Water Sprinkling Method
If a malfunction occurs only during high humidity or rainy/snowy weather, perform the following steps
| CAUTION | Indirectly change the temperature and humidity by spraying water onto the front of the radiator. If a vehicle is subject to water leakage, the leakage may damage the control module. When testing a vehicle with a water leakage problem, special caution must be used. |
Scheme 114
- Connect the WDS or equivalent to the DLC-2 if you are inspecting sensors or switches.
- Turn the ignition switch to the ON position (Engine off). NOTE: If the engine starts and runs, perform the following steps is idling.
- Access the PIDs for the sensor or the switch if you are inspecting sensors or switches.
- If you are inspecting the switch, turn it on manually.
- Spray water onto the vehicle or run it through a car wash. If the PID value is unstable or a malfunction occurs, repair or replace parts if necessary.
NO. 1 MELTING OF MAIN OR OTHER FUSES [L3 WITH TC]
FUSES CHECK 1 MELTING OF MAIN OR OTHER FUSES [TROUBLESHOOTING HINTS] Inspect condition of fuse
Scheme 115
Scheme 115: NO. 1 MELTING OF MAIN OR OTHER FUSES [L3 WITH TC]
| Damaged fuse | Related wiring harness |
|---|
| MAIN | MAIN fuse BTN fuse IG KEY2 fuse FAN1 fuse FAN 2 fuse |
| BTN | BTN fuse ROOM fuse |
| ROOM | ROOM fuse DLC-2 |
| IG KEY2 | IG KEY fuse Ignition switch |
| FAN 1 | FAN 1 fuse Cooling fan relay |
| FAN 2 | FAN 2 fuse Cooling fan relay |
| ENG BB | ENG BB fuse Cooling fan relay Wastegate control solenoid valve |
| INJ DRIVE | INJ DRIVE fuse Injector relay |
| INJ | INJ fuse ETC relay PCM CKP sensor CMP sensor |
| ENG BAR | ENG BAR fuse Front HO2S EGR valve Purge solenoid valve MAF/IAT sensor Oil control valve Variable swirl shutter valve switch Variable swirl solenoid valve EVAP system leak detection pump |
| FUEL PUMP | FUEL PUMP fuse Main relay Fuel pump resistor Fuel pump relay Fuel pump control relay |
| IG KEY1 | IG KEY1 fuse Ignition switch ENGINE fuse |
| ENGINE | ENGINE fuse PCM Injection relay Ignition coil Fuel pump relay |
| ENG +B | ENG +B fuse PCM |
| ETC fuse | ETC fuse ETC control relay |
NO. 2 MIL ILLUMINATES [L3 WITH TC]
| 2 | MIL ILLUMINATES |
|---|
| DESCRIPTION | MIL illuminates incorrectly. |
| POSSIBLE CAUSE | PCM illuminates for emission-related concern (DTC is stored in PCM) Instrument cluster malfunction NOTE: If the MIL blinks at a steady rate, a misfire condition could possibly exist. |
| NOTE |
|---|
| If the MIL blinks at a steady rate, a misfire condition could possibly exist. |
POSSIBLE CAUSES DESCRIPTIONS
NO. 3 WILL NOT CRANK [L3 WITH TC]
| 3 | WILL NOT CRANK |
|---|
| DESCRIPTION | Starter does not work. |
| POSSIBLE CAUSE | Open starter circuit between the ignition switch and the starter Low or dead battery Charging system malfunction Starter interlock switch malfunction Starter malfunction Seized/hydro-locked engine, flywheel Immobilizer system and/or related circuit malfunction Immobilizer system operates properly (Key is not, registered). Advanced keyless entry system malfunction |
POSSIBLE CAUSES DESCRIPTIONS
START/LONG CRANK/ERRATIC START/ERRATIC CRANK [L3 WITH TC]
| 4 | HARD TO START/LONG CRANK/ERRATIC START/ERRATIC CRANK |
|---|
| DESCRIPTION | Starter cranks the engine at normal speed but the engine requires excessive cranking time before starting. Battery is operating normally |
| POSSIBLE CAUSE | Vacuum leakage Poor fuel quality Starting system malfunction Erratic signal to ignition coils Spark plug malfunction Air leakage from intake-air system Improper air/fuel mixture ratio control Incorrect fuel injection timing Erratic signal from CKP sensor Erratic signal from CMP sensor Front and/rear HO2S sensor or related circuit malfunction ECT sensor or related circuit malfunction MAF sensor or related circuit malfunction Intake-air system restriction Improper operation of electronic throttle control system PCV valve malfunction Inadequate fuel pressure (high or low pressure side) Relief valve malfunction (built-in delivery pipe) Spill valve control solenoid valve malfunction (built-in high pressure fuel pump) Fuel filter clogging Fuel line restriction Fuel leakage Fuel pump (low-side) resister or related circuit malfunction Fuel injector malfunction Fuel pressure sensor malfunction High pressure fuel pump malfunction Exhaust system or three-way catalytic converter restriction EGR valve malfunction Purge solenoid valve malfunction Low engine compression Improper valve timing Injector driver module or related circuit malfunction WARNING: The following troubleshooting flow chart contains the fuel system diagnosis and repair procedures. Read the following warnings before performing the fuel system services: Fuel vapor is hazardous. It can easily ignite, causing serious injury and damage. Always keep sparks and flames away from fuel. Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injury or death and damage. Fuel can also irritate skin and eyes. To prevent this, always complete "BEFORE REPAIR PROCEDURE" and "AFTER REPAIR PROCEDURE" described in this manual. (See BEFORE REPAIR PROCEDURE [L3 WITH TC] ). (See AFTER REPAIR PROCEDURE [L3 WITH TC] ). CAUTION: Disconnecting/connecting the quick release connector without cleaning it may possibly cause damage to the fuel pipe and quick release connector. Always clean the quick release connector joint area before disconnecting/connecting, and make sure that it is free of foreign material. |
| WARNING |
|---|
| The following troubleshooting flow chart contains the fuel system diagnosis and repair procedures. Read the following warnings before performing the fuel system services: Fuel vapor is hazardous. It can easily ignite, causing serious injury and damage. Always keep sparks and flames away from fuel. Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injury or death and damage. Fuel can also irritate skin and eyes. To prevent this, always complete "BEFORE REPAIR PROCEDURE" and "AFTER REPAIR PROCEDURE" described in this manual. (See BEFORE REPAIR PROCEDURE [L3 WITH TC] ). (See AFTER REPAIR PROCEDURE [L3 WITH TC] ). |
| CAUTION |
|---|
| Disconnecting/connecting the quick release connector without cleaning it may possibly cause damage to the fuel pipe and quick release connector. Always clean the quick release connector joint area before disconnecting/connecting, and make sure that it is free of foreign material. |
POSSIBLE CAUSES DESCRIPTIONS
NO. 5 ENGINE STALLS-AFTER START/AT IDLE [L3 WITH TC]
| 5 | ENGINE STALLS - AFTER START/AT IDLE |
|---|
| DESCRIPTION | Engine stops unexpectedly. |
| POSSIBLE CAUSE | A/C system improper operation Air leakage from intake-air system Purge solenoid valve malfunction Improper operation of electronic throttle control system EGR valve malfunction Vacuum leakage Engine overheating Low engine compression Ignition system malfunction Poor fuel quality PCV valve malfunction Intake-air system restriction Exhaust system and/or three-way catalytic converter (TWC) restriction or clogging Electrical connector disconnection Open or short circuit in the fuel pump (low-side) body or related wiring harness Fuel pump resister or related circuit malfunction No battery power supply to PCM or poor ground Inadequate fuel pressure (high or low pressure side) Fuel pressure sensor or related circuit malfunction Spill valve control solenoid valve malfunction (built-in high pressure fuel pump) Relief valve malfunction (built-in delivery pipe) Fuel pump (low-side) body mechanical malfunction Fuel leakage Fuel line restriction Fuel filter clogging Incorrect fuel injection timing High pressure fuel pump malfunction Fuel injector malfunction Ignition coil malfunction Improper air/fuel mixture ratio control No signal from CKP sensor due to sensor, related wiring harness or wrong installation Erratic signal from CMP sensor Front and/or rear HO2S sensor or related circuit malfunction ECT sensor or related circuit malfunction Accelerator positions sensor or related circuit malfunction MAF sensor or related circuit malfunction Improper valve timing Improper operation variable valve timing control system Immobilizer system and/or circuit malfunction Injector driver module or related circuit malfunction WARNING: The following troubleshooting flow chart contains the fuel system diagnosis and repair procedures. Read the following warnings before performing the fuel system services: Fuel vapor is hazardous. It can easily ignite, causing serious injury and damage. Always keep sparks and flames away from fuel. Fuel line spills and leakage are dangerous. Fuel can Ignite and cause serious injury or death and damage. Fuel can also irritate skin and eyes. To prevent this, always complete "BEFORE REPAIR PROCEDURE" and "AFTER REPAIR PROCEDURE" described in this manual. (See BEFORE REPAIR PROCEDURE [L3 WITH TC] ). (See AFTER REPAIR PROCEDURE [L3 WITH TC] ). CAUTION: Disconnecting/connecting the quick release connector without cleaning it may possibly cause damage to the fuel pipe and quick release connector. Always clean the quick release connector joint area before disconnecting/connecting, and make sure that it is free of foreign material. |
