engine coolant temperature sensor | Refer to INSPECTION | |
| PCV valve and hose | Refer to INSPECTION | |
| Low engine idle speed (Poor idling) | Throttle body | Refer to ON-VEHICLE INSPECTION |
| A/C signal circuit | Refer to HOW TO PROCEED WITH TROUBLESHOOTING | |
| Fuel pump control circuit | Refer to Fuel Pump Control Circuit | |
| Fuel pump | Refer to INSPECTION | |
| Intake system | Refer to ON-VEHICLE INSPECTION | |
| PCV valve and hose | Refer to INSPECTION | |
| Rough idling | Compression | Refer to ON-VEHICLE INSPECTION - Step 9 |
| Ignition system | Refer to ON-VEHICLE INSPECTION | |
| Spark plug | Refer to ON-VEHICLE INSPECTION - Step 2 | |
| Fuel injector circuit | Refer to Fuel Injector Circuit | |
| ECM power source circuit | Refer to ECM Power Source Circuit | |
| Fuel pump control circuit | Refer to Fuel Pump Control Circuit | |
| Fuel pump | Refer to INSPECTION | |
| Throttle body | Refer to ON-VEHICLE INSPECTION | |
| Intake system | Refer to ON-VEHICLE INSPECTION | |
| PCV valve and hose | Refer to INSPECTION | |
| Air fuel ratio sensor | Refer to INSPECTION | |
| Heated oxygen sensor | Refer to INSPECTION | |
| Mass air flow meter | Refer to ON-VEHICLE INSPECTION | |
| Idle hunting | Throttle body | Refer to ON-VEHICLE INSPECTION |
| Intake system | Refer to ON-VEHICLE INSPECTION | |
| PCV valve and hose | Refer to INSPECTION | |
| Air fuel ratio sensor | Refer to INSPECTION | |
| Mass air flow meter | Refer to ON-VEHICLE INSPECTION | |
| Hesitation/Poor acceleration | Fuel pump control circuit | Refer to Fuel Pump Control Circuit |
| Fuel pump | Refer to INSPECTION | |
| Spark plug | Refer to ON-VEHICLE INSPECTION - Step 2 | |
| Ignition system | Refer to ON-VEHICLE INSPECTION | |
| Fuel injector circuit | Refer to Fuel Injector Circuit | |
| ECM power source circuit | Refer to ECM Power Source Circuit | |
| Mass air flow meter | Refer to ON-VEHICLE INSPECTION | |
| Throttle body | Refer to ON-VEHICLE INSPECTION | |
| Intake system | Refer to ON-VEHICLE INSPECTION | |
| Valve timing | Refer to INSTALLATION | |
| Compression | Refer to ON-VEHICLE INSPECTION - Step 9 | |
| Brake override system | Refer to Brake Override System | |
| Surging (Poor driveability) | Spark plug | Refer to ON-VEHICLE INSPECTION - Step 2 |
| Fuel pump control circuit | Refer to Fuel Pump Control Circuit | |
| Fuel pump | Refer to INSPECTION | |
| Ignition system | Refer to ON-VEHICLE INSPECTION | |
| Fuel injector circuit | Refer to Fuel Injector Circuit | |
| ECM power source circuit | Refer to ECM Power Source Circuit | |
| Mass air flow meter | Refer to ON-VEHICLE INSPECTION | |
| Variable valve timing (VVT) system | Refer to DTC P0010: Camshaft Position "A" Actuator Circuit (Bank 1) | |
| Compression | Refer to ON-VEHICLE INSPECTION - Step 9 | |
| Engine stalls soon after starting | Fuel pump control circuit | Refer to Fuel Pump Control Circuit |
| Fuel pump | Refer to INSPECTION | |
| Spark plug | Refer to ON-VEHICLE INSPECTION - Step 2 | |
| Ignition system | Refer to ON-VEHICLE INSPECTION | |
| Fuel injector circuit | Refer to Fuel Injector Circuit | |
| ECM power source circuit | Refer to ECM Power Source Circuit | |
| Mass air flow meter | Refer to ON-VEHICLE INSPECTION | |
| Variable valve timing (VVT) system | Refer to DTC P0010: Camshaft Position "A" Actuator Circuit (Bank 1) | |
| Throttle body | Refer to ON-VEHICLE INSPECTION | |
| Intake system | Refer to ON-VEHICLE INSPECTION | |
| PCV valve and hose | Refer to INSPECTION | |
| Compression | Refer to ON-VEHICLE INSPECTION - Step 9 | |
| Engine stalls only during A/C operation | A/C signal circuit | Refer to HOW TO PROCEED WITH TROUBLESHOOTING |
| ECM | Refer to REMOVAL | |
| Unable/difficult to refuel | Refueling valve (canister) for 2WD | Refer to INSPECTION |
| Refueling valve (canister) for 4WD | Refer to INSPECTION |
SFI SYSTEM
Scheme 2
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 Color | Terminal Description | Condition | Specified Condition |
