MONITOR STRATEGY
| Related DTCs | P0010: VVT OCV range check |
|---|---|
| Required sensors/ components (Main) | VVT OCV |
| Required sensors/ components (Related) | |
| Frequency of operation | Continuous |
| Duration | 1 sec. |
| MIL operation | Immediate |
| Sequence of operation | None |
STRATEGY MONITORING
TYPICAL ENABLING CONDITIONS
| The monitor will run whenever the following DTCs are not present | None |
|---|---|
| Battery voltage | 11 to 13 V |
| Target duty ratio for the OCV | 70 % or less |
| Starter | OFF |
| Current cut status for the OCV | Not cut |
TYPICAL ENABLING CONDITIONS
TYPICAL MALFUNCTION THRESHOLDS
| Either of the following condition is set | |
|---|---|
| OCV duty ratio | 100 % (always ON) despite the target duty ratio is less than 70 % |
| OCV duty ratio when ECM supplies current to OCV | 3 % or less despite the ECM supplying the current to the OCV |
MALFUNCTION THRESHOLDS
COMPONENT OPERATING RANGE
| VVT OCV duty ratio | 3 to 100 % |
COMPONENT OPERATING RANGE
Scheme 228
VVT System: P0011 and P0012
| Related DTCs | P0011: Advanced camshaft timing |
|---|---|
| Related DTCs | P0012: Retarded camshaft timing |
| Required sensors/ components (Main) | VVT OCV and VVT actuator |
| Required sensors/ components (Related) | CKP, CMP and ECT sensors |
| Frequency of operation | Once per driving cycle |
| Duration | Within 10 sec. |
| MIL operation | P0011: Immediate |
| MIL operation | P0012: 2 driving cycles |
| Sequence of operation | None |
VVT SYSTEM
| The monitor will run whenever the following DTCs are not present | See PRE-CHECK |
|---|---|
| Battery voltage | 11 V or more |
| Engine RPM | 550 to 4,000 RPM |
| ECT | 75 to 100°C (167 to 212°F) |
TYPICAL ENABLING CONDITIONS
| Response of valve timing | 1 second /°CA or more |
|---|---|
| Difference between "target" and "actual" camshaft timing | More than 5°CA (Crankshaft Angle) |
| Camshaft timing change for 5 sec. | Within 5°CA |
MALFUNCTION THRESHOLDS
If the difference between "target" and "actual" camshaft timing is larger than the specified value, the ECM operates the VVT actuator. Then, the ECM monitors the camshaft timing change for 5 seconds.
VVT System: P0016
| Related DTCs | P0016: Camshaft timing misalignment at Idling |
|---|---|
| Required sensors/ components (Main) | VVT actuator |
| Required sensors/ components (Related) | CMP and CKP sensors |
| Frequency of operation | Once per driving cycles |
| Duration | Within 60 sec. |
| MIL operation | 2 driving cycles |
| Sequence of operation | None |
VVT SYSTEM (P0016)
| The monitor will run whenever the following DTCs are not present | See PRE-CHECK |
|---|---|
| Camshaft timing | Maximum retarded |
| Difference between "target" and "actual" camshaft timing | 5°CA or more within 0.5 sec. |
| "Actual" camshaft timing change per 360 °CA | 1.875 °CA or less |
| Engine RPM | 550 to 1,400 RPM |
TYPICAL ENABLING CONDITIONS
| Either of the following conditions is met | |
|---|---|
| "VVT learning value" | Less than 27°CA |
| "VVT learning value" | More than 49°CA |
MALFUNCTION THRESHOLDS
| Related DTCs | P0031: A/F sensor heater range check (Low Current) |
|---|---|
| Related DTCs | P0032: A/F sensor heater range check (High Current) |
| Required sensors/ components (Main) | A/F sensor heater |
| Required sensors/ components (Related) | |
| Frequency of operation | Continuous |
| Duration | 10 sec. |
| MIL operation | Immediate |
| Sequence of operation | None |
STRATEGY MONITORING
| The monitor will run whenever the following DTCs are not present | None |
|---|---|
| Battery voltage | Less than 10.5 V |
| Time after engine start | 10 sec. or more |
| P0031: A/F sensor heater duty ratio | 50 % or more |
TYPICAL ENABLING CONDITIONS
| A/F sensor heater current | 1.8 to 3.4 A at 20°C (68°F) |
COMPONENT OPERATING RANGE
MONITOR RESULT
The detailed information is described in "CHECKING MONITOR STATUS" (see PRE-CHECK ).
