Gasoline Engine Control System: Diagnosis Kia Spectra I рестайлинг 2

10) DTC FORMAT

1. Diagnostic Trouble Code (SAE J2012)
2. DTCs used in OBD-II vehicles will begin with a letter and are followed by four numbers.

The letter of the beginning of the DTC identifies the function of the monitored device that has failed. A "P" indicates a powertrain device, "C" indicates a chassis device. "B" is for body device and "U" indicates a network or data link code. The first number indicates if the code is generic (common to all manufacturers) or if it is manufacturer specific. A "0" & "2" indicates generic, "1" indicates manufacturer-specific. The second number indicates the system that is affected with a number between 1 and 7.

The following is a list showing what numbers are assigned to each system.

1. Fuel and air metering
2. Fuel and air metering (injector circuit malfunction only)
3. Ignition system or misfire
4. Auxiliary emission controls
5. Vehicle speed controls and idle control system
6. Computer output circuits
7. Transmission

The last two numbers of the DTC indicates the component or section of the system where the fault is located.

ECM PROBLEM INSPECTION PROCEDURE

1. TEST ECM GROUND CIRCUIT: Measure resistance between ECM and chassis ground using the backside of ECM harness connector as ECM side check point. If the problem is found, repair it. Specification (Resistance): 1ohms or less
2. TEST ECM CONNECTOR: Disconnect the ECM connector and visually check the ground terminals on ECM side and harness side for bent pins or poor contact pressure. If the problem is found, repair it.
3. If problem is not found in Step 1 and 2, the ECM could be faulty. If so, replace the ECM with a new one, and then check the vehicle again. If the vehicle operates normally then the problem was likely with the ECM.
4. RETEST THE ORIGINAL ECM: Install the original ECM (may be broken) into a known-good vehicle and check the vehicle. If the problem occurs again, replace the original ECM with a new one. If problem does not occur, this is intermittent problem (Refer to «INTERMITTENT PROBLEM INSPECTION PROCEDURE»(ref-278781-S24686287062008020400000) in BASIC INSPECTION PROCEDURE).

COMPONENT INSPECTION

1. Turn ignition switch OFF.
2. Disconnect IATS connector.
3. Measure resistance between IATS terminals 3 and 4.
4. Check that the resistance is within the specification.

Specification: Refer to SPECIFICATION .

1. Turn ignition switch OFF.
2. Disconnect ECTS connector.
3. Remove the ECTS.
4. After immersing the thermistor of the sensor into engine coolant, measure resistance between ECTS terminals 1 and 3.
5. Check that the resistance is within the specification.

Specification: Refer to SPECIFICATION .

1. Connect a scan tool on the Data Link Connector (DLC).
2. Start engine and check output voltages of TPS at C.T and W.O.T. Specification: Refer to «SPECIFICATION»(ref-278782-S03316636142008020400000) .
3. Turn ignition switch OFF and disconnect the scan tool from the DLC.
4. Disconnect TPS connector and measure resistance between TPS terminals 2 and 3

Specification: Refer to SPECIFICATION .

1. Check signal waveform of CMPS and CKPS using a scan tool. Specification: Refer to «WAVEFORM»(ref-278782-S16767211712008020400000) .

1. Check signal waveform of CKPS and CMPS using a scan tool.

Specification: Refer to WAVEFORM .

1. Disconnect the HO2S connector.
2. Measure resistance between HO2S heater terminals 5 and 6 [B1/S1]. Measure resistance between HO2S heater terminals 3 and 4 [B1/S2].
3. Check that the resistance is within the specification.

Specification: Refer to SPECIFICATION .

1. Turn ignition switch OFF.
2. Disconnect injector connector.
3. Measure resistance between injector terminals 1 and 2.
4. Check that the resistance is within the specification.

Specification: Refer to SPECIFICATION .

1. Turn ignition switch OFF.
2. Disconnect ISCA connector.
3. Measure resistance between ISCA terminals 2 and 1 [Opening Coil].
4. Measure resistance between ISCA terminals 2 and 3 [Closing Coil].
5. Check that the resistance is within the specification.

Specification: Refer to SPECIFICATION .

1. Turn ignition switch OFF.
2. Disconnect OCV connector.
3. Measure resistance between OCV terminals 1 and 2.
4. Check that the resistance is within the specification.

Specification: Refer to SPECIFICATION .

1. Turn ignition switch OFF.
2. Disconnect OTS connector.
3. Remove the OTS.
4. After immersing the thermistor of the sensor into water measure resistance between OTS terminals 1 and 2.
5. Check that the resistance is within the specification.

Specification: Refer to SPECIFICATION .

1. Turn ignition switch OFF.
2. Disconnect PCSV connector.
3. Measure resistance between PCSV terminals 1 and 2.
4. Check that the resistance is within the specification.

Specification: Refer to SPECIFICATION .

1. Connect a scan tool on Diagnosis connector (DLC).
2. Check FTPS output voltage at idle.

IDLE CONDITION

1. Turn ignition switch OFF.
2. Disconnect CCV connector.
3. Measure resistance between CCV terminals 1 and 2.
4. Check that the resistance is within the specification.

SPECIFICATION: Refer to SPECIFICATION