|---|---|---|---|---|
| A37-20 (BATT) - B29-104 (E1) | P - BR | Battery (for measuring battery voltage and for ECM memory) | Always | 11 to 14 V |
| A37-3 (+BM) - B29-104 (E1) | B - BR | Power source of throttle actuator | Always | 11 to 14 V |
| A37-28 (IGSW) - B29-104 (E1) | B - BR | Ignition switch | Ignition switch to ON | 11 to 14 V |
| A37-2 (+B) - B29-104 (E1) | B - BR | Power source of ECM | Ignition switch to ON | 11 to 14 V |
| A37-1 (+B2) - B29-104 (E1) | B - BR | Power source of ECM | Ignition switch to ON | 11 to 14 V |
| B29-100 (OC1+) - B29-123 (OC1-) | B - V | Camshaft timing oil control valve | Idling | Pulse generation ( (Scheme 3)waveform 1) |
| A37-44 (MREL) - B29-104 (E1) | L - BR | EFI relay | Ignition switch to ON | 11 to 14 V |
| B29-118 (VG) - B29-116 (E2G) | V - B | Mass air flow meter | Idling, Shift lever position P or N (neutral), A/C switch OFF | 0.5 to 3.0 V |
| B29-65 (THA) - B29-88 (ETHA) | P - BR-W | Intake 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 - BR | Engine coolant temperature sensor | Idling, Engine coolant temperature 80°C (176°F) | 0.2 to 1.0 V |
| B29-67 (VCTA) - B29-91 (ETA) | Y - BR | Power source of throttle position sensor (specific voltage) | Ignition switch to ON | 4.5 to 5.5 V |
| B29-115 (VTA1) - B29-91 (ETA) | LG - BR | Throttle position sensor (for engine control) | Ignition switch to ON, Accelerator pedal released | 0.5 to 1.1 V |
| Ignition switch to ON, Accelerator pedal fully depressed | 3.2 to 4.8 V | |||
| B29-114 (VTA2) - B29-91 (ETA) | R - BR | Throttle position sensor (for sensor malfunction detection) | Ignition switch to ON, Accelerator pedal released | 2.1 to 3.1 V |
| Ignition switch to ON, Accelerator pedal fully depressed | 4.6 to 5.0 V | |||
| A37-55 (VPA) - A37-59 (EPA) | L - R | Accelerator pedal position sensor (for engine control) | Ignition switch to ON, Accelerator pedal released | 0.5 to 1.1 V |
| Ignition switch to ON, Accelerator pedal fully depressed | 2.6 to 4.5 V | |||
| A37-56 (VPA2) - A37-60 (EPA2) | Y - BE | Accelerator pedal position sensor (for sensor malfunctioning detection) | Ignition switch to ON, Accelerator pedal released | 1.2 to 2.0 V |
| Ignition switch to ON, Accelerator pedal fully depressed | 3.4 to 4.7 V | |||
| A37-57 (VCPA) - A37-59 (EPA) | P - R | Power source of accelerator pedal position sensor (for VPA) | Ignition switch to ON | 4.5 to 5.5 V |
| A37-58 (VCP2) - A37-60 (EPA2) | B - BE | Power source of accelerator pedal position sensor (for VPA2) | Ignition switch to ON | 4.5 to 5.5 V |
| B29-109 (HA1A) - B29-46 (E04) | R - W-B | Air fuel ratio sensor heater | Idling with warm engine | Pulse generation ( (Scheme 4)waveform 2) |
| Ignition switch to ON | 11 to 14 V | |||
| B29-112 (A1A+) - B29-104 (E1) | Y -BR | Air fuel ratio sensor | Ignition switch to ON | 3.3 V*1 |
| B29-113 (A1A-) - B29-104 (E1) | L - BR | Air fuel ratio sensor | Ignition switch to ON | 3.0 V*1 |
| B29-47 (HT1B) - B29-86 (E03) | P - W-B | Heated oxygen sensor heater | Ignition switch to ON | 11 to 14 V |
| B29-64 (OX1B) - B29-87 (EX1B) | B - LG-B*3 B - W*4 | Heated oxygen sensor | Engine speed maintained at 2500 RPM for 2 minutes after warming up sensor | Pulse 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-B | Fuel injector | Ignition switch to ON | 11 to 14 V |
| Idling | Pulse generation ( (Scheme 6)waveform 4) | |||
| B29-110 (KNK1) - B29-111 (EKNK) | B - W | Knock sensor | Engine speed maintained at 4000 RPM after warming up engine | Pulse generation ( (Scheme 7)waveform 5) |
| B29-99 (G2+) - B29-98 (G2-) | R - W | Camshaft position sensor | Idling | Pulse generation ( (Scheme 8)waveform 6) |
| B29-122 (NE+) - B29-121 (NE-) | R - G | Crankshaft position sensor | Idling | Pulse 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 - BR | Ignition coil (ignition signal) | Idling | Pulse generation ( (Scheme 9)waveform 7) |
| B29-81 (IGF1) - B29-104 (E1) | Y - BR | Ignition coil (ignition confirmation signal) | Ignition switch to ON | 4.5 to 5.5 V |