| WARNING |
|---|
| The following troubleshooting flow chart contains the fuel system diagnosis and repair procedures. Read the following warnings before performing the fuel system services: Fuel vapor is hazardous. It can easily ignite, causing serious injury and damage. Always keep sparks and flames away from fuel. Fuel line spills and leakage are dangerous. Fuel can Ignite and cause serious injury or death and damage. Fuel can also irritate skin and eyes. To prevent this, always complete "BEFORE REPAIR PROCEDURE" and "AFTER REPAIR PROCEDURE" described in this manual. (See BEFORE REPAIR PROCEDURE [L3 WITH TC] ). (See AFTER REPAIR PROCEDURE [L3 WITH TC] ). |
| CAUTION |
|---|
| Disconnecting/connecting the quick release connector without cleaning it may possibly cause damage to the fuel pipe and quick release connector. Always clean the quick release connector joint area before disconnecting/connecting, and make sure that it is free of foreign material. |
POSSIBLE CAUSES DESCRIPTIONS
NO. 6 CRANKS NORMALLY BUT WILL NOT START [L3 WITH TC]
| 6 | CRANKS NORMALLY BUT NOT START |
|---|
| DESCRIPTION | Starter cranks engine at normal speed but engine will not run. Refer to symptom troubleshooting " NO. 5 ENGINE STALLS " if this symptom appears after the engine stalls. Fuel is in tank. Battery is in normal condition. |
| POSSIBLE CAUSE | Air leakage from intake-air system Open PCM ground or vehicle body ground Improper operation of electronic throttle control system EGR valve malfunction Low engine compression Engine overheating Vacuum leakage Ignition system malfunction Poor fuel quality PCV valve malfunction Intake-air system restriction Improper air/fuel mixture ratio control No signal from CKP sensor due to sensor, related wire or incorrect installation No signal from CMP sensor due to sensor, related wire or incorrect installation Front and/or rear HO2S sensor or related circuit malfunction ECT sensor or related circuit malfunction Accelerator position sensor or related circuit malfunction MAF sensor or related circuit malfunction High pressure fuel pump malfunction Exhaust system or three-way catalytic converter (TWC) malfunction Disconnected electrical connector Open or short in fuel pump (low-side) body and related harness Inadequate fuel pressure (high or low pressure side) Fuel pressure sensor or related circuit malfunction Relief valve malfunction (built-in high pressure fuel pump) Fuel line clogging or restriction Incorrect fuel injection timing Fuel pump resistor or control relay malfunction Fuel pump (low-side) mechanical malfunction Fuel leakage Fuel injector malfunction Purge solenoid valve malfunction Spark plug malfunction Ignition coil malfunction Improper valve timing Improper variable valve timing control system operation Immobilizer system or related circuit malfunction Injector driver module or related circuit malfunction WARNING: The following troubleshooting flow chart contains the fuel system diagnosis and repair procedures. Read the following warnings before performing the fuel system services: Fuel vapor is hazardous. It can easily ignite, causing serious injury and damage. Always keep sparks and flames away from fuel. Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injury or death and damage. Fuel can also irritate skin and eyes. To prevent this, always complete "BEFORE REPAIR PROCEDURE" and "AFTER REPAIR PROCEDURE" described in this manual. (See BEFORE REPAIR PROCEDURE [L3 WITH TC] ). (See AFTER REPAIR PROCEDURE [L3 WITH TC] ). CAUTION: Disconnecting/connecting the quick release connector without cleaning it may possibly cause damage to the fuel pipe and quick release connector. Always clean the quick release connector joint area before disconnecting/connecting, and make sure that it is free of foreign material. |
| WARNING |
|---|
| The following troubleshooting flow chart contains the fuel system diagnosis and repair procedures. Read the following warnings before performing the fuel system services: Fuel vapor is hazardous. It can easily ignite, causing serious injury and damage. Always keep sparks and flames away from fuel. Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injury or death and damage. Fuel can also irritate skin and eyes. To prevent this, always complete "BEFORE REPAIR PROCEDURE" and "AFTER REPAIR PROCEDURE" described in this manual. (See BEFORE REPAIR PROCEDURE [L3 WITH TC] ). (See AFTER REPAIR PROCEDURE [L3 WITH TC] ). |
| CAUTION |
|---|
| Disconnecting/connecting the quick release connector without cleaning it may possibly cause damage to the fuel pipe and quick release connector. Always clean the quick release connector joint area before disconnecting/connecting, and make sure that it is free of foreign material. |
POSSIBLE CAUSES DESCRIPTIONS
NO. 7 SLOW RETURN TO IDLE [L3 WITH TC]
| 7 | SLOW RETURN TO IDLE |
|---|
| DESCRIPTION | Engine takes more time than normal to return to idle speed. Engine speed continues at fast idle after warm-up |
| POSSIBLE CAUSE | ECT sensor or related circuit malfunction Thermostat is stuck open Fuel injection timing is incorrect Erratic signal from CKP sensor Erratic signal from CMP sensor Accelerator position sensor or related circuit malfunction Air suction in intake-air system MAF sensor or related circuit malfunction Fuel pressure sensor or related circuit malfunction Excessive fuel pressure Relief valve malfunction (built-in delivery pipe) Fuel injector malfunction Cooling fan control system malfunction Improper load signal input Injector driver module or related circuit malfunction WARNING: The following troubleshooting flow chart contains the fuel system diagnosis and repair procedures. Read the following warnings before performing the fuel system services: Fuel vapor is hazardous. It can easily ignite, causing serious injury and damage. Always keep sparks and flames away from fuel. Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injury or death and damage. Fuel can also irritate skin and eyes. To prevent this, always complete "BEFORE REPAIR PROCEDURE" and "AFTER REPAIR PROCEDURE" described in this manual. (See AFTER REPAIR PROCEDURE [L3 WITH TC] ). (See BEFORE REPAIR PROCEDURE [L3 WITH TC] ). CAUTION: Disconnecting/connecting the quick release connector without cleaning it may possibly cause damage to the fuel pipe and quick release connector. Always clean the quick release connector joint area before disconnecting/connecting, and make sure that it is free of foreign material. |
| WARNING |
|---|
| The following troubleshooting flow chart contains the fuel system diagnosis and repair procedures. Read the following warnings before performing the fuel system services: Fuel vapor is hazardous. It can easily ignite, causing serious injury and damage. Always keep sparks and flames away from fuel. Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injury or death and damage. Fuel can also irritate skin and eyes. To prevent this, always complete "BEFORE REPAIR PROCEDURE" and "AFTER REPAIR PROCEDURE" described in this manual. (See AFTER REPAIR PROCEDURE [L3 WITH TC] ). (See BEFORE REPAIR PROCEDURE [L3 WITH TC] ). |
| CAUTION |
|---|
| Disconnecting/connecting the quick release connector without cleaning it may possibly cause damage to the fuel pipe and quick release connector. Always clean the quick release connector joint area before disconnecting/connecting, and make sure that it is free of foreign material. |
POSSIBLE CAUSES DESCRIPTIONS
NO. 8 ENGINE RUNS ROUGH/ROLLING IDLE [L3 WITH TC]
| 8 | ENGINE RUNS ROUGH/ROLLING IDLE |
|---|
| DESCRIPTION | Engine speed fluctuates between the specified idle speed and lower speed and, engine shakes excessively. Idle speed is too slow and the engine shakes excessively. |