- TID (Test Identification) is assigned to each emission-related component.
- TLT (Test Limit Type): If TLT is 0, the component is malfunctioning when the test value is higher than the test limit. If TLT is 1, the component is malfunctioning when the test value is lower than the test limit.
- CID (Component Identification) is assigned to each test value.
- Unit Conversion is used to calculate the test value indicated on generic OBD scan tools.
TID $07: A/F Sensor Heater
| TLT | CID | Unit Conversion | Description of Test Value | Description of Test Limit |
|---|---|---|---|---|
| 1 | $01 | Multiply by 0.00017 (A) | Maximum A/F sensor heater current (bank 1) | Malfunction criterion |
A/F SENSOR HEATER TEST LIMIT DESCRIPTION
| Related DTCs | P0037: Rear HO2S heater range check (Low Current) |
|---|---|
| Related DTCs | P0038: Rear HO2S heater range check (High Current) |
| Required sensors/ components (Main) | HO2S heater |
| Frequency of operation | Continuous |
| Duration | P0037: 2 sec. |
| Duration | P0038: 0.3 sec. |
| MIL operation | Immediate |
| Sequence of operation | None |
STRATEGY MONITORING
| HO2S heater current | 0.4 to 1 A (at idle, warmed-up engine and +B: 11 to 14 V) |
COMPONENT OPERATING RANGE
The detailed information is described in "CHECKING MONITOR STATUS" (see PRE-CHECK ).
- TID (Test Identification) is assigned to each emission-related component.
- TLT (Test Limit Type): If TLT is 0, the component is malfunctioning when the test value is higher than the test limit. If TLT is 1, the component is malfunctioning when the test value is lower than the test limit.
- CID (Component Identification) is assigned to each test value.
- Unit Conversion is used to calculate the test value indicated on generic OBD scan tools.
TID $04: HO2S Heater
| TLT | CID | Unit Conversion | Description of Test Value | Description of Test Limit |
|---|---|---|---|---|
| 1 | $02 | Multiply by 0.000076 (A) | Maximum HO2S heater current (bank 1 sensor 2) | Malfunction criterion |
HO2S HEATER TEST LIMIT DESCRIPTION
| The monitor will run whenever the following DTCs are not present | None |
TYPICAL ENABLING CONDITIONS
| MAF meter voltage | Between 0.4 and 2.2 V |
COMPONENT OPERATING RANGE
Scheme 229
| Related DTCs | P0101: MAF meter rationality (Low voltage) |
|---|---|
| Related DTCs | P0101: MAF meter rationality (High voltage) |
| Required sensors/ components (Main) | MAF meter |
| Required sensors/ components (Related) | CKP sensor, ECT sensor, TP sensor |
| Frequency of operation | Continuous |
| Duration | 10 sec. |
| MIL operation | 2 driving cycles |
| Sequence of operation | None |
STRATEGY MONITORING
| The monitor will run whenever the following DTCs are not present | See PRE-CHECK |
TYPICAL ENABLING CONDITIONS
MAF Meter Rationality (Low voltage)
| Engine RPM | Less than 900 RPM |
|---|---|
| Idle | ON |
| ECT | 70°C (158°F) or more |
MAF METER RATIONALITY (LOW VOLTAGE)
MAF Meter Rationality (High voltage)
| RPM | 0 RPM or more |
|---|---|
| TP voltage | 0.1 V or more |
MAF METER RATIONALITY (HIGH VOLTAGE)
| MAF meter voltage | Less than 0.4 V |
MAF METER RATIONALITY (LOW VOLTAGE)
| MAF meter voltage | More than 2.2 V |
MAF METER RATIONALITY (HIGH VOLTAGE)
| The monitor will run whenever the following DTCs are not present | None |
TYPICAL ENABLING CONDITION
| IAT sensor resistance [IAT] | 98.5 ohm to 156 kohm [-40 to 140°C (-40 to 284°F)] |
COMPONENT OPERATING RANGE
Scheme 230
| The monitor will run whenever the following DTCs are not present | None |
TYPICAL ENABLING CONDITIONS
| ECT sensor resistance [ECT] | 79 ohm to 156 kohm [-40 to 140°C (-40 to 284°F)] |
COMPONENT OPERATING RANGE