| Idling | Pulse generation ( (Scheme 9)waveform 7) | |||
| B29-49 (PRG) - B29-104 (E1) | L-B - BR | Purge VSV | Ignition switch to ON | 11 to 14 V |
| Idling | Pulse generation ( (Scheme 10)waveform 8) | |||
| A37-8 (SPD) - B29-104 (E1) | V - BR | Speed signal from combination meter | Driving at 12 mph (20 km/h) | Pulse generation ( (Scheme 11)waveform 9) |
| A37-48 (STA) - B29-104 (E1) | LG - BR | Starter signal | Cranking | 5.5 V or more |
| B29-52 (NSW)*2 - B29-104 (E1) | W - BR | Park/neutral position switch signal | Ignition switch to ON, transmission gear position in P or N | Below 1.5 V |
| Ignition switch to ON, transmission gear position in except P or N | 6.0 V or more | |||
| A37-36 (STP) - B29-104 (E1) | L - BR | Stop light switch | Brake pedal depressed | 7.5 to 14 V |
| Brake pedal released | Below 1.5 V | |||
| A37-35 (ST1-) - B29-104 (E1) | R - BR | Stop light switch (opposite to STP terminal) | Ignition switch to ON, Brake pedal depressed | Below 1.5 V |
| Ignition switch to ON, Brake pedal released | 7.5 to 14 V | |||
| B29-42 (M+) - B29-43 (ME01) | P - W-B | Throttle actuator | Idling with warm engine | Pulse generation ( (Scheme 12)waveform 10) |
| B29-41 (M-) - B29-43 (ME01) | L - W-B | Throttle actuator | Idling with warm engine | Pulse generation ( (Scheme 13)waveform 11) |
| A37-7 (FC) - B29-104 (E1) | BE - BR | Fuel pump control | Ignition switch to ON | 11 to 14 V |
| Idling | Below 1.5 V | |||
| A37-24 (W) - B29-104 (E1) | R - BR | MIL | Ignition switch to ON (MIL goes on) | Below 1.5 V |
| Idling | 11 to 14 V | |||
| A37-27 (TC) - B29-104 (E1) | P - BR | Terminal TC of DLC3 | Ignition switch to ON | 11 to 14 V |
| A37-15 (TACH) - B29-104 (E1) | GR - BR | Engine speed | Idling | Pulse generation ( (Scheme 14)waveform 12) |
| A37-42 (VPMP) - B29-104 (E1) | W - BR | Vent valve (built into canister pump module) | Ignition switch to ON | 11 to 14 V |
| A37-34 (MPMP) - B29-104 (E1) | R - BR | Leak detection pump (built into canister pump module) | Leak detection pump OFF | Below 3 V |
| Leak detection pump ON | 11 to 14 V | |||
| B29-70 (VCPP) - B29-94 (EPPM) | V - G | Power source for canister pressure sensor (specific voltage) | Ignition switch to ON | 4.5 to 5.5 V |
| B29-71 (PPMP) - B29-94 (EPPM) | Y - G | Canister pressure sensor (built into canister pump module) | Ignition switch to ON | 3 to 3.6 V |
| A37-31 (ELS1) - B29-104 (E1) | B - BR | Electric load | Taillight switch ON | 7.5 to 14 V |
| Taillight switch OFF | Below 1.5 V | |||
| A37-33 (ELS3) - B29-104 (E1) | G - BR | Electric load | Defogger switch ON | 7.5 to 14 V |
| Defogger switch OFF | Below 1.5 V | |||
| A37-21 (FANL) - B29-104 (E1) | R - BR | No. 3 fan relay | Ignition switch to ON | 11 to 14 V |
| Idling with A/C ON, or high engine coolant temperature | Below 1.5 V | |||
| A37-22 (FANH) - B29-104 (E1) | W - BR | No. 1 and No. 2 fan relay | Idling with high engine coolant temperature | Below 1.5 V |
| B29-50 (ALT) - B29-104 (E1) | L - BR | Generator | Ignition switch to ON | 11 to 14 V |
| A37-41 (CANH) - B29-104 (E1) | Y - BR | CAN communication line | Ignition switch to ON | Pulse generation ( (Scheme 15)waveform 13) |
| A37-49 (CANL) - B29-104 (E1) | W - BR | CAN communication line | Ignition switch to ON | Pulse 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 4
Scheme 5
Scheme 6
Scheme 7
Scheme 8
Scheme 9
Scheme 10
Scheme 11
Scheme 12
Scheme 13
Scheme 14
Scheme 15
Scheme 16
- WAVEFORM 1 CAMSHAFT TIMING OIL CONTROL VALVE ECM Terminal Name Between OC1+ and OC1- Tester Range 5 V/DIV., 1 msec./DIV. Condition Idling
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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
- 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.
- 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).
- 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).
- DLC3 (Data Link Connector 3) Check DLC3. Refer to «GENERAL INFORMATION»(ref-427305-S15629809542011101200000) .