| POSSIBLE CAUSE | Air leakage from intake-air system A/C system improper operation Erratic signal to ignition coil Spark plug malfunction Purge solenoid valve malfunction Improper operation of electronic throttle control system EGR valve malfunction Low engine compression or excessive unbalance for each cylinder Improper valve timing Improper variable valve timing control system Poor fuel quality PCV valve malfunction Intake-air system restriction Exhaust system or three-way catalytic converter (TWC) restriction or clogging Disconnected electrical connectors Inadequate fuel pressure (high or low pressure side) Fuel pressure sensor or related circuit malfunction Spill valve control solenoid valve malfunction (built-in high pressure fuel pump) Relief valve malfunction (built-in delivery pipe) Fuel pump (low-side) body mechanical malfunction Fuel filter restriction or clogging Fuel leakage Incorrect fuel injection timing Unbalanced fuel injection amount for each cylinder High pressure fuel pump malfunction Fuel injector malfunction Erratic signal from CKP sensor Erratic or no signal from CMP sensor ECT sensor or related circuit malfunction Manifold absolute pressure (MAP) sensor or related circuit malfunction Accelerator position sensor or related circuit malfunction MAF sensor malfunction Incorrect or no load signal input Engine overheating Vacuum leakage Injector driver module or related circuit malfunction WARNING: The following troubleshooting flow chart contains the fuel system diagnosis and repair procedures. Read the following warnings before performing the fuel system services: Fuel vapor is hazardous. It can easily ignite, causing serious injury and damage. Always keep sparks and flames away from fuel. Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injury or death and damage. Fuel can also irritate skin and eyes. To prevent this, always complete "BEFORE REPAIR PROCEDURE" and "AFTER REPAIR PROCEDURE" described in this manual. (See AFTER REPAIR PROCEDURE [L3 WITH TC] ). (See BEFORE REPAIR PROCEDURE [L3 WITH TC] ). CAUTION: Disconnecting/connecting the quick release connector without cleaning it may possibly cause damage to the fuel pipe and quick release connector. Always clean the quick release connector joint area before disconnecting/connecting, and make sure that it is free of foreign material. |
| WARNING |
|---|
| The following troubleshooting flow chart contains the fuel system diagnosis and repair procedures. Read the following warnings before performing the fuel system services: Fuel vapor is hazardous. It can easily ignite, causing serious injury and damage. Always keep sparks and flames away from fuel. Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injury or death and damage. Fuel can also irritate skin and eyes. To prevent this, always complete "BEFORE REPAIR PROCEDURE" and "AFTER REPAIR PROCEDURE" described in this manual. (See AFTER REPAIR PROCEDURE [L3 WITH TC] ). (See BEFORE REPAIR PROCEDURE [L3 WITH TC] ). |
| CAUTION |
|---|
| Disconnecting/connecting the quick release connector without cleaning it may possibly cause damage to the fuel pipe and quick release connector. Always clean the quick release connector joint area before disconnecting/connecting, and make sure that it is free of foreign material. |
POSSIBLE CAUSES DESCRIPTIONS
NO. 9 FAST IDLE/RUNS ON [L3 WITH TC]
| 9 | FAST IDLE/RUNS ON |
|---|
| DESCRIPTION | Engine speed continues at fast idle after warm-up. Engine runs after the ignition switch is turned off. |
| POSSIBLE CAUSE | ECT sensor or related circuit malfunction Suction control valve (built-in high pressure fuel pump) Fuel injector malfunction Air leakage from intake-air system Throttle body malfunction Accelerator pedal position sensor or related circuit malfunction Cruise control system operation improperly Improper load signal input Improper operation of electric throttle control system Injector driver module or related circuit malfunction WARNING: The following troubleshooting flow chart contains the fuel system diagnosis and repair procedures. Read the following warnings before performing the fuel system services: Fuel vapor is hazardous. It can easily ignite, causing serious injury and damage. Always keep sparks and flames away from fuel. Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injury or death and damage. Fuel can also irritate skin and eyes. To prevent this, always complete "BEFORE REPAIR PROCEDURE" and "AFTER REPAIR PROCEDURE" described in this manual. (See AFTER REPAIR PROCEDURE [L3 WITH TC] ). (See BEFORE REPAIR PROCEDURE [L3 WITH TC] ). CAUTION: Disconnecting/connecting the quick release connector without cleaning it may possibly cause damage to the fuel pipe and quick release connector. Always clean the quick release connector joint area before disconnecting/connecting, and make sure that it is free of foreign material. |
| WARNING |
|---|
| The following troubleshooting flow chart contains the fuel system diagnosis and repair procedures. Read the following warnings before performing the fuel system services: Fuel vapor is hazardous. It can easily ignite, causing serious injury and damage. Always keep sparks and flames away from fuel. Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injury or death and damage. Fuel can also irritate skin and eyes. To prevent this, always complete "BEFORE REPAIR PROCEDURE" and "AFTER REPAIR PROCEDURE" described in this manual. (See AFTER REPAIR PROCEDURE [L3 WITH TC] ). (See BEFORE REPAIR PROCEDURE [L3 WITH TC] ). |
| CAUTION |
|---|
| Disconnecting/connecting the quick release connector without cleaning it may possibly cause damage to the fuel pipe and quick release connector. Always clean the quick release connector joint area before disconnecting/connecting, and make sure that it is free of foreign material. |
POSSIBLE CAUSES DESCRIPTIONS
NO. 10 LOW IDLE/STALLS DURING DECELERATION [L3 WITH TC]
| 10 | LOW IDLE/STALLS DURING DECELERATION |
|---|
| DESCRIPTION | Engine stops unexpectedly at beginning of deceleration or recovery from deceleration. |
| POSSIBLE CAUSE | Poor fuel quality Vacuum leakage Improper operation of electronic throttle control system Air leakage from intake-air system Intake-air system restriction EVAP control system malfunction Improper air/fuel mixture ratio control Erratic signal from CKP sensor Erratic signal from CMP sensor Accelerator position sensor or related circuit malfunction TP sensor or related circuit malfunction MAF sensor or related circuit malfunction Front and/or rear HO2S sensor or related circuit malfunction Brake switch or related circuit malfunction Neutral or clutch switch malfunction or related circuit malfunction Improper A/C magnetic clutch operation Inadequate fuel pressure (high or low pressure side) Suction control valve malfunction (built-in high pressure fuel pump) Relief valve malfunction (built-in delivery pipe) Fuel leakage Fuel line restriction Fuel filter clogging Incorrect fuel injection timing High pressure fuel pump malfunction Fuel injector malfunction Low engine compression Improper valve timing EGR system malfunction Vacuum leakage ECT sensor or related circuit malfunction Fuel pressure sensor or related circuit malfunction Injector driver module or related circuit malfunction WARNING: The following troubleshooting flow chart contains the fuel system diagnosis and repair procedures. Read the following warnings before performing the fuel system services: Fuel vapor is hazardous. It can easily ignite, causing serious injury and damage. Always keep sparks and flames away from fuel. Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injury or death and damage. Fuel can also irritate skin and eyes. To prevent this, always complete "BEFORE REPAIR PROCEDURE" and "AFTER REPAIR PROCEDURE" described in this manual. (See AFTER REPAIR PROCEDURE [L3 WITH TC] ). (See BEFORE REPAIR PROCEDURE [L3 WITH TC] ). CAUTION: Disconnecting/connecting the quick release connector without cleaning it may possibly cause damage to the fuel pipe and quick release connector. Always clean the quick release connector joint area before disconnecting/connecting, and make sure that it is free of foreign material. |
| WARNING |
|---|
| The following troubleshooting flow chart contains the fuel system diagnosis and repair procedures. Read the following warnings before performing the fuel system services: Fuel vapor is hazardous. It can easily ignite, causing serious injury and damage. Always keep sparks and flames away from fuel. Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injury or death and damage. Fuel can also irritate skin and eyes. To prevent this, always complete "BEFORE REPAIR PROCEDURE" and "AFTER REPAIR PROCEDURE" described in this manual. (See AFTER REPAIR PROCEDURE [L3 WITH TC] ). (See BEFORE REPAIR PROCEDURE [L3 WITH TC] ). |
| CAUTION |
|---|
| Disconnecting/connecting the quick release connector without cleaning it may possibly cause damage to the fuel pipe and quick release connector. Always clean the quick release connector joint area before disconnecting/connecting, and make sure that it is free of foreign material. |
POSSIBLE CAUSES DESCRIPTIONS
NO. 11 ENGINE STALLS/QUITS, ENGINE RUNS ROUGH, MISSES, BUCK/JERK, HESITATION/STUMBLE, SURGES [L3 WITH TC]