Scheme 231
| Related DTCs | P0116: ECT sensor stuck at Low ECT |
|---|---|
| Related DTCs | P0116: ECT sensor stuck at High ECT |
| Required sensors/ components (Main) | ECT sensor |
| Required sensors/ components (Related) | CKP sensor, IAT sensor, MAF meter |
| Frequency of operation | Continuous |
| Duration | 250 sec. or more |
| MIL operation | 2 driving cycles: ECT sensor stuck at Low ECT |
| MIL operation | 6 driving cycles: ECT sensor stuck at High ECT |
| Sequence of operation | None |
STRATEGY MONITORING
| The monitor will run whenever the following DTCs are not present | P0100 to P0103: MAF meter |
TYPICAL ENABLING CONDITIONS
ECT Sensor Stuck at Low ECT
| Cumulative idle off period | 250 sec. or more |
|---|---|
| Speed increase by 30 km/h (19 mph) or more | 10 times or more |
| ECT | 35 to 60°C (95 to 140°F) |
| IAT | 6.7°C (20°F) or more |
ECT SENSOR STUCK AT LOW ECT
ECT Sensor Stuck at High ECT
| ECT | 60°C (140°F) or more |
|---|---|
| IAT | 6.7°C (20°F) or more |
| "Stop and go" (1) | Once or more |
| "Steady driving and stop" (2) | Once or more |
| (1) Vehicle is stopped for 20 seconds or more and accelerated to more than 70 km/h (44 mph) within 40 seconds. (2) Vehicle is driven by 65 km/h (40 mph) or more for 30 sec or more and the vehicle speed reaches 70 km/h (44 mph). The vehicle is decelerated from 65 km/h (40 mph) to 3 km/h (2 mph) or less within 35 seconds and stopped for 10 seconds. | |
| (1) | Vehicle is stopped for 20 seconds or more and accelerated to more than 70 km/h (44 mph) within 40 seconds. |
| (2) | Vehicle is driven by 65 km/h (40 mph) or more for 30 sec or more and the vehicle speed reaches 70 km/h (44 mph). The vehicle is decelerated from 65 km/h (40 mph) to 3 km/h (2 mph) or less within 35 seconds and stopped for 10 seconds. |
ECT SENSOR STUCK AT HIGH ECT
| ECT change | Less than 3°C (5.4°F) |
ECT SENSOR STUCK AT LOW ECT MALFUNCTION THRESHOLDS
| ECT change | 1°C (1.8°F) or less |
ECT SENSOR STUCK AT HIGH ECT MALFUNCTION THRESHOLDS
| ECT | Varies with actual ECT |
COMPONENT OPERATING RANGE
FAIL-SAFE
If the Electronic Throttle Control System (ETCS) has a malfunction, the ECM cuts off current to the throttle control motor. The throttle control valve returns to a predetermined opening angle (approximately 16°) by the force of the return spring. The ECM then adjusts the engine output by controlling the fuel injection (intermittent fuel-cut) and ignition timing in accordance with the accelerator pedal opening angle to enable the vehicle to continue at a minimal speed.
If the accelerator pedal is depressed firmly and slowly, the vehicle can be driven slowly.
If a "pass" condition is detected and then the ignition switch is turned OFF, the fail-safe operation will stop and the system will return to normal condition.
Scheme 232
| The monitor will run whenever the following DTCs are not present | None |
|---|---|
| Ignition switch and electronic throttle motor power | ON |
TYPICAL ENABLING CONDITIONS
| VTA1 voltage | 0.6 to 3.96 V |
|---|---|
| VTA2 voltage | 2.25 to 4.8 V |
COMPONENT OPERATING RANGE
Scheme 233
If the Electronic Throttle Control System (ETCS) has a malfunction, the ECM cuts off current to the throttle control motor. The throttle control valve returns to a predetermined opening angle (approximately 16°) by the force of the return spring. The ECM then adjusts the engine output by controlling the fuel injection (intermittent fuel-cut) and ignition timing in accordance with the accelerator pedal opening angle to enable the vehicle to continue at a minimal speed.
If the accelerator pedal is depressed firmly and slowly, the vehicle can be driven slowly.