- 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.
- BATTERY VOLTAGE Standard voltage 11 to 14 V If voltage is below 11 V, replace or recharge the battery before proceeding.
- 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) .
- 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
- DTCs which are stored in the ECM can be displayed on the Techstream. The Techstream can display current, pending and permanent DTCs.
- If a malfunction is detected during the current driving cycle, current and permanent DTCs are stored.
- 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.
- 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.
- 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 DTC | Store condition | Malfunction detected |
|---|---|---|
| Clear condition | System determined to be normal or DTCs cleared using Techstream or Cable disconnected from negative battery terminal | |
| Current DTC | Store condition | Malfunction detected (2nd trip) |
| Clear condition | No malfunctions in 40 driving cycles or DTCs cleared using Techstream or Cable disconnected from negative battery terminal | |
| Permanent DTC | Store condition | Malfunction detected (2nd trip) |
| Clear condition | Ignition 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) | |
| MIL | ON | Malfunction detected (2nd trip) |
| OFF | Ignition 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 19
HINT
- Obtaining a normal judgment and performing a universal trip driving pattern can be done in the same driving cycle or in different driving cycles.
- It is unnecessary to obtain a normal judgment if the DTCs are misfire or fuel system DTCs.
Scheme 20
- 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) .
- 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.
- 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.
- 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
- 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.
- 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 Code | Detection Item | Trouble Area | MIL | Memory | See |
|---|---|---|---|---|---|
| P0010 | Camshaft Position "A" Actuator Circuit (Bank 1) | Open or short in camshaft timing oil control valve assembly circuit - Camshaft timing oil control valve assembly - ECM | Comes on | DTC stored | Refer to DTC P0010: Camshaft Position "A" Actuator Circuit (Bank 1) |
| P0011 | Camshaft 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 - ECM | Comes on | DTC stored | Refer to DTC P0011: Camshaft Position "A" - Timing Over-Advanced or System Performance (Bank 1); DTC P0012: Camshaft Position "A" - Timing Over-Retarded (Bank 1) |
| P0012 | Camshaft Position "A" - Timing Over-Retarded (Bank 1) | Valve timing - Camshaft timing oil control valve assembly - Oil control valve filter - Camshaft timing gear assembly - ECM | Comes on | DTC stored | Refer to DTC P0011: Camshaft Position "A" - Timing Over-Advanced or System Performance (Bank 1); DTC P0012: Camshaft Position "A" - Timing Over-Retarded (Bank 1) |
| P0016 | Crankshaft 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 - ECM | Comes on | DTC stored | Refer to DTC P0016: Crankshaft Position - Camshaft Position Correlation (Bank 1 Sensor A) |
| P0031 | Oxygen (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) - ECM | Comes on | DTC stored | Refer 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) |
| P0032 | Oxygen (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) - ECM | Comes on | DTC stored | Refer 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) |
| P0037 | Oxygen Sensor Heater Control Circuit Low (Bank 1 Sensor 2) | Open in heated oxygen sensor (sensor 2) heater circuit - Heated oxygen sensor (sensor 2) heater - ECM | Comes on | DTC stored | Refer 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) |
| P0038 | Oxygen Sensor Heater Control Circuit High (Bank 1 Sensor 2) | Short in heated oxygen sensor (sensor 2) heater circuit - Heated oxygen sensor (sensor 2) heater - ECM | Comes on | DTC stored | Refer 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) |
| P0101 | Mass Air Flow Circuit Range / Performance Problem | Mass air flow meter - Intake system - PCV hose connections | Comes on | DTC stored | Refer to DTC P0101: Mass Air Flow Circuit Range / Performance Problem |
| P0102 | Mass or Volume Air Flow Circuit Low Input | Open or short in mass air flow meter circuit - Mass air flow meter - ECM | Comes on | DTC stored | Refer to DTC P0102: Mass or Volume Air Flow Circuit Low Input; DTC P0103: Mass or Volume Air Flow Circuit High Input |
| P0103 | Mass or Volume Air Flow Circuit High Input | Open or short in mass air flow meter circuit - Mass air flow meter - ECM | Comes on | DTC stored | Refer to DTC P0102: Mass or Volume Air Flow Circuit Low Input; DTC P0103: Mass or Volume Air Flow Circuit High Input |
| P0111 | Intake Air Temperature Sensor Gradient Too High | Mass air flow meter | Comes on | DTC stored | Refer to DTC P0111: Intake Air Temperature Sensor Gradient Too High |
| P0112 | Intake Air Temperature Circuit Low Input | Short in intake air temperature sensor circuit - Intake air temperature sensor (built into mass air flow meter) - ECM | Comes on | DTC stored | Refer to DTC P0112: Intake Air Temperature Circuit Low Input; DTC P0113: Intake Air Temperature Circuit High Input |