| 11 | ENGINE STALLS/QUITS - ACCELERATION/CRUISE ENGINE RUNS ROUGH - ACCELERATION/CRUISE BUCK/JERK - ACCELERATION/CRUISE/DECELERATION HESITATION/STUMBLE - ACCELERATION SURGES - ACCELERATION/CRUISE |
|---|
| DESCRIPTION | Engine stops unexpectedly at beginning of acceleration or during cruise. Engine stops unexpectedly while cruising. Engine speed fluctuates during acceleration or cruising. Engine misses during acceleration or cruising. Vehicle bucks/jerks during acceleration, during or deceleration. Momentary pause at beginning of acceleration or during acceleration Momentary minor irregularity in engine output |
| POSSIBLE CAUSE | A/C system improper operation Air leakage from intake-air system Intake-air system restriction Purge solenoid valve malfunction Improper operation of electronic throttle control system EGR system malfunction Low engine compression Turbocharger malfunction Improper operation of wastegate control system Vacuum leakage Poor fuel quality Main relay intermittent malfunction Throttle body malfunction Engine overheating Spark plug malfunction Variable swirl system malfunction Air cleaner restriction PCV valve malfunction Improper valve timing due to jumping out timing chain Exhaust system and/or three-way catalytic converter restriction Intermittent open or short circuit in fuel pump circuit Incorrect fuel injection timing Inadequate fuel pressure (high or low pressure side) Fuel pressure sensor or related circuit malfunction Suction control valve malfunction (built-in high pressure fuel pump) Relief valve malfunction (built-in delivery pipe) High pressure fuel pump malfunction Fuel injector malfunction Improper fuel pump speed control operation Fuel pump mechanical malfunction Fuel line restriction or clogging Improper air/fuel mixture ratio control operation Erratic or no signal from CMP sensor Erratic signal from CKP sensor Front and/or rear HO2S sensor or related circuit malfunction Accelerator position sensor or related circuit malfunction MAF sensor or related circuit malfunction Neutral switch or related circuit malfunction ECT sensor or related circuit malfunction Manifold absolute pressure (MAP) sensor or related circuit malfunction IAT sensor No.1 or related circuit malfunction IAT sensor No.2 or related circuit malfunction Intermittent open or short circuit MAF sensor, accelerator position sensor, TP sensor and VSS Clutch slippage Injector driver module or related circuit malfunction WARNING: The following troubleshooting flow chart contains the fuel system diagnosis and repair procedures. Read the following warnings before performing the fuel system services: Fuel vapor is hazardous. It can easily ignite, causing serious injury and damage. Always keep sparks and flames away from fuel. Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injury or death and damage. Fuel can also irritate skin and eyes. To prevent this, always complete "BEFORE REPAIR PROCEDURE" and "AFTER REPAIR PROCEDURE" described in this manual. (See AFTER REPAIR PROCEDURE [L3 WITH TC] ). (See BEFORE REPAIR PROCEDURE [L3 WITH TC] ). CAUTION: Disconnecting/connecting the quick release connector without cleaning it may possibly cause damage to the fuel pipe and quick release connector. Always clean the quick release connector joint area before disconnecting/connecting, and make sure that it is free of foreign material. |
| WARNING |
|---|
| The following troubleshooting flow chart contains the fuel system diagnosis and repair procedures. Read the following warnings before performing the fuel system services: Fuel vapor is hazardous. It can easily ignite, causing serious injury and damage. Always keep sparks and flames away from fuel. Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injury or death and damage. Fuel can also irritate skin and eyes. To prevent this, always complete "BEFORE REPAIR PROCEDURE" and "AFTER REPAIR PROCEDURE" described in this manual. (See AFTER REPAIR PROCEDURE [L3 WITH TC] ). (See BEFORE REPAIR PROCEDURE [L3 WITH TC] ). |
| CAUTION |
|---|
| Disconnecting/connecting the quick release connector without cleaning it may possibly cause damage to the fuel pipe and quick release connector. Always clean the quick release connector joint area before disconnecting/connecting, and make sure that it is free of foreign material. |
POSSIBLE CAUSES DESCRIPTIONS
NO. 12 LACK/LOSS OF POWER-ACCELERATION/CRUISE [L3 WITH TC]
| 12 | LACK/LOSS OF POWER - ACCELERATION/CRUISE |
|---|
| DESCRIPTION | Performance is poor under load (e.g., powers down when climbing hills). |
| POSSIBLE CAUSE | Improper A/C system operation Improper operation of A/C cut-off control Air leakage or restriction from intake-air system Loose turbocharger compressor-to-intake manifold duct connecting Turbocharger rotating assembly binding or dragging Wastegate valve malfunction (stuck open) Turbocharger malfunction Charge air cooler malfunction Variable swirl system malfunction Improper operation of electronic throttle control system Purge solenoid valve malfunction EGR system malfunction Brake dragging Low engine compression Poor fuel quality Vacuum leakage Incorrect signal to ignition coil Spark plug malfunction Engine overheating Throttle body malfunction Air cleaner restriction or dirty PCV valve malfunction Improper valve timing due to jumping out of timing chain Improper operation of variable valve timing control system Restriction in exhaust system or three-way catalytic converter (TWC) Leakage at exhaust manifold or turbocharger mounting flange Intermittent open or short fuel pump related circuit Inadequate fuel pressure (high-or low pressure side) Fuel pressure sensor or related circuit malfunction Suction control valve or related circuit malfunction (built-in high pressure fuel pump) Relief valve malfunction (built-in delivery pipe) High pressure fuel pump malfunction Improper fuel pump speed control operation Fuel pump mechanical malfunction Fuel line restriction or clogging Fuel injector malfunction Incorrect fuel injection timing Erratic signal from CKP sensor Erratic or no signal from CMP sensor ECT sensor or related circuit malfunction Manifold absolute pressure (MAP) sensor or related circuit malfunction Accelerator position sensor or related circuit malfunction MAF/IAT sensor or related circuit malfunction IAT sensor No.2 or related circuit malfunction Intermittent open or short circuit MAF sensor, accelerator position sensor, TP sensor and VSS Clutch slippage Injector driver module or related circuit malfunction WARNING: The following troubleshooting flow chart contains the fuel system diagnosis and repair procedures. Read the following warnings before performing the fuel system services: Fuel vapor is hazardous. It can easily ignite, causing serious injury and damage. Always keep sparks and flames away from fuel. Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injury or death and damage. Fuel can also irritate skin and eyes. To prevent this, always complete "BEFORE REPAIR PROCEDURE" and "AFTER REPAIR PROCEDURE" described in this manual. (See AFTER REPAIR PROCEDURE [L3 WITH TC] ). (See BEFORE REPAIR PROCEDURE [L3 WITH TC] ). CAUTION: Disconnecting/connecting the quick release connector without cleaning it may possibly cause damage to the fuel pipe and quick release connector. Always clean the quick release connector joint area before disconnecting/connecting, and make sure that it is free of foreign material. |
| WARNING |
|---|
| The following troubleshooting flow chart contains the fuel system diagnosis and repair procedures. Read the following warnings before performing the fuel system services: Fuel vapor is hazardous. It can easily ignite, causing serious injury and damage. Always keep sparks and flames away from fuel. Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injury or death and damage. Fuel can also irritate skin and eyes. To prevent this, always complete "BEFORE REPAIR PROCEDURE" and "AFTER REPAIR PROCEDURE" described in this manual. (See AFTER REPAIR PROCEDURE [L3 WITH TC] ). (See BEFORE REPAIR PROCEDURE [L3 WITH TC] ). |
| CAUTION |
|---|
| Disconnecting/connecting the quick release connector without cleaning it may possibly cause damage to the fuel pipe and quick release connector. Always clean the quick release connector joint area before disconnecting/connecting, and make sure that it is free of foreign material. |
POSSIBLE CAUSES DESCRIPTIONS
NO. 13 KNOCKING/PINGING [L3 WITH TC]
| 13 | KNOCKING/PINGING |
|---|
| DESCRIPTION | Sound is produced when air/fuel mixture is ignited by something other than a spark plug (e.g., hot spot in the combustion chamber). |
