When a DTC is stored in ECM
When a DTC is stored in ECM and MIL is ON, a permanent DTC is erased with MIL shutoff if the same malfunction is not detected after performing the driving pattern for MIL shutoff three times in a raw.
Scheme 107
When a DTC is not stored in ECM
The erasing method depends on a permanent DTC stored in ECM. Refer to the following table.
Note. If the applicable permanent DTC includes multiple groups, perform the procedure of Group B first. If the permanent DTC is not erased, perform the procedure of Group A.
| X: Applicable -: Not applicable | ||||
|---|---|---|---|---|
| Group (1) | Perform "DTC CONFIRMATION PROCEDURE" for applicable DTCs. | Driving pattern | Reference | |
| B | D | |||
| A | X | " WORK PROCEDURE (GROUP A) " | ||
| B | X | X | " WORK PROCEDURE (GROUP B) " | |
| (1) For group, refer to " DTC INDEX ". | ||||
| (1) | For group, refer to " DTC INDEX ". |
PERMANENT DTC ITEM
For permanent DTC items, MIL turns ON. Refer to " DTC INDEX ".
Scheme 108
Scheme 109
- CHECK DTC Check DTC. Is any DTC detected? YES: Repair malfunction(s) and erase DTC. " «ON BOARD DIAGNOSIS FUNCTION»(ref-593943-S18707340172014012200000) " or " «CONSULT FUNCTION»(ref-593943-S31409758392014012200000) ". NO: GO TO 2.
- CHECK PERMANENT DTC With CONSULT Turn ignition switch OFF and wait at least 10 seconds. Turn ignition switch ON. Turn ignition switch OFF and wait at least 10 seconds. Turn ignition switch ON. Select "PERMANENT DTC STATUS" mode with CONSULT. With GST Turn ignition switch OFF and wait at least 10 seconds. Turn ignition switch ON. Turn ignition switch OFF and wait at least 10 seconds. Turn ignition switch ON. Select Service $0A with GST. Is any permanent DTC detected? YES: GO TO 3. NO: END
- PERFORM DTC CONFIRMATION PROCEDURE Perform "DTC CONFIRMATION PROCEDURE" for DTCs which are the same as permanent DTCs stored in ECM. Refer to " «DTC INDEX»(ref-593942-S17416639672014012200000) ". : GO TO 4.
- CHECK PERMANENT DTC With CONSULT Turn ignition switch OFF and wait at least 10 seconds. Turn ignition switch ON. Turn ignition switch OFF and wait at least 10 seconds. Turn ignition switch ON. Select "PERMANENT DTC STATUS" mode with CONSULT. With GST Turn ignition switch OFF and wait at least 10 seconds. Turn ignition switch ON. Turn ignition switch OFF and wait at least 10 seconds. Turn ignition switch ON. Select Service $0A with GST. Is any permanent DTC detected? YES: GO TO 1 . NO: END
Scheme 110
Note. Drive the vehicle according to only driving patterns indicating "INCMP" in driving patterns B and D on the "PERMANENT DTC STATUS" screen.
- CHECK DTC Check DTC. Is any DTC detected? YES: Repair malfunction(s) and erase DTC. Refer to " «ON BOARD DIAGNOSIS FUNCTION»(ref-593943-S18707340172014012200000) " or " «CONSULT FUNCTION»(ref-593943-S31409758392014012200000) ". NO: GO TO 2.