| P0113 | Intake Air Temperature Circuit High Input | Open in intake air temperature sensor circuit - Intake air temperature sensor (built into mass air flow meter) - ECM | Comes on | DTC stored | Refer to DTC P0112: Intake Air Temperature Circuit Low Input; DTC P0113: Intake Air Temperature Circuit High Input |
| P0115 | Engine Coolant Temperature Circuit Malfunction | Open or short in engine coolant temperature sensor circuit - Engine coolant temperature sensor - ECM | Comes on | DTC stored | Refer to DTC P0115: Engine Coolant Temperature Circuit Malfunction; DTC P0117: Engine Coolant Temperature Circuit Low Input; DTC P0118: Engine Coolant Temperature Circuit High Input |
| P0116 | Engine Coolant Temperature Circuit Range / Performance Problem | Thermostat - Engine coolant temperature sensor | Comes on | DTC stored | Refer to DTC P0116: Engine Coolant Temperature Circuit Range / Performance Problem |
| P0117 | Engine Coolant Temperature Circuit Low Input | Short in engine coolant temperature sensor circuit - Engine coolant temperature sensor - ECM | Comes on | DTC stored | Refer to DTC P0115: Engine Coolant Temperature Circuit Malfunction; DTC P0117: Engine Coolant Temperature Circuit Low Input; DTC P0118: Engine Coolant Temperature Circuit High Input |
| P0118 | Engine Coolant Temperature Circuit High Input | Open in engine coolant temperature sensor circuit - Engine coolant temperature sensor - ECM | Comes on | DTC stored | Refer to DTC P0115: Engine Coolant Temperature Circuit Malfunction; DTC P0117: Engine Coolant Temperature Circuit Low Input; DTC P0118: Engine Coolant Temperature Circuit High Input |
| P011B | Engine Coolant Temperature / Intake Air Temperature Correlation | Intake air temperature sensor (built into mass air flow meter) - Engine coolant temperature sensor - ECM | Comes on | DTC stored | Refer to DTC P011B: Engine Coolant Temperature / Intake Air Temperature Correlation |
| P0120 | Throttle / Pedal Position Sensor / Switch "A" Circuit Malfunction | Throttle position sensor (built into throttle body) - ECM | Comes on | DTC stored | Refer 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 |
| P0121 | Throttle / Pedal Position Sensor / Switch "A" Circuit Range / Performance Problem | Throttle position sensor (built into throttle body) - Throttle position sensor circuit - ECM | Comes on | DTC stored | Refer 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 |
| P0122 | Throttle / Pedal Position Sensor / Switch "A" Circuit Low Input | Throttle position sensor (built into throttle body) - Short in VTA1 circuit - Open in VC circuit - ECM | Comes on | DTC stored | Refer 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 |
| P0123 | Throttle / Pedal Position Sensor / Switch "A" Circuit High Input | Throttle position sensor (built into throttle body) - Open in VTA1 circuit - Open in E2 circuit - Short between VC and VTA1 circuits - ECM | Comes on | DTC stored | Refer 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 |
| P0125 | Insufficient Coolant Temperature for Closed Loop Fuel Control | Cooling system - Engine coolant temperature sensor - Thermostat | Comes on | DTC stored | Refer to DTC P0125: Insufficient Coolant Temperature for Closed Loop Fuel Control |
| P0128 | Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature) | Thermostat - Cooling system - Engine coolant temperature sensor - ECM | Comes on | DTC stored | Refer to DTC P0128: Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature) |
| P0136 | Oxygen 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 system | Comes on | DTC stored | Refer 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) |
| P0137 | Oxygen 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 on | DTC stored | Refer 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) |
| P0138 | Oxygen Sensor Circuit High Voltage (Bank 1 Sensor 2) | Short in heated oxygen sensor (sensor 2) circuit - Heated oxygen sensor (sensor 2) - ECM | Comes on | DTC stored | Refer 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) |
| P0139 | Oxygen Sensor Circuit Slow Response (Bank 1 Sensor 2) | Short in heated oxygen sensor (sensor 2) circuit - Heated oxygen sensor (sensor 2) - ECM | Comes on | DTC stored | Refer 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) |
| P0141 | Oxygen 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 - ECM | Comes on | DTC stored | Refer 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) |
| P014C | A/F Sensor Slow Response - Rich to Lean Bank 1 Sensor 1 | Air fuel ratio sensor (sensor 1) - Air fuel ratio sensor (sensor 1) heater - ECM | Comes on | DTC stored | Refer 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 |
| P014D | A/F Sensor Slow Response - Lean to Rich Bank 1 Sensor 1 | Air fuel ratio sensor (sensor 1) - Air fuel ratio sensor (sensor 1) heater - ECM | Comes on | DTC stored | Refer 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 |
| P015A | A/F Sensor Delayed Response - Rich to Lean Bank 1 Sensor 1 | Air fuel ratio sensor (sensor 1) - Air fuel ratio sensor (sensor 1) heater - ECM | Comes on | DTC stored | Refer 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 |
| P015B | A/F Sensor Delayed Response - Lean to Rich Bank 1 Sensor 1 | Air fuel ratio sensor (sensor 1) - Air fuel ratio sensor (sensor 1) heater - ECM | Comes on | DTC stored | Refer 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 |