If a "pass" condition is detected and then the ignition switch is turned OFF, the fail-safe operation will stop and the system will return to normal condition.
| Related DTCs | P0121: TP sensor rationality |
|---|---|
| Required sensors/ components (Main) | TP sensor |
| Required sensors/ components (Related) | |
| Frequency of operation | Continuous |
| Duration | 2 sec. |
| MIL operation | Immediate |
| Sequence of operation | None |
STRATEGY MONITORING
| The monitor will run whenever the following DTCs are not present | None |
|---|---|
| VTA2 voltage | 4.9 V or less |
TYPICAL ENABLING CONDITIONS
| Either of the following conditions is met | |
|---|---|
| Difference in voltage between "VTA1 - opener angle (sensor 1)" and "VTA2 x 0.8 opener angle (sensor 2)" | Less than 0.8 V or more than 1.6V |
MALFUNCTION THRESHOLDS
| The monitor will run whenever the following DTCs are not present | See PRE-CHECK |
|---|---|
| Fuel cut | OFF |
| Engine | Running |
TYPICAL ENABLING CONDITIONS
Scheme 234
| Related DTCs | P0128: Coolant thermostat |
|---|---|
| Required sensors/ components (Main) | Thermostat |
| Required sensors/ components (Related) | ECT sensor, IAT sensor, VSS |
| Frequency of operation | Once per drive cycle |
| Duration | 900 sec. |
| MIL operation | 2 drive cycles |
| Sequence of operation | None |
STRATEGY MONITORING
| The monitor will run whenever the following DTCs are not present | See PRE-CHECK |
|---|---|
| Battery voltage | 11 V or more |
| Engine start IAT | 10 to 35°C (14 to 95°F) |
| Engine start ECT | 10 to 35°C (14 to 95°F) |
| Difference between engine start ECT and engine start IAT | 15 to 7°C (-27 to 12.6°F) |
| Accumulated time with vehicle speed 80 mph (128 km/h) or more | 20 sec. or more |
TYPICAL ENABLING CONDITIONS
| Time that both of the following conditions are met | 5 sec. or more |
|---|---|
| Estimated ECT | 75°C (167°F) or more |
| Actual ECT | Less than 75°C (167°F) |
MALFUNCTION THRESHOLDS
The detailed information is described in "CHECKING MONITOR STATUS" (see PRE-CHECK ).
- TID (Test Identification) is assigned to each emission-related component.
- TLT (Test Limit Type): If TLT is 0, the component is malfunctioning when the test value is higher than the test limit. If TLT is 1, the component is malfunctioning when the test value is lower than the test limit.
- CID (Component Identification) is assigned to each test value.
- Unit Conversion is used to calculate the test value indicated on generic OBD scan tools.
TID $08: Thermostat
| TLT | CID | Unit Conversion | Description of Test Value | Description of Test Limit |
|---|---|---|---|---|
| 1 | $01 | Multiply by 0.625 and subtract 40 (°C) | ECT sensor output when estimated ECT reaches malfunction criterion | Malfunction criterion |
THERMOSTAT TEST LIMIT DESCRIPTION
All
| The monitor will run whenever the following DTCs are not present | See PRE-CHECK |
TYPICAL ENABLING CONDITIONS
Rear HO2S Voltage
| Engine | Running |
|---|---|
| Either of the following condition is set | |
| Cumulative time while rear HO2S heater is ON | 22 sec. |
| Rear HO2S voltage | 0.7 V or more |
TYPICAL ENABLING CONDITIONS
Rear HO2S Slow Response
| Rear HO2S voltage before the fuel cut | 0.2 V or more |
|---|---|
| Estimated catalyst temperature | 400 to 850 °C (752 to 1,562°F) |
| ECT | 70°C (158°F) or more |
| Fuel cut | Operating |
TYPICAL ENABLING CONDITIONS
Rear HO2S Low Voltage
| Vehicle speed | 1 mph (3 km/h) or more |
|---|---|
| Idle | OFF |
| Fuel cut | OFF (for 5 sec. or more) |
| Intake air amount | 0.32 g/rev or more |
| Time while rear HO2S heater is ON | 80 sec. or more |
TYPICAL ENABLING CONDITIONS
| One of the following conditions is set | |
|---|---|
| Number of Lean/Rich switching | None |
| Minimum rear HO2S voltage | 0.45 V or more |
| Maximum rear HO2S voltage | Less than 0.6 V |
| Switching time from Lean to Rich | 3 sec. or more |
| Switching time from Rich to Lean | 3 sec. or more |
MALFUNCTION THRESHOLDS
| Time until the rear HO2S voltage drops to below 0.2 V after fuel-cut starting | 7 sec. or more |
MALFUNCTION THRESHOLDS
| Percentage of time when the sensor voltage was smaller than 0.05 V | 60 % or more |
|---|---|
| Percentage of time when the sensor voltage was higher than 0.7 V | Within 20 % |
| Time when the sensor voltage was higher than 0.45 V | Within 20 sec. |
| Percentage of time when the sensor voltage was higher than 0.45 V | Less than 40 % |
MALFUNCTION THRESHOLDS
| Rear HO2S voltage | Varies between 0.1 and 0.9 V |
COMPONENT OPERATING RANGE
If the value is out of the standard value, the ECM interprets this as a malfunction and sets DTC.