- CHECK PERMANENT DTC With CONSULT Turn ignition switch OFF and wait at least 10 seconds. Turn ignition switch ON. Turn ignition switch OFF and wait at least 10 seconds. Turn ignition switch ON. Select "PERMANENT DTC STATUS" mode with CONSULT. With GST Turn ignition switch OFF and wait at least 10 seconds. Turn ignition switch ON. Turn ignition switch OFF and wait at least 10 seconds. Turn ignition switch ON. Select Service $0A with GST. Is any permanent DTC detected? YES: GO TO 3. NO: END
- DRIVE DRIVING PATTERN B CAUTION: Always drive at a safe speed. Never erase self-diagnosis results. If self-diagnosis results are erased during the trip of driving pattern B or D, the counter of driving pattern B and D is reset. With CONSULT Start engine and warm it up to normal operating temperature. Use "PERMANENT DTC WORK SUPPORT" mode with CONSULT to drive the vehicle according to driving pattern B. Refer to " «CONSULT FUNCTION»(ref-593943-S31409758392014012200000) ", " «DIAGNOSIS DESCRIPTION: DRIVING PATTERN»(ref-593943-S17921811412014012200000) ". With GST Start engine and warm it up to normal operating temperature. Drive the vehicle according to driving pattern B. Refer to " «DIAGNOSIS DESCRIPTION: DRIVING PATTERN»(ref-593943-S17921811412014012200000) ". : GO TO 4.
- CHECK PERMANENT DTC With CONSULT Turn ignition switch OFF and wait at least 10 seconds. Turn ignition switch ON. Turn ignition switch OFF and wait at least 10 seconds. Turn ignition switch ON. Select "PERMANENT DTC STATUS" mode with CONSULT. With GST Turn ignition switch OFF and wait at least 10 seconds. Turn ignition switch ON. Turn ignition switch OFF and wait at least 10 seconds. Turn ignition switch ON. Select Service $0A with GST. Is any permanent DTC detected? YES: GO TO 5. NO: END
- DRIVE DRIVING PATTERN D CAUTION: Always drive at a safe speed. Never erase self-diagnosis results. If self-diagnosis results are erased during the trip of driving pattern B or D, the counter of driving pattern B and D is reset. Drive the vehicle according to driving pattern D. Refer to " «DIAGNOSIS DESCRIPTION: DRIVING PATTERN»(ref-593943-S17921811412014012200000) ". : GO TO 6.
- CHECK PERMANENT DTC With CONSULT Turn ignition switch OFF and wait at least 10 seconds. Turn ignition switch ON. Turn ignition switch OFF and wait at least 10 seconds. Turn ignition switch ON. Select "PERMANENT DTC STATUS" mode with CONSULT. With GST Turn ignition switch OFF and wait at least 10 seconds. Turn ignition switch ON. Turn ignition switch OFF and wait at least 10 seconds. Turn ignition switch ON. Select Service $0A with GST. Is any permanent DTC detected? YES: GO TO 1 . NO: END
Scheme 111
GST (Generic Scan Tool)
When GST is connected with a data link connector equipped on the vehicle side, it will communicate with the control unit equipped in the vehicle and then enable various kinds of diagnostic tests. Refer to " DIAGNOSIS DESCRIPTION ".
Note. Service $0A is not applied for regions where it is not mandated.
DTC AND 1ST TRIP DTC
The 1st trip DTC (whose number is the same as the DTC number) is displayed for the latest self-diagnostic result obtained. If the ECM memory was cleared previously, and the 1st trip DTC did not recur, the 1st trip DTC will not be displayed.
If a malfunction is detected during the 1st trip, the 1st trip DTC is saved in the ECM memory. The MIL will not light up (two trip detection logic). If the same malfunction is not detected in the 2nd trip (meeting the required driving pattern), the 1st trip DTC is cleared from the ECM memory. If the same malfunction is detected in the 2nd trip, both the 1st trip DTC and DTC are saved in the ECM memory and the MIL lights up. In other words, the DTC is stored in the ECM memory and the MIL lights up when the same malfunction occurs in two consecutive trips. If a 1st trip DTC is stored and a non-diagnostic operation is performed between the 1st and 2nd trips, only the 1st trip DTC will continue to be stored. For malfunctions that blink or light up the MIL during the 1st trip, the DTC and 1st trip DTC are stored in the ECM memory.
For malfunctions in which 1st trip DTCs are displayed, refer to " DTC INDEX ". These items are required by legal regulations to continuously monitor the system/component. In addition, the items monitored non-continuously are also displayed on CONSULT.