| POSSIBLE CAUSE | Poor fuel quality Engine overheating due to cooling system malfunction Variable swirl valve stuck closed Improper operation of electronic throttle system Air leakage or restriction from intake-air system ECT sensor or related circuit malfunction MAF sensor or related circuit malfunction IAT sensor No.1 or related circuit malfunction IAT sensor No.2 or related circuit malfunction Incorrect fuel injection timing or amount Fuel injector malfunction Knock sensor or related circuit malfunction Ignition system malfunction Erratic signal from CMP sensor Inadequate engine compression Inadequate fuel pressure (high-pressure side) Manifold absolute pressure (MAP) sensor or related malfunction Wastegate valve malfunction (stuck closed) Charge air cooler malfunction Fuel pressure sensor or related circuit malfunction Accelerator position sensor or related circuit malfunction Suction control valve malfunction (built-in high pressure fuel pump) Exhaust system and/or three-way catalytic converter (TWC) restriction EGR system malfunction WARNING: The following troubleshooting flow chart contains the fuel system diagnosis and repair procedures. Read the following warnings before performing the fuel system services: Fuel vapor is hazardous. It can easily ignite, causing serious injury and damage. Always keep sparks and flames away from fuel. Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injury or death and damage. Fuel can also irritate skin and eyes. To prevent this, always complete "BEFORE REPAIR PROCEDURE" and "AFTER REPAIR PROCEDURE" described in this manual. (See BEFORE REPAIR PROCEDURE [L3 WITH TC] ). (See AFTER REPAIR PROCEDURE [L3 WITH TC] ). CAUTION: Disconnecting/connecting the quick release connector without cleaning it may possibly cause damage to the fuel pipe and quick release connector. Always clean the quick release connector joint area before disconnecting/connecting, and make sure that it is free of foreign material. |
| WARNING |
|---|
| The following troubleshooting flow chart contains the fuel system diagnosis and repair procedures. Read the following warnings before performing the fuel system services: Fuel vapor is hazardous. It can easily ignite, causing serious injury and damage. Always keep sparks and flames away from fuel. Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injury or death and damage. Fuel can also irritate skin and eyes. To prevent this, always complete "BEFORE REPAIR PROCEDURE" and "AFTER REPAIR PROCEDURE" described in this manual. (See BEFORE REPAIR PROCEDURE [L3 WITH TC] ). (See AFTER REPAIR PROCEDURE [L3 WITH TC] ). |
| CAUTION |
|---|
| Disconnecting/connecting the quick release connector without cleaning it may possibly cause damage to the fuel pipe and quick release connector. Always clean the quick release connector joint area before disconnecting/connecting, and make sure that it is free of foreign material. |
POSSIBLE CAUSES DESCRIPTIONS
NO. 14 POOR FUEL ECONOMY [L3 WITH TC]
| 14 | POOR FUEL ECONOMY |
|---|
| DESCRIPTION | Fuel economy is unsatisfactory. |
| POSSIBLE CAUSE | Contaminated air cleaner element Engine cooling system malfunction Weak spark Spark plug malfunction Poor fuel quality Erratic signal from CKP sensor Erratic or no signal from CMP sensor Fuel pressure sensor or related circuit malfunction ECT sensor or related circuit malfunction Manifold absolute pressure (MAP) sensor or related circuit malfunction Accelerator position sensor or related circuit malfunction MAF sensor or related circuit malfunction Contaminated MAF sensor IAT sensor No.1 or related circuit malfunction IAT sensor No.2 or related circuit malfunction VSS or related circuit malfunction Variable swirl system malfunction Improper coolant level Inadequate fuel pressure (high-pressure side) Injection timing is incorrect Fuel injector or related circuit malfunction High pressure fuel pump malfunction Fuel leakage Fuel line restriction Fuel filter clogging PCV valve malfunction Brake dragging Clutch slippage A/C system improper operation Improper valve timing due to jumping out of timing chain Improper engine compression Turbocharger malfunction Charge air cooler malfunction Exhaust system and/or three-way catalytic converter clogging EGR system malfunction Vacuum leakage Injector driver module or related circuit malfunction WARNING: The following troubleshooting flow chart contains the fuel system diagnosis and repair procedures. Read the following warnings before performing the fuel system services: Fuel vapor is hazardous. It can easily ignite, causing serious injury and damage. Always keep sparks and flames away from fuel. Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injury or death and damage. Fuel can also irritate skin and eyes. To prevent this, always complete "BEFORE REPAIR PROCEDURE" and "AFTER REPAIR PROCEDURE" described in this manual. (See BEFORE REPAIR PROCEDURE [L3 WITH TC] ). (See AFTER REPAIR PROCEDURE [L3 WITH TC] ). CAUTION: Disconnecting/connecting the quick release connector without cleaning it may possibly cause damage to the fuel pipe and quick release connector. Always clean the quick release connector joint area before disconnecting/connecting, and make sure that it is free of foreign material. |
| WARNING |
|---|
| The following troubleshooting flow chart contains the fuel system diagnosis and repair procedures. Read the following warnings before performing the fuel system services: Fuel vapor is hazardous. It can easily ignite, causing serious injury and damage. Always keep sparks and flames away from fuel. Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injury or death and damage. Fuel can also irritate skin and eyes. To prevent this, always complete "BEFORE REPAIR PROCEDURE" and "AFTER REPAIR PROCEDURE" described in this manual. (See BEFORE REPAIR PROCEDURE [L3 WITH TC] ). (See AFTER REPAIR PROCEDURE [L3 WITH TC] ). |
| CAUTION |
|---|
| Disconnecting/connecting the quick release connector without cleaning it may possibly cause damage to the fuel pipe and quick release connector. Always clean the quick release connector joint area before disconnecting/connecting, and make sure that it is free of foreign material. |
POSSIBLE CAUSES DESCRIPTIONS
NO. 15 EMISSION COMPLIANCE [L3 WITH TC]
| 15 | EMISSION COMPLIANCE |
|---|
| DESCRIPTION | Fails emissions test. |
| POSSIBLE CAUSE | Poor fuel quality Vacuum lines leakage or blockage Cooling system malfunction Engine overheating Spark plug malfunction Air leakage from intake-air system Variable swirl system malfunction Wastegate control system improper operation Turbocharger malfunction Charge air cooler malfunction Inadequate fuel pressure (high-pressure side) PCV valve malfunction or incorrect valve installation EGR system malfunction Exhaust system and/or three-way catalytic converter restriction Fuel tank ventilation system malfunction Charcoal canister damage Air cleaner element clogging or restriction Throttle body malfunction Improper operation of electronic throttle control system Relief valve malfunction (built-in delivery pipe) Suction control valve malfunction (built-in high pressure fuel pump) Improper air/fuel mixture ratio control operation Erratic or no signal from CMP sensor Erratic signal from CKP sensor Front or rear HO2S or related circuit malfunction ECT or related circuit malfunction MAF sensor or related circuit malfunction IAT sensor No.1 or related circuit malfunction IAT sensor No.2 or related circuit malfunction Fuel pressure sensor or related circuit malfunction Accelerator position sensor or related circuit malfunction TP sensor or related circuit malfunction Manifold absolute pressure (MAP) sensor or related circuit malfunction Neutral or clutch switch malfunction VSS or related circuit malfunction Fuel line restriction High pressure fuel pump malfunction Fuel injector or related circuit malfunction Incorrect fuel injection timing Three-way catalytic converter (TWC) malfunction Engine internal parts malfunction Excessive carbon is built-up in combustion chamber Improper engine compression Improper valve timing Injector driver module or related circuit malfunction WARNING: The following troubleshooting flow chart contains the fuel system diagnosis and repair procedures. Read the following warnings before performing the fuel system services: Fuel vapor is hazardous. It can easily ignite, causing serious Injury and damage. Always keep sparks and flames away from fuel. Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injury or death and damage. Fuel can also irritate skin and eyes. To prevent this, always complete "BEFORE REPAIR PROCEDURE" and "AFTER REPAIR PROCEDURE" described in this manual. (See BEFORE REPAIR PROCEDURE [L3 WITH TC] ). (See AFTER REPAIR PROCEDURE [L3 WITH TC] ). CAUTION: Disconnecting/connecting the quick release connector without cleaning it may possibly cause damage to the fuel pipe and quick release connector. Always clean the quick release connector joint area before disconnecting/connecting, and make sure that it is free of foreign material. |