| P0171 | System 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 connector | Comes on | DTC stored | Refer to DTC P0171: System Too Lean (Bank 1); DTC P0172: System Too Rich (Bank 1) |
| P0172 | System 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 connector | Comes on | DTC stored | Refer to DTC P0171: System Too Lean (Bank 1); DTC P0172: System Too Rich (Bank 1) |
| P0220 | Throttle / Pedal Position Sensor / Switch "B" Circuit | Throttle position sensor (built into throttle body) - ECM | Comes on | DTC stored | Refer 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 |
| P0222 | Throttle / Pedal Position Sensor / Switch "B" Circuit Low Input | Throttle position sensor (built into throttle body) - Short in VTA2 circuit - Open in VC circuit - ECM | Comes on | DTC stored | Refer 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 |
| P0223 | Throttle / Pedal Position Sensor / Switch "B" Circuit High Input | Throttle position sensor (built into throttle body) - Open in VTA2 circuit - Open in E2 circuit - Short between VC and VTA2 circuits - ECM | Comes on | DTC stored | Refer 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 |
| P0300 | Random / Multiple Cylinder Misfire Detected | Open 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 - ECM | Comes on / Blinks* | DTC stored | Refer 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 |
| P0301 | Cylinder 1 Misfire Detected | Open 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 - ECM | Comes on / Blinks* | DTC stored | Refer 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 |
| P0302 | Cylinder 2 Misfire Detected | Open 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 - ECM | Comes on / Blinks* | DTC stored | Refer 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 |
| P0303 | Cylinder 3 Misfire Detected | Open 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 - ECM | Comes on / Blinks* | DTC stored | Refer 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 |
| P0304 | Cylinder 4 Misfire Detected | Open 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 - ECM | Comes on / Blinks* | DTC stored | Refer 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 |
| P0327 | Knock Sensor 1 Circuit Low Input (Bank 1 or Single Sensor) | Short in knock sensor circuit - Knock sensor - ECM | Comes on | DTC stored | Refer 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) |
| P0328 | Knock Sensor 1 Circuit High Input (Bank 1 or Single Sensor) | Open in knock sensor circuit - Knock sensor - ECM | Comes on | DTC stored | Refer 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) |
| P0335 | Crankshaft Position Sensor "A" Circuit | Open or short in crankshaft position sensor circuit - Crankshaft position sensor - Crankshaft position sensor plate - ECM | Comes on | DTC stored | Refer to DTC P0335: Crankshaft Position Sensor "A" Circuit; DTC P0339: Crankshaft Position Sensor "A" Circuit Intermittent |
| P0339 | Crankshaft Position Sensor "A" Circuit Intermittent | Open or short in crankshaft position sensor circuit - Crankshaft position sensor - Crankshaft position sensor plate - ECM | Does not come on | DTC stored | Refer to DTC P0335: Crankshaft Position Sensor "A" Circuit; DTC P0339: Crankshaft Position Sensor "A" Circuit Intermittent |
| P0340 | Camshaft 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 - ECM | Comes on | DTC stored | Refer to DTC P0340: Camshaft Position Sensor "A" Circuit (Bank 1 or Single Sensor) |
| P0351 | Ignition Coil "A" Primary / Secondary Circuit | Ignition system - Open or short in IGF1 or IGT1 circuit between ignition coil and ECM - No. 1 ignition coil - ECM | Comes on | DTC stored | Refer 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 |
| P0352 | Ignition Coil "B" Primary / Secondary Circuit | Ignition system - Open or short in IGF1 or IGT2 circuit between ignition coil and ECM - No. 2 ignition coil - ECM | Comes on | DTC stored | Refer 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 |
| P0353 | Ignition Coil "C" Primary / Secondary Circuit | Ignition system - Open or short in IGF1 or IGT3 circuit between ignition coil and ECM - No. 3 ignition coil - ECM | Comes on | DTC stored | Refer 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 |
| P0354 | Ignition Coil "D" Primary / Secondary Circuit | Ignition system - Open or short in IGF1 or IGT4 circuit between ignition coil and ECM - No. 4 ignition coil - ECM | Comes on | DTC stored | Refer 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 |
| P0420 | Catalyst 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 on | DTC stored | Refer to DTC P0420: Catalyst System Efficiency Below Threshold (Bank 1) |
| P043E | Evaporative Emission System Reference Orifice Clog Up | Canister 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) - ECM | Comes on | DTC stored | Refer 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 |
| P043F | Evaporative Emission System Reference Orifice High Flow | Canister 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) - ECM | Comes on | DTC stored | Refer 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 |
| P0441 | Evaporative Emission Control System Incorrect Purge Flow | Purge VSV - Connector/wire harness (Purge VSV - ECM) - ECM - Canister pump module - Leak from EVAP system - Leak from EVAP line (Purge VSV - Intake manifold) | Comes on | DTC stored | Refer to DTC P0441: Evaporative Emission Control System Incorrect Purge Flow |