1st trip DTC is specified in Service $07 of SAE J1979/ISO 15031-5. 1st trip DTC detection occurs without illuminating the MIL and therefore does not warn the driver of a malfunction.
When a 1st trip DTC is detected, check, print out or write down and erase (1st trip) DTC and Freeze Frame data as specified in Work Flow procedure Step 2, refer to " WORK FLOW ". Then perform DTC Confirmation Procedure or Component Function Check to try to duplicate the malfunction. If the malfunction is duplicated, the item requires repair.
RELATIONSHIP BETWEEN MIL, 1ST TRIP DTC, DTC, AND DETECTABLE ITEMS
- When a malfunction is detected for the first time, the 1st trip DTC and the 1st trip freeze frame data are stored in the ECM memory.
- When the same malfunction is detected in two consecutive trips, the DTC and the freeze frame data are stored in the ECM memory, and the MIL will come on.
- The MIL will turn OFF after the vehicle is driven 3 times (driving pattern B) with no malfunction. The drive is counted only when the recorded driving pattern is met (as stored in the ECM). If another malfunction occurs while counting, the counter will reset.
- The DTC and the freeze frame data will be stored until the vehicle is driven 40 times (driving pattern A) without the same malfunction recurring (except for Misfire and Fuel Injection System). For Misfire and Fuel Injection System, the DTC and freeze frame data will be stored until the vehicle is driven 80 times (driving pattern C) without the same malfunction recurring. The "TIME" in "SELF-DIAGNOSTIC RESULTS" mode of CONSULT will count the number of times the vehicle is driven.
- The 1st trip DTC is not displayed when the self-diagnosis results in OK for the 2nd trip.
PERMANENT DTC SET TIMING
The setting timing of permanent DTC is stored in control module with the lighting of MIL when a DTC is confirmed.
ON BOARD DIAGNOSIS ITEM
The on board diagnostic system has the following functions.
| Diagnostic test mode | Function |
|---|---|
| Bulb check | MIL can be checked. |
| SRT status | ECM can read if SRT codes are set. |
| Malfunction warning | If ECM detects a malfunction, it illuminates or blinks MIL to inform the driver that a malfunction has been detected. |
| Self-diagnostic results | DTCs or 1st trip DTCs stored in ECM can be read. |
| Accelerator pedal released position learning | ECM can learn the accelerator pedal released position. Refer to " ACCELERATOR PEDAL RELEASED POSITION LEARNING: DESCRIPTION ". |
| Throttle valve closed position learning | ECM can learn the throttle valve closed position. Refer to " THROTTLE VALVE CLOSED POSITION LEARNING: DESCRIPTION ". |
| Idle air volume learning | ECM can learn the idle air volume. Refer to " IDLE AIR VOLUME LEARNING: DESCRIPTION ". |
| Mixture ratio self-learning value clear | Mixture ratio self-learning value can be erased. Refer to " MIXTURE RATIO SELF-LEARNING VALUE CLEAR: DESCRIPTION ". |
SELF-DIAGNOSTIC RESULTS MODE
Description
This function allows to indicate DTCs or 1st trip DTCs stored in ECM according to the number of times MIL is blinking.
How to Set Self-diagnostic Results Mode
Note. It is better to count the time accurately with a clock. It is impossible to switch the diagnostic mode when an accelerator pedal position sensor circuit has a malfunction. After ignition switch is turned off, ECM is always released from the "self-diagnostic results" mode.
Scheme 112
- Confirm that accelerator pedal is fully released, turn ignition switch ON and wait 3 seconds.
- Repeat the following procedure quickly five times within 5 seconds. Fully depress the accelerator pedal. Fully release the accelerator pedal.
- Wait 7 seconds, fully depress the accelerator pedal and keep it depressed for approx. 10 seconds until the MIL starts blinking. NOTE: Do not release the accelerator pedal for 10 seconds if MIL starts blinking during this period. This blinking is displaying SRT status and is continued for another 10 seconds.
- Fully release the accelerator pedal. ECM has entered to "Self-diagnostic results" mode. NOTE: Wait until the same DTC (or 1st trip DTC) appears to completely confirm all DTCs.