| WARNING |
|---|
| The following troubleshooting flow chart contains the fuel system diagnosis and repair procedures. Read the following warnings before performing the fuel system services: Fuel vapor is hazardous. It can easily ignite, causing serious Injury and damage. Always keep sparks and flames away from fuel. Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injury or death and damage. Fuel can also irritate skin and eyes. To prevent this, always complete "BEFORE REPAIR PROCEDURE" and "AFTER REPAIR PROCEDURE" described in this manual. (See BEFORE REPAIR PROCEDURE [L3 WITH TC] ). (See AFTER REPAIR PROCEDURE [L3 WITH TC] ). |
| CAUTION |
|---|
| Disconnecting/connecting the quick release connector without cleaning it may possibly cause damage to the fuel pipe and quick release connector. Always clean the quick release connector joint area before disconnecting/connecting, and make sure that it is free of foreign material. |
POSSIBLE CAUSES DESCRIPTIONS
NO. 16 HIGH OIL CONSUMPTION/LEAKAGE [L3 WITH TC]
| 16 | HIGH OIL CONSUMPTION/LEAKAGE |
|---|
| DESCRIPTION | Oil consumption is excessive. |
| POSSIBLE CAUSE | PCV valve malfunction Improper dipstick Improper engine oil viscosity Engine internal parts malfunction Seal leakage at the compressor or turbine end of turbocharger (indicated by oil in housing on wheel) Oil leakage |
POSSIBLE CAUSES DESCRIPTIONS
NO. 17 COOLING SYSTEM CONCERNS-OVERHEATING [L3 WITH TC]
| 17 | COOLING SYSTEM CONCERNS - OVERHEATING |
|---|
| DESCRIPTION | Engine runs at higher than normal temperature/overheats. |
| POSSIBLE CAUSE | Improper coolant level Blown fuse Coolant leakage (engine internal, turbocharger, external) Excessive A/C system pressure A/C system operation is improper Improper water/anti-freeze mixture Fans reverse rotation Poor radiator condition Thermostat malfunction Radiator hose damage Cooling fan inoperative Condenser fan inoperative Improper or damaged radiator cap Coolant overflow system malfunction Improper drive belt tension Drive belt damage |
POSSIBLE CAUSES DESCRIPTIONS
NO. 18 COOLING SYSTEM CONCERNS-RUNS COLD [L3 WITH TC]
| 18 | COOLING SYSTEM CONCERNS - RUNS COLD |
|---|
| DESCRIPTION | Engine takes excessive time to reach normal operating temperature. |
| POSSIBLE CAUSE | Thermostat malfunction Condenser fan system malfunction Cooling fan system malfunction |
POSSIBLE CAUSES DESCRIPTIONS
NO. 19 EXCESSIVE BLACK SMOKE [L3 WITH TC]
| 19 | EXHAUST SMOKE |
|---|
| DESCRIPTION | Blue, black, or smoke from the exhaust system |
| POSSIBLE CAUSE | Blue smoke (Burning oil): PCV valve malfunction Engine internal oil leakage Oil leakage at the compressor or turbine end of the turbocharger White smoke (Water in combustion): Cooling system malfunction (coolant loss) Engine internal coolant leakage Coolant leakage at the compressor or the turbine end of the turbocharger Black smoke (Rich fuel mixture): Air cleaner restriction Intake-air system is collapsed or restricted Leakage at engine intake or exhaust manifold Wastegate valve malfunction (stuck open) Excessive fuel pressure Improper engine compression Ignition system malfunction Improper fuel injection timing and amount WARNING: The following troubleshooting flow chart contains the fuel system diagnosis and repair procedures. Read the following warnings before performing the fuel system services: Fuel vapor Is hazardous. It can easily ignite, causing serious Injury and damage. Always keep sparks and flames away from fuel. Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injury or death and damage. Fuel can also irritate skin and eyes. To prevent this, always complete "BEFORE REPAIR PROCEDURE" and "AFTER REPAIR PROCEDURE" described in this manual. (See BEFORE REPAIR PROCEDURE [L3 WITH TC] ). (See AFTER REPAIR PROCEDURE [L3 WITH TC] ). CAUTION: Disconnecting/connecting the quick release connector without cleaning it may possibly cause damage to the fuel pipe and quick release connector. Always clean the quick release connector joint area before disconnecting/connecting, and make sure that it is free of foreign material. |
| WARNING |
|---|
| The following troubleshooting flow chart contains the fuel system diagnosis and repair procedures. Read the following warnings before performing the fuel system services: Fuel vapor Is hazardous. It can easily ignite, causing serious Injury and damage. Always keep sparks and flames away from fuel. Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injury or death and damage. Fuel can also irritate skin and eyes. To prevent this, always complete "BEFORE REPAIR PROCEDURE" and "AFTER REPAIR PROCEDURE" described in this manual. (See BEFORE REPAIR PROCEDURE [L3 WITH TC] ). (See AFTER REPAIR PROCEDURE [L3 WITH TC] ). |
| CAUTION |
|---|
| Disconnecting/connecting the quick release connector without cleaning it may possibly cause damage to the fuel pipe and quick release connector. Always clean the quick release connector joint area before disconnecting/connecting, and make sure that it is free of foreign material. |
POSSIBLE CAUSES DESCRIPTIONS
NO. 20 FUEL ODOR (IN ENGINE COMPARTMENT) [L3 WITH TC]
| 20 | FUEL ODOR (IN ENGINE COMPARTMENT) |
|---|
| DESCRIPTION | Gasoline fuel smell or visible leakage |
| POSSIBLE CAUSE | Excessive fuel pressure Purge solenoid valve malfunction Fuel system vent system blockage Evaporative gas leakage Improper connection of evaporative related vacuum hoses Charcoal canister malfunction Fuel leakage from fuel system WARNING: The following troubleshooting flow chart contains the fuel system diagnosis and repair procedures. Read the following warnings before performing the fuel system services: Fuel vapor is hazardous. It can easily ignite, causing serious injury and damage. Always keep sparks and flames away from fuel. Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injury or death and damage. Fuel can also irritate skin and eyes. To prevent this, always complete "BEFORE REPAIR PROCEDURE" and "AFTER REPAIR PROCEDURE" described in this manual. (See BEFORE REPAIR PROCEDURE [L3 WITH TC] ). (See AFTER REPAIR PROCEDURE [L3 WITH TC] ). CAUTION: Disconnecting/connecting the quick release connector without cleaning it may possibly cause damage to the fuel pipe and quick release connector. Always clean the quick release connector joint area before disconnecting/connecting, and make sure that it is free of foreign material. |
| WARNING |
|---|
| The following troubleshooting flow chart contains the fuel system diagnosis and repair procedures. Read the following warnings before performing the fuel system services: Fuel vapor is hazardous. It can easily ignite, causing serious injury and damage. Always keep sparks and flames away from fuel. Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injury or death and damage. Fuel can also irritate skin and eyes. To prevent this, always complete "BEFORE REPAIR PROCEDURE" and "AFTER REPAIR PROCEDURE" described in this manual. (See BEFORE REPAIR PROCEDURE [L3 WITH TC] ). (See AFTER REPAIR PROCEDURE [L3 WITH TC] ). |
| CAUTION |
|---|
| Disconnecting/connecting the quick release connector without cleaning it may possibly cause damage to the fuel pipe and quick release connector. Always clean the quick release connector joint area before disconnecting/connecting, and make sure that it is free of foreign material. |
POSSIBLE CAUSES DESCRIPTIONS
NO. 23 A/C DOES NOT WORK SUFFICIENTLY [L3 WITH TC]
| 23 | BA/C DOES NOT WORK SUFFICIENTLY. |
|---|
| DESCRIPTION | A/C compressor magnetic clutch does not engage when A/C switch is turned on. |
| POSSIBLE CAUSE | Improper refrigerant charging amount Open A/C magnetic clutch Open circuit between the A/C relay and the A/C magnetic clutch Poor ground of A/C magnetic clutch Refrigerant pressure switch is stuck open. A/C relay is stuck open. Seized A/C compressor Open circuit between the A/C switch and the PCM through both the refrigerant pressure switch and the A/C amplifier |
POSSIBLE CAUSES DESCRIPTIONS
NO. 24 A/C IS ALWAYS ON OR A/C COMPRESSOR RUNS CONTINUOUSLY [L3 WITH TC]
| 24 | A/C IS ALWAYS ON OR A/C COMPRESSOR RUNS CONTINUOUSLY. |
|---|
| DESCRIPTION | A/C compressor magnetic clutch does not disengage. |
| POSSIBLE CAUSE | A/C compressor magnetic clutch engagement is stuck. A/C relay is stuck closed. Short to ground between A/C switch and PCM Short to ground circuit between A/C relay and PCM A/C relay to magnetic clutch circuit shorted to battery power |
POSSIBLE CAUSES DESCRIPTIONS