| TEST ID | Description of TEST DATA | Conversion Factor | Unit | Standard Value |
|---|---|---|---|---|
| $07 | Minimum rear HO2S voltage | N/A | V | Below 0.45 V |
| $08 | Maximum rear HO2S voltage | N/A | V | 0.6 V or more |
| $31 | Time that rear HO2S output changes Lean to Rich | N/A | Sec. | Below 3 sec. |
| $32 | Time that rear HO2S output changes Rich to Lean | N/A | Sec. | Below 3 sec. |
REAR HO2S VOLTAGE TEST DATA
If the time is out of the standard value, the ECM interprets this as a malfunction and sets DTC.
| TEST ID | Description of TEST DATA | Conversion Factor | Unit | Standard Value |
|---|---|---|---|---|
| $37 | Time until rear HO2S voltage drops to below 0.2 V after fuel-cut starting | N/A | Sec. | Below 7 sec. |
REAR HO2S SLOW RESPONSE TEST DATA
If all the values ($81, $84, $85 and $87) are out of the standard values, the ECM interprets this as a malfunction and sets DTC.
| TEST ID | Description of TEST DATA | Conversion Factor | Unit | Standard Value |
|---|---|---|---|---|
| $81 | Percentage in monitor time where rear HO2S voltage is below 0.05 V | Multiply 0.3906 | % | Within 60 % |
| $84 | Percentage in monitor time where rear HO2S voltage is 0.7 V or more | Multiply 0.3906 | % | 20 % or more |
| $85 | Continuous time that rear HO2S voltage is 0.45 V or more | Multiply 0.2621 | Sec. | 20 sec. or more |
| $87 | Percentage in monitor time where rear HO2S voltage is 0.45 V or more | Multiply 0.3906 | % | 40 % or more |
REAR HO2S LOW VOLTAGE TEST DATA
Scheme 235
Scheme 236
- Connect the hand-held tester to the DLC3.
- Switch the hand-held tester from normal mode to check (test) mode (see «PRE-CHECK»(ref-180979-S17908463662005073000000) ).
- Start the engine and warm it up until the engine coolant temperature becomes more than 75°C.
- Drive the vehicle at 60 km/h (38 mph) or more for 40 seconds or more.
- Let the engine idle for 10 seconds or more.
- Perform steps d and e 12 times.
HINT
If a malfunction exists, the CHK ENG will be illuminated on the multi-information display during step (f).
Note. If the steps in this test are not followed exactly, detecting a malfunction will be difficult. If you do not have a hand-held tester, turn the ignition switch OFF after performing steps from c to f , then perform steps from c to f again.