How to Read Self-diagnostic Results
The DTC and 1st trip DTC are indicated by the number of blinks of the MIL as shown below.
The DTC and 1st trip DTC are displayed at the same time. If the MIL does not illuminate in diagnostic test mode I (Malfunction warning), all displayed items are 1st trip DTCs. If only one code is displayed when the MIL illuminates in "malfunction warning" mode, it is a DTC; if two or more codes are displayed, they may be either DTCs or 1st trip DTCs. DTC No. is same as that of 1st trip DTC. These unidentified codes can be identified by using the CONSULT or GST. A DTC will be used as an example for how to read a code.
Scheme 113
A particular trouble code can be identified by the number of four-digit numeral flashes per the following.
| Number | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | A | B | C | D | E | F |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Flashes | 10 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 11 | 12 | 13 | 14 | 15 | 16 |
The length of time the 1, 000th-digit numeral flashes on and off is 1.2 seconds consisting of an ON (0.6-seconds) - OFF (0.6-seconds) cycle.
The 100th-digit numeral and lower digit numerals consist of a 0.3-seconds ON and 0.3-seconds OFF cycle.
A change from one digit numeral to another occurs at an interval of 1.0-second OFF. In other words, the later numeral appears on the display 1.3 seconds after the former numeral has disappeared.
A change from one trouble code to another occurs at an interval of 1.8-seconds OFF.
In this way, all the detected malfunctions are classified by their DTC numbers. The DTC 0000 refers to no malfunction. Refer to " DTC INDEX ".
How to Erase Self-diagnostic Results
By performing this procedure, ECM memory is erased and the following diagnostic information is erased as well.
- Diagnostic trouble codes
- 1st trip diagnostic trouble codes
- Freeze frame data
- 1st trip freeze frame data
- System readiness test (SRT) codes
- Test values NOTE: Also, if a battery terminal is disconnected, ECM memory is erased and the diagnostic information as listed above is erased. (The amount of time required for erasing may vary from a few seconds to several hours.) Turn ignition switch OFF and wait at least 10 seconds. Turn ignition switch ON. Turn ignition switch OFF and wait at least 10 seconds. Turn ignition switch ON. Set ECM in "self-diagnostic results" mode. The diagnostic information has been erased from the backup memory in the ECM. Fully depress the accelerator pedal and keep it depressed for more than 10 seconds. Fully release the accelerator pedal, and confirm the DTC 0000 is displayed.
SELF DIAGNOSTIC RESULT MODE
Self Diagnostic Item
Regarding items of DTC and 1st trip DTC, refer to " DTC INDEX ".
How to Read DTC and 1st Trip DTC
DTCs and 1st trip DTCs related to the malfunction are displayed in "self-diag results".
- When ECM detects a 1st trip DTC, 1t" is displayed for "TIME".
- When ECM has detected a current DTC, "0" is displayed for "TIME".
- If "TIME" is neither "0" nor "1t", the DTC occurred in the past and ECM shows the number of times the vehicle has been driven since the last detection of the DTC.
How to Erase DTC and 1st Trip DTC
Note. If the ignition switch stays ON after repair work, be sure to turn ignition switch OFF once. Wait at least 10 seconds and then turn it ON (engine stopped) again. If the DTC is not for CVT related items (see " DTC INDEX "), skip step 1.
- Erase DTC in TCM. Refer to " «DTC INDEX»(ref-593954-S29657786712014012200000) ".
- Select "ENGINE" with CONSULT.
- Select "SELF-DIAG RESULTS".