NO. 25 A/C IS NOT CUT OFF UNDER WIDE OPEN THROTTLE CONDITIONS [L3 WITH TC]
| 25 | A/C IS NOT CUT OFF UNDER WOT CONDITIONS. |
|---|
| DESCRIPTION | A/C compressor magnetic clutch does not disengage under WOT. |
| POSSIBLE CAUSE | Accelerator position sensor malfunction Loosely installed accelerator position sensor. |
POSSIBLE CAUSES DESCRIPTIONS
NO. 26 EXHAUST SULPHUR SMELL [L3 WITH TC]
| 26 | EXHAUST SULPHUR SMELL |
|---|
| DESCRIPTION | Rotten egg smell (sulphur) from exhaust |
| POSSIBLE CAUSE | Electrical connectors are disconnected or connected poorly Charcoal canister malfunction Vacuum lines are disconnected or connected improperly. Improper fuel pressure Poor fuel quality WARNING: The following troubleshooting flow chart contains fuel system diagnosis and repair procedures. Read following warnings before servicing fuel system: Fuel vapor is hazardous. It can easily ignite, causing serious injury and damage. Always keep sparks and flames away from fuel. Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injuries or death and damage. Fuel can also irritate skin and eyes. To prevent this, always complete "BEFORE REPAIR PROCEDURE" and "AFTER REPAIR PROCEDURE" described In this manual. (See BEFORE REPAIR PROCEDURE [L3 WITH TC] ). (See AFTER REPAIR PROCEDURE [L3 WITH TC] ). CAUTION: Disconnecting/connecting the quick release connector without cleaning it may possibly cause damage to the fuel pipe and quick release connector. Always clean the quick release connector joint area before disconnecting/connecting, and make sure that it is free of foreign material. |
| WARNING |
|---|
| The following troubleshooting flow chart contains fuel system diagnosis and repair procedures. Read following warnings before servicing fuel system: Fuel vapor is hazardous. It can easily ignite, causing serious injury and damage. Always keep sparks and flames away from fuel. Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injuries or death and damage. Fuel can also irritate skin and eyes. To prevent this, always complete "BEFORE REPAIR PROCEDURE" and "AFTER REPAIR PROCEDURE" described In this manual. (See BEFORE REPAIR PROCEDURE [L3 WITH TC] ). (See AFTER REPAIR PROCEDURE [L3 WITH TC] ). |
| CAUTION |
|---|
| Disconnecting/connecting the quick release connector without cleaning it may possibly cause damage to the fuel pipe and quick release connector. Always clean the quick release connector joint area before disconnecting/connecting, and make sure that it is free of foreign material. |
POSSIBLE CAUSES DESCRIPTIONS
NO. 28 FUEL FILLING SHUT OFF ISSUES [L3 WITH TC]
| 28 | Fuel filling shut off issues |
|---|
| DESCRIPTION | Fuel does not shut off properly. |
| POSSIBLE CAUSE | Clogged EVAP pipes Non-return valve malfunction Fuel shut-off valve malfunction Fuel nozzle malfunction Fuel nozzle is not inserted correctly. WARNING: The following troubleshooting flow chart contains the fuel system diagnosis and repair procedures. Read the following warnings before servicing the fuel system: Fuel vapor is hazardous. It can easily ignite, causing serious injury and damage. Always keep sparks and flames away from fuel. Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injuries or death and damage. Fuel can also irritate skin and eyes. To prevent this, always complete "BEFORE REPAIR PROCEDURE" and "AFTER REPAIR PROCEDURE" described in this manual. (See BEFORE REPAIR PROCEDURE [L3 WITH TC] ). (See AFTER REPAIR PROCEDURE [L3 WITH TC] ). CAUTION: Disconnecting/connecting the quick release connector without cleaning it may possibly cause damage to the fuel pipe and quick release connector. Always clean the quick release connector joint area before disconnecting/connecting, and make sure that it Is free of foreign material. |
| WARNING |
|---|
| The following troubleshooting flow chart contains the fuel system diagnosis and repair procedures. Read the following warnings before servicing the fuel system: Fuel vapor is hazardous. It can easily ignite, causing serious injury and damage. Always keep sparks and flames away from fuel. Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injuries or death and damage. Fuel can also irritate skin and eyes. To prevent this, always complete "BEFORE REPAIR PROCEDURE" and "AFTER REPAIR PROCEDURE" described in this manual. (See BEFORE REPAIR PROCEDURE [L3 WITH TC] ). (See AFTER REPAIR PROCEDURE [L3 WITH TC] ). |
| CAUTION |
|---|
| Disconnecting/connecting the quick release connector without cleaning it may possibly cause damage to the fuel pipe and quick release connector. Always clean the quick release connector joint area before disconnecting/connecting, and make sure that it Is free of foreign material. |
POSSIBLE CAUSES DESCRIPTIONS
NO. 29 CONSTANT VOLTAGE [L3 WITH TC]
| 29 | CONSTANT VOLTAGE |
|---|
| DESCRIPTION | Incorrect constant voltage |
| POSSIBLE CAUSE | Constant voltage circuit malfunction NOTE: MAP sensor, fuel pressure sensor and accelerator position sensor use constant voltage. |
| NOTE |
|---|
| MAP sensor, fuel pressure sensor and accelerator position sensor use constant voltage. |
POSSIBLE CAUSES DESCRIPTIONS
NO. 30 SPARK PLUG CONDITION [L3 WITH TC]
| 30 | SPARK PLUG CONDITION |
|---|
| DESCRIPTION | Incorrect spark plug condition |
| POSSIBLE CAUSE | NOTE: Inspecting the condition of the spark plugs can determine whether a problem is related to a specific cylinder or possibly all cylinders. Wet/carbon stuck on specific plug: Spark-Weak, not visible Air/fuel mixture-Excessive fuel injection volume Compression-No compression, low compression Malfunctioning spark plug Grayish white with specific plug: Air/fuel mixture-Insufficient fuel injection volume Malfunctioning spark plug Wet/carbon is stuck on all plugs: Spark-Spark weak Air/fuel mixture-Too rich Compression-Low compression Clogging in intake/exhaust system Grayish white with all plugs: Air/fuel mixture-Too lean WARNING: The following troubleshooting flow chart contains the fuel system diagnosis and repair procedures. Read the following warnings before servicing the fuel system: Fuel vapor is hazardous. It can easily ignite, causing serious injury and damage. Always keep sparks and flames away from fuel. Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injuries or death and damage. Fuel can also irritate skin and eyes. To prevent this, always complete "BEFORE REPAIR PROCEDURE" and "AFTER REPAIR PROCEDURE" described in this manual. (See BEFORE REPAIR PROCEDURE [L3 WITH TC] ). (See AFTER REPAIR PROCEDURE [L3 WITH TC] ). CAUTION: Disconnecting/connecting the quick release connector without cleaning it may possibly cause damage to the fuel pipe and quick release connector. Always clean the quick release connector joint area before disconnecting/connecting, and make sure that it is free of foreign material. |
| NOTE |
|---|
| Inspecting the condition of the spark plugs can determine whether a problem is related to a specific cylinder or possibly all cylinders. |
| WARNING |
|---|
| The following troubleshooting flow chart contains the fuel system diagnosis and repair procedures. Read the following warnings before servicing the fuel system: Fuel vapor is hazardous. It can easily ignite, causing serious injury and damage. Always keep sparks and flames away from fuel. Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injuries or death and damage. Fuel can also irritate skin and eyes. To prevent this, always complete "BEFORE REPAIR PROCEDURE" and "AFTER REPAIR PROCEDURE" described in this manual. (See BEFORE REPAIR PROCEDURE [L3 WITH TC] ). (See AFTER REPAIR PROCEDURE [L3 WITH TC] ). |
| CAUTION |
|---|
| Disconnecting/connecting the quick release connector without cleaning it may possibly cause damage to the fuel pipe and quick release connector. Always clean the quick release connector joint area before disconnecting/connecting, and make sure that it is free of foreign material. |
POSSIBLE CAUSES DESCRIPTIONS
Input Signal System Investigation Procedure
- Find an unusual signal. (See «FINDING UNUSUAL SIGNALS»(ref-244574-S38326058142006092500000) ).
- Locate the source. (See «LOCATING THE SOURCE OF UNUSUAL SIGNALS»(ref-244574-S41535987312006092500000) ).
- Repair or replace the defective part.
- Confirm that the unusual signal has been erased.
Finding unusual signals
While referring to 01-02B-7 ON-BOARD DIAGNOSTIC TEST [L3 WITH TC], use the PID/DATA monitor and record function to inspect the input signal system relating to the problem.
- Start the engine and idle the vehicle. You can assume that any signals that are out of specification by a wide margin are unusual.
- When recreating the problem, any sudden change in the monitor input signals that is not consciously created by the driver can be determined as unusual.