| P0451 | Evaporative Emission Control System Pressure Sensor Range / Performance | Canister 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) - ECM | Comes on | DTC stored | Refer 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 |
| P0452 | Evaporative Emission Control System Pressure Sensor / Switch Low Input | Canister 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) - ECM | Comes on | DTC stored | Refer 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 |
| P0453 | Evaporative Emission Control System Pressure Sensor / Switch High Input | Canister 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) - ECM | Comes on | DTC stored | Refer 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 |
| P0455 | Evaporative 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 canister | Comes on | DTC stored | Refer to DTC P0455: Evaporative Emission Control System Leak Detected (Gross Leak); DTC P0456: Evaporative Emission Control System Leak Detected (Very Small Leak) |
| P0456 | Evaporative 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 canister | Comes on | DTC stored | Refer to DTC P0455: Evaporative Emission Control System Leak Detected (Gross Leak); DTC P0456: Evaporative Emission Control System Leak Detected (Very Small Leak) |
| P0500 | Vehicle Speed Sensor "A" | Open or short in speed signal circuit - Speed meter circuit (wheel speed sensor, skid control ECU) - Combination meter - ECM | Comes on | DTC stored | Refer to DTC P0500: Vehicle Speed Sensor "A" |
| P0504 | Brake Switch "A" / "B" Correlation | Short in stop light switch signal circuit - STOP fuse - IGN fuse - Stop light switch - ECM | Does not come on | DTC stored | Refer to DTC P0504: Brake Switch "A" / "B" Correlation |
| P0505 | Idle Control System Malfunction | Electronic throttle control system - Intake system - PCV hose connections - ECM | Comes on | DTC stored | Refer to DTC P0505: Idle Control System Malfunction |
| P050A | Cold Start Idle Air Control System Performance | Throttle body - Mass air flow meter - PCV system - Air cleaner filter element - Intake system - VVT system - ECM - Wire harness or connector | Comes on | DTC stored | Refer to DTC P050A: Cold Start Idle Air Control System Performance |
| P050B | Cold Start Ignition Timing Performance | Throttle body - Mass air flow meter - PCV system - Air cleaner filter element - Intake system - VVT system - ECM - Wire harness or connector | Comes on | DTC stored | Refer to DTC P050B: Cold Start Ignition Timing Performance |
| P0560 | System Voltage | Open in back up power source circuit - Battery - Battery terminals - EFI MAIN fuse - ECM | Comes on | DTC stored | Refer to DTC P0560: System Voltage |
| P0604 | Random Access Memory (RAM) | ECM | Comes on | DTC stored | Refer to DTC P0604: Random Access Memory (RAM) |
| P0606 | ECM / PCM Processor | ECM | Comes on | DTC stored | Refer to DTC P0606: ECM / PCM Processor |
| P0607 | Control Module Performance | Exhaust gas leak - Heated oxygen sensor - ECM | Comes on | DTC stored | Refer to DTC P0607: Control Module Performance |
| P060A | Internal Control Module Monitoring Processor Performance | ECM | Comes on | DTC stored | Refer to DTC P060A: Internal Control Module Monitoring Processor Performance |
| P060D | Internal Control Module Accelerator Pedal Position Performance | ECM | Comes on | DTC stored | Refer to DTC P060D: Internal Control Module Accelerator Pedal Position Performance |
| P060E | Internal Control Module Throttle Position Performance | ECM | Comes on | DTC stored | Refer to DTC P060E: Internal Control Module Throttle Position Performance |
| P0617 | Starter Relay Circuit High | Park/neutral Position switch or clutch pedal switch - ST relay circuit - ECM | Comes on | DTC stored | Refer to DTC P0617: Starter Relay Circuit High |
| P062F | Internal Control Module EEPROM Error | ECM | Comes on | DTC stored | Refer to DTC P062F: Internal Control Module EEPROM Error |
| P0630 | VIN not Programmed or Mismatch - ECM / PCM | ECM | Comes on | DTC stored | Refer to DTC P0630: VIN not Programmed or Mismatch - ECM / PCM |
| P0657 | Actuator Supply Voltage Circuit / Open | ECM | Comes on | DTC stored | Refer to DTC P0657: Actuator Supply Voltage Circuit / Open |
| P0724 | Brake Switch "B" Circuit High | Short in stop light switch signal circuit - Stop light switch - ECM | Comes on | DTC stored | Refer to DTC P0724: Brake Switch "B" Circuit High |
| P1607 | Cruise Control Input Processor | ECM | Comes on | DTC stored | Refer to DTC P1607: Cruise Control Input Processor |
| P2102 | Throttle Actuator Control Motor Circuit Low | Open in throttle actuator circuit - Throttle actuator - ECM | Comes on | DTC stored | Refer to DTC P2102: Throttle Actuator Control Motor Circuit Low; DTC P2103: Throttle Actuator Control Motor Circuit High |
| P2103 | Throttle Actuator Control Motor Circuit High | Short in throttle actuator circuit - Throttle actuator - Throttle valve - Throttle body - ECM | Comes on | DTC stored | Refer to DTC P2102: Throttle Actuator Control Motor Circuit Low; DTC P2103: Throttle Actuator Control Motor Circuit High |
| P2111 | Throttle Actuator Control System - Stuck Open | Throttle actuator - Throttle body - Throttle valve - ECM - Wire harness or connector | Comes on | DTC stored | Refer to DTC P2111: Throttle Actuator Control System - Stuck Open; DTC P2112: Throttle Actuator Control System - Stuck Closed |