- Touch "ERASE". (DTC in ECM will be erased.) FREEZE FRAME DATA AND 1ST TRIP FREEZE FRAME DATA Freeze frame data item (1) Description DIAG TROUBLE CODE [PXXXX] The engine control component part/control system has a trouble code that is displayed as PXXXX. (Refer to " «DTC INDEX»(ref-593942-S17416639672014012200000) ".) FUEL SYS-B1 "Fuel injection system status" at the moment a malfunction is detected is displayed. One of the following mode is displayed. Mode2: Open loop due to detected system malfunction Mode3: Open loop due to driving conditions (power enrichment, deceleration enleanment) Mode4: Closed loop - using oxygen sensor(s) as feedback for fuel control Mode5: Open loop - has not yet satisfied condition to go to closed loop FUEL SYS-B2 CAL/LD VALUE [%] The calculated load value at the moment a malfunction is detected is displayed. COOLANT TEMP [°C] or [°F] The engine coolant temperature at the moment a malfunction is detected is displayed. L-FUEL TRM-B1 [%] "Long-term fuel trim" at the moment a malfunction is detected is displayed. The long-term fuel trim indicates much more gradual feedback compensation to the base fuel schedule than short-term fuel trim. L-FUEL TRM-B2 [%] S-FUEL TRM-B1 [%] "Short-term fuel trim" at the moment a malfunction is detected is displayed. The short-term fuel trim indicates dynamic or instantaneous feedback compensation to the base fuel schedule. S-FUEL TRM-B2 [%] ENGINE SPEED [rpm] The engine speed at the moment a malfunction is detected is displayed. VEHICL SPEED [km/h] or [mph] The vehicle speed at the moment a malfunction is detected is displayed. ABSOL TH.P/S [%] The throttle valve opening angle at the moment a malfunction is detected is displayed. B/FUEL SCHDL [msec] The base fuel schedule at the moment a malfunction is detected is displayed. INT/A TEMP SE [°C] or [°F] The intake air temperature at the moment a malfunction is detected is displayed. INT MANI PRES [kPa] These items are displayed but are not applicable to this model. COMBUST CONDITION (1) The items are the same as those of 1st trip freeze frame data.
ACTIVE TEST MODE
| TEST ITEM | CONDITION | JUDGMENT | CHECK ITEM (REMEDY) |
|---|---|---|---|
| FUEL INJECTION | Engine: Return to the original non-standard condition Change the amount of fuel injection using CONSULT. | If malfunctioning symptom disappears, see CHECK ITEM. | Harness and connectors Fuel injector Air fuel ratio (A/F) sensor 1 |
| IGNITION TIMING | Engine: Return to the original non-standard condition Timing light: Set Retard the ignition timing using CONSULT. | If malfunctioning symptom disappears, see CHECK ITEM. | Perform Idle Air Volume Learning. |
| POWER BALANCE | Engine: After warming up, idle the engine. A/C switch OFF Selector lever: P or N position Cut off each injector signal one at a time using CONSULT. | Engine runs rough or stops. | Harness and connectors Compression Fuel injector Power transistor Spark plug Ignition coil |
| COOLING FAN (1) | Ignition switch: ON Turn the cooling fan "HI", "MID", "LOW" and "OFF" using CONSULT. | Cooling fan moves and stops. | Harness and connectors Cooling fan motor IPDM E/R |
| ENG COOLANT TEMP | Engine: Return to the original non-standard condition Change the engine coolant temperature using CONSULT. | If malfunctioning symptom disappears, see CHECK ITEM. | Harness and connectors Engine coolant temperature sensor Fuel injector |
| FUEL PUMP RELAY | Ignition switch: ON (Engine stopped) Turn the fuel pump relay "ON" and "OFF" using CONSULT and listen to operating sound. | Fuel pump relay makes the operating sound. | Harness and connectors Fuel pump relay |
| VIAS S/V-1 | Ignition switch: ON Turn solenoid valve "ON" and "OFF" using CONSULT and listen to operating sound. | Solenoid valve makes the operating sound. | Harness and connectors Solenoid valve |