Locating the source of unusual signals
| CAUTION | Compare the WDS or equivalent monitor voltage with the measurement voltage using the digital measurement system function. If you use another tester, a misreading may occur. When measuring the voltage, attach the tester ground to the ground of the PCM that Is being tested, or to the engine itself. If this is not done, the measured voltage and actual voltage may differ After connecting the pin to a waterproof coupler, confirm continuity and measure the voltage, and inspect the waterproof connector for cracks. If there are any, use sealant to fix them. Failure to do this may result in deterioration of the wiring harness or terminal from water damage, leading to problems with the vehicle. |
Scheme 116
Scheme 116: Variable resistance type 1 (TP sensor and EGR boost sensor)
Investigate the input signal system for variable resistance type 1
- When an unusual signal is received, measure the #1 PCM terminal voltage. If the #1 terminal voltage and the WDS or equivalent monitor voltage are the same, proceed to the next step. If there is a difference of 0.5 V or more , inspect for the following points concerning the PCM connector: Female terminal opening is loose. Coupler (pin holder) damage Pin discoloration (blackness) Wiring harness/pin crimp is loose or disconnected.
- Measure the #2 sensor terminal voltage. If there is a 0.5 V or more difference between the sensor and WDS or equivalent voltages, inspect the wiring harness for open or short circuits. If the sensor and WDS or equivalent voltages are the same, inspect for the following points concerning the sensor connector: Female terminal opening is loose. Coupler (pin holder) damage Pin discoloration (blackness) If there are no problems, proceed to next investigation below.
Investigate the standard power supply system for variable resistance type 1
- Confirm that the #3 terminal is at 5 V . If the measured voltage on the #3 terminal is 5 V , inspect the following points on the sensor connector. If there is no problem, inspect for the following: Female terminal opening loose Coupler (pin holder) damage Pin discoloration (blackness) If the #3 terminal measures other than 5 V , inspect for the following: Open or short circuit in wiring harness Wiring harness/pin crimp is loose or disconnected.
Investigate the ground system for variable resistance type 1
- Confirm that terminal sensor #5 is at 0 V . If it is at 0 V , inspect the sensor. If necessary, replace the sensor. If not, inspect for the following: Open or short circuit in wiring harness Female terminal opening is loose causing an open or short circuit in wiring harness Coupler (pin holder) damage Pin discoloration (blackness) Wiring harness/pin crimp is loose or disconnected.
Scheme 117
Scheme 117: Variable resistance type 2 (fuel tank level sensor and mass air flow (MAF) sensor)
Investigate the ground system for variable resistance type 2
- Confirm that terminal sensor #4 is at 0 V . If it is at 0 V , inspect the sensor. If necessary, replace the sensor. If not at 0 V , inspect for the following: Open circuit in wiring harness Female terminal opening is loose. Coupler (pin holder) damage Pin discoloration (blackness) Wiring harness/pin crimp is loose or disconnected.
Investigate the input signal system for variable resistance type 2
- When an unusual signal is received, measure the #1 PCM terminal voltage. If the #1 terminal voltage and the WDS or equivalent monitor voltage are the same, proceed to the next step. If there is a difference of 0.5 V or more , inspect for the following points concerning the PCM connector: Female terminal opening is loose. Coupler (pin holder) damage Pin discoloration (blackness) Wiring harness/pin crimp is loose or disconnected.
- Measure the #2 sensor terminal voltage. If there is a 0.5 V or more difference between the sensor and WDS or equivalent voltages, inspect the wiring harness for open or short circuits. If the sensor and WDS or equivalent voltages are the same, inspect the following points concerning the sensor connector: Female terminal opening is loose. Coupler (pin holder) damage Pin discoloration (blackness) Wiring harness/pin crimp is loose or disconnected. If there are no problems, proceed to next investigation below.
Investigate the electrical supply system for variable resistance type 2
- Confirm that the sensor #3 terminal is B+ . If the measured voltage on the #3 terminal is B+ , inspect the following points on the sensor connector. If there is no problem, inspect for the following: Female terminal opening is loose. Coupler (pin holder) damage Pin discoloration (blackness) If the #3 terminal measures other than B+ , inspect the following: Open or short circuit in wiring harness Wiring harness/pin crimp is loose or disconnected.
Scheme 118
Scheme 118: Thermistor type (IAT sensor and ECT sensor)
Investigate the input signal system for thermistor type
- When an unusual signal is received, measure the #1 PCM terminal voltage. If the #1 terminal voltage and the WDS or equivalent monitor voltage are the same, proceed to the next step. If there is a difference of 0.5 V or more , inspect the following points concerning the PCM connector: Female terminal opening loose Coupler (pin holder) damage Pin discoloration (blackness) Wiring harness/pin crimp is loose or disconnected.
- Measure the #2 sensor terminal voltage. If there is a 0.5 V or more difference between the sensor and WDS or equivalent voltages, inspect the wiring harness for open or short circuits. If the sensor and WDS or equivalent voltages are the same, inspect the following points concerning the sensor connector: Female terminal opening is loose. Coupler (pin holder) damage Pin discoloration (blackness) Wiring harness/pin crimp is loose or disconnected. If there are no problems, proceed to next investigation below.
Scheme 119
Scheme 119: Investigate the ground system for thermistor type
- Confirm that terminal sensor #3 is at 0 V . If it is at 0 V , inspect the sensor. If necessary, replace the sensor. If not, inspect for the following: Open circuit in wiring harness Female terminal opening is loose. Coupler (pin holder) damage Pin discoloration (blackness) Wiring harness/pin crimp is loose or disconnected.
- Measure the #1 PCM terminal voltage and confirm that it is at 0 V or 5 V when the ignition switch to the ON position and the engine is idling. If it is at 0 V or 5 V , intermittent concern exists. (See «INTERMITTENT CONCERN TROUBLESHOOTING [L3 WITH TC]»(ref-244574-S08968406542006092500000) ). If not, inspect the following points concerning the PCM connector. If there is no problem, inspect for the following: Female terminal opening is loose. Coupler (pin holder) damage Pin discoloration (blackness) Wiring harness/pin crimp is loose or disconnected.
- Measure the #2 sensor terminal voltage and confirm that it is at 0 V or 5 V when the ignition switch to the ON position and the engine is idling. If it is at 0 V or 5 V , intermittent concern exists. (See «INTERMITTENT CONCERN TROUBLESHOOTING [L3 WITH TC]»(ref-244574-S08968406542006092500000) ). If not, inspect the following points concerning the sensor connector: If there is no problem, inspect for the following. Female terminal opening is loose. Coupler (pin holder) damage Pin discoloration (blackness) Wiring harness/pin crimp is loose or disconnected.
- Confirm that the #3 terminal switch voltage is at 0 V . If it is at 0 V , inspect the sensor. If necessary, replace the sensor. If necessary, replace the sensor. If not, inspect for the following: Open circuit in wiring harness. Female terminal opening is loose. Coupler (pin holder) damage Pin discoloration (blackness) Wiring harness/pin crimp is loose or disconnected.
Cooling fans do not operate
- Open circuit between the fan control module and the cooling fan relay
- Open circuit between fan control module and ground
- Poor connection of the fan control module connector
- Fan control module (See «FAN CONTROL MODULE INSPECTION [L3 WITH TC]»(ref-244581-S26212258092006092500000) ).
Cooling fan motor No.1 does not operate
- Open or short to ground circuit between the fan control module and cooling fan motor No.1
- Poor connection of the fan control module connector or cooling fan motor No.1 connector
- Cooling fan motor No.1 (See «COOLING FAN MOTOR INSPECTION [L3 WITH TC]»(ref-244581-S07113548252006092500000) ).
- Fan control module (See «FAN CONTROL MODULE INSPECTION [L3 WITH TC]»(ref-244581-S26212258092006092500000) ).
Cooling fan motor No.2 does not operate
- Open or short to ground circuit between the fan control module and the cooling fan motor No.2
- Poor connection of the fan control module connector or the cooling fan motor No.1 connector
- Cooling fan motor No.2 (See «COOLING FAN MOTOR INSPECTION [L3 WITH TC]»(ref-244581-S07113548252006092500000) ).
- Fan control module (See «FAN CONTROL MODULE INSPECTION [L3 WITH TC]»(ref-244581-S26212258092006092500000) ).
![Scheme 115: NO. 1 MELTING OF MAIN OR OTHER FUSES [L3 WITH TC]](https://i.diagnostdata.com/repair/c3/c384a39c31c0ae10de20b8f9390ba971273d585d0c3681118b9fac8412fec95b.webp)