| P2112 | Throttle Actuator Control System - Stuck Closed | Throttle actuator - Throttle body - Throttle valve - ECM - Wire harness or connector | Comes on | DTC stored | Refer to DTC P2111: Throttle Actuator Control System - Stuck Open; DTC P2112: Throttle Actuator Control System - Stuck Closed |
| P2118 | Throttle Actuator Control Motor Current Range / Performance | Open in electronic throttle control system power source circuit - Battery - Battery terminals - ETCS fuse - ECM | Comes on | DTC stored | Refer to DTC P2118: Throttle Actuator Control Motor Current Range / Performance |
| P2119 | Throttle Actuator Control Throttle Body Range / Performance | Electronic throttle control system - ECM - Wire harness or connector | Comes on | DTC stored | Refer to DTC P2119: Throttle Actuator Control Throttle Body Range / Performance |
| P2120 | Throttle / Pedal Position Sensor / Switch "D" Circuit | Accelerator pedal position sensor - ECM | Comes on | DTC stored | Refer 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 |
| P2121 | Throttle / Pedal Position Sensor / Switch "D" Circuit Range / Performance | Accelerator pedal position sensor - ECM | Comes on | DTC stored | Refer to DTC P2121: Throttle / Pedal Position Sensor / Switch "D" Circuit Range / Performance |
| P2122 | Throttle / Pedal Position Sensor / Switch "D" Circuit Low Input | Accelerator pedal position sensor - Open in VCP1 circuit - Open or ground short in VPA circuit - ECM | Comes on | DTC stored | Refer 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 |
| P2123 | Throttle / Pedal Position Sensor / Switch "D" Circuit High Input | Accelerator pedal position sensor - Open in EPA circuit - ECM | Comes on | DTC stored | Refer 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 |
| P2125 | Throttle / Pedal Position Sensor / Switch "E" Circuit | Accelerator pedal position sensor - ECM | Comes on | DTC stored | Refer 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 |
| P2127 | Throttle / Pedal Position Sensor / Switch "E" Circuit Low Input | Accelerator pedal position sensor - Open in VCP2 circuit - Open or ground short in VPA2 circuit - ECM | Comes on | DTC stored | Refer 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 |
| P2128 | Throttle / Pedal Position Sensor / Switch "E" Circuit High Input | Accelerator pedal position sensor - Open in EPA2 circuit - ECM | Comes on | DTC stored | Refer 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 |
| P2135 | Throttle / Pedal Position Sensor / Switch "A" / "B" Voltage Correlation | Short between VTA1 and VTA2 circuits - Throttle position sensor (built into throttle body) - ECM | Comes on | DTC stored | Refer 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 |
| P2138 | Throttle / Pedal Position Sensor / Switch "D" / "E" Voltage Correlation | Short between VPA and VPA2 circuits - Accelerator pedal position sensor - ECM | Comes on | DTC stored | Refer 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 |
| P2195 | Oxygen (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 - ECM | Comes on | DTC stored | Refer 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) |
| P2196 | Oxygen (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 - ECM | Comes on | DTC stored | Refer 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) |
| P2237 | Oxygen (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) - ECM | Comes on | DTC stored | Refer 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) |
| P2238 | Oxygen (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) - ECM | Comes on | DTC stored | Refer 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) |
| P2239 | Oxygen (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) - ECM | Comes on | DTC stored | Refer 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) |
| P2252 | Oxygen (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) - ECM | Comes on | DTC stored | Refer 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) |
| P2253 | Oxygen (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) - ECM | Comes on | DTC stored | Refer 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) |
| P2401 | Evaporative Emission Leak Detection Pump Stuck OFF | Canister 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) - ECM | Comes on | DTC stored | Refer 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 |
| P2402 | Evaporative Emission Leak Detection Pump Stuck ON | Canister 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) - ECM | Comes on | DTC stored | Refer 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 |
| P2419 | Evaporative Emission System Switching Valve Control Circuit Low | Canister 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) - ECM | Comes on | DTC stored | Refer 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 |
| P2420 | Evaporative Emission System Switching Valve Control Circuit High | Canister pump module (Reference orifice, leak detection pump, vent valve) - Connector/wire harness (Canister pump module - ECM) - ECM | Comes on | DTC stored | Refer to DTC P2420: Evaporative Emission System Switching Valve Control Circuit High |
| P2610 | ECM / PCM Internal Engine Off Timer Performance | ECM | Comes on | DTC stored | Refer to DTC P2610: ECM / PCM Internal Engine Off Timer Performance |
SFI SYSTEM