| VIAS S/V-2 | Ignition switch: ON Turn solenoid valve "ON" and "OFF" using CONSULT and listen to operating sound. | Solenoid valve makes the operating sound. | Harness and connectors Solenoid valve |
| ENGINE MOUNTING | Ignition switch: ON Turn electronic controlled engine mount "IDLE" and "TRVL" with CONSULT. | Electronic controlled engine mount makes the operating sound. | Harness and connectors Electronic controlled engine mount |
| PURG VOL CONT/V | Engine: After warming up, run engine at 1, 500 rpm. Change the EVAP canister purge volume control solenoid valve opening percent using CONSULT. | Engine speed changes according to the opening percent. | Harness and connectors Solenoid valve |
| FUEL/T TEMP SEN | Change the fuel tank temperature using CONSULT. | ||
| VENT CONTROL/V | Ignition switch: ON (Engine stopped) Turn solenoid valve "ON" and "OFF" with the CONSULT and listen to operating sound. | Solenoid valve makes an operating sound. | Harness and connectors Solenoid valve |
| INT V/T ASSIGN ANGLE | Engine: Return to the original non-standard condition Change intake valve timing using CONSULT. | If malfunctioning symptom disappears, see CHECK ITEM. | Harness and connectors Intake valve timing control solenoid valve |
| ALTERNATOR DUTY | Engine: Idle Change duty ratio using CONSULT. | Battery voltage changes. | Harness and connectors IPDM E/R Alternator |
| (1) Leaving cooling fan OFF with CONSULT while engine is running may cause the engine to overheat. | |||
| (1) | Leaving cooling fan OFF with CONSULT while engine is running may cause the engine to overheat. |
TEST ITEM
DTC & SRT CONFIRMATION MODE
SRT STATUS Mode
- For items whose SRT codes are set, "CMPLT" is displayed on the CONSULT screen; for items whose SRT codes are not set, "INCMP" is displayed.
- "SRT STATUS" provides the presence or absence of permanent DTCs stored in ECM memory.
PERMANENT DTC STATUS Mode
How to display permanent DTC status
- Turn ignition switch OFF and wait at least 10 seconds.
- Turn ignition switch ON.
- Turn ignition switch OFF and wait at least 10 seconds.
- Turn ignition switch ON.
- Select "PERMANENT DTC STATUS" in "DTC & SRT CONFIRMATION" mode with CONSULT.
Note. Permanent DTCs stored in ECM memory are displayed on the CONSULT screen to show if a driving pattern required for erasing permanent DTCs is complete (CMPLT) or incomplete (INCMP).
| CAUTION | Since the "PERMANENT DTC STATUS" screen displays the previous trip information, repeat the following twice to update the information: "Ignition switch OFF", "Wait for more than 10 seconds" and "Ignition switch ON". |
Scheme 114
Note. This mode is not used in regions that permanent DTCs are not regulated by law.
SRT WORK SUPPORT Mode
This mode enables a technician to drive a vehicle to set the SRT while monitoring the SRT status.
PERMANENT DTC WORK SUPPORT Mode
This mode enables a technician to drive a vehicle to complete the driving pattern that is required for erasing permanent DTC.
Note. This mode is not used in regions that permanent DTCs are not regulated by law.
| Test mode | Test item | Corresponding DTC No. |
|---|---|---|
| EVAPORATIVE SYSTEM | EVP V/S LEAK P0456/P1456 (1) | P0456 |
| PURG VOL CN/V P1444 | P0443 | |
| PURG FLOW P0441 | P0441 | |
| A/F SEN1 | A/F SEN1(B1) P1278/P1279 | |
| A/F SEN1(B1) P1276 | P0130 | |
| A/F SEN1(B2) P1288/P1289 | ||
| A/F SEN1(B2) P1286 | P0150 | |
| HO2S2 | HO2S2(B1) P1146 | P0138 |
| HO2S2(B1) P1147 | P0137 | |
| HO2S2(B1) P0139 | P0139 | |
| HO2S2(B2) P1166 | P0158 | |
| HO2S2(B2) P1167 | P0157 | |
| HO2S2(B2) P0159 | P0159 | |
| (1) DTC P1456 does not apply to this model but appears in DTC Work Support Mode screens. | ||
| (1) | DTC P1456 does not apply to this model but appears in DTC Work Support Mode screens. |
DTC WORK SUPPORT MODE