| Related DTCs | P0171: Fuel trim lean |
|---|---|
| Related DTCs | P0172: Fuel trim rich |
| Required sensors / components (Main) | Fuel system |
| Required sensors / components (Related) | A/F sensor, MAF meter, CKP sensor |
| Frequency of operation | Continuous |
| Duration | 10 sec. |
| MIL operation | 2 driving cycles |
| Sequence of operation | None |
STRATEGY MONITORING
| The monitor will run whenever the following DTCs are not present | See PRE-CHECK |
|---|---|
| Battery voltage | 11 V or more |
| Fuel system | Closed Loop (for 13 sec. or more) |
| Warm-up condition to enable air fuel ratio learning control | The conditions are met |
| Either of the following conditions is met | |
| Engine RPM | Less than 1,100 RPM |
| Intake air amount per revolution | 0.22 g/rev or more |
TYPICAL ENABLING CONDITIONS
Fuel Trim Lean
| Smoothed fuel trim learning value | 38 % (1) or more at ECT: 80°C (176°F) |
|---|---|
| (1) The threshold value varies with the ECT. | |
| (1) | The threshold value varies with the ECT. |
MALFUNCTION THRESHOLDS
Fuel Trim Rich
| Smoothed fuel trim learning value | 32 % (1) or more at ECT: 80°C (176°F) |
|---|---|
| (1) The threshold value varies with the ECT. | |
| (1) | The threshold value varies with the ECT. |
MALFUNCTION THRESHOLDS
| The monitor will run whenever the following DTCs are not preset | See PRE-CHECK |
|---|---|
| Battery voltage | 8 V or more |
| VVT system | No active test by scan tool |
| Engine RPM | 400 RPM to 6,200 RPM |
| ECT | 10 °C (14 °F) or more |
| Either of (a) or (b) is met | (a) IAT is -10°C (14°F) or more |
| Either of (a) or (b) is met | (b) ECT is 75°C (167°F) or more |
| MAF | Varies with ECT and RPM |
| TP | Not changing rapidly (when engine RPM is more than 3,000 RPM) |
TYPICAL ENABLING CONDITIONS
| Misfire rate when engine start at cold | 1.5 % or more |
MALFUNCTION THRESHOLDS
Catalyst-damage-misfire (MIL flashes immediately)
| Either of the following conditions is set | |
|---|---|
| Misfire counts | 101 or more (1) per 200 revolutions (at intake air amount: 0.4 g/rev and engine RPM: 1,600 RPM) |
| Misfire counts of paired cylinder | 150 per 200 revolutions |
| (1) The threshold value varies with the intake air amount and the engine RPM. | |
| (1) | The threshold value varies with the intake air amount and the engine RPM. |
MALFUNCTION THRESHOLDS
Scheme 237
CONFIRMATION DRIVING PATTERN
- Connect the hand-held tester to the DLC3.
- Record the DTCs, freeze frame data and misfire counter data.
- Use the hand-held tester to set the check mode (see «PRE-CHECK»(ref-180979-S17908463662005073000000) ).
- Read the value on the misfire counter for each cylinder while idling the engine. If the value is displayed on the misfire counter, skip step (e).
- Drive the vehicle several times with the engine speed, load and its surrounding range shown with ENGINE SPD, CALC LOAD in the freeze frame data or MISFIRE RPM, MISFIRE LOAD in the DATA LIST. If you have no hand-held tester, turn the ignition switch OFF after the symptom is simulated once. Then repeat the simulation process again. HINT: In order to memorize the misfire DTC, it is necessary to drive with MISFIRE RPM, MISFIRE LOAD in the DATA LIST for the period of time in the chart below. Take care not to turn the ignition switch OFF. Turning the ignition switch OFF switches the diagnosis system from check mode to normal mode and all DTCs, freeze frame data and other data are erased. ENGINE SPEED TIME Engine Speed Time Idling 3 minutes 30 seconds or more 1,000 RPM 3 minutes or more 2,000 RPM 1 minute 30 seconds or more 3,000 RPM 1 minute or more
- Check if there is misfire or not by monitoring DTC and the freeze frame data. Record the data.
- Turn the ignition switch OFF and wait for at least 5 seconds.
| The monitor will run whenever the following DTCs are not preset | None |
TYPICAL ENABLING CONDITIONS
Knock Sensor Rationality
| Battery voltage | 10 V or more |
|---|---|
| Idle | OFF |
| Time after engine start | 5 sec. or more |
| ECT | 60°C (140°F) or more |
| Spark cut | OFF |
| Intake air amount | 0.3 g/rev |
| RPM | 3,000 to 5,000 RPM |
TYPICAL ENABLING CONDITIONS
Knock Sensor Range Check
| Battery voltage | 10 V or more |
|---|---|
| Time after engine start | 5 sec. or more |
TYPICAL ENABLING CONDITIONS
Knock Sensor Rationality (P0325)
| Knock sensor signal | Signal level is low |
MALFUNCTION THRESHOLDS
Knock Sensor Range Check (Fluttering) (P0325)
| Knock sensor signal | Less than 0.5 V or more than 4.5 V |
MALFUNCTION THRESHOLDS
Knock Sensor Range Check (Low voltage) (P0327)
| Knock sensor signal | Less than 0.5 V |
MALFUNCTION THRESHOLDS
Knock Sensor Range Check (High voltage) (P0328)
| Knock sensor signal | More than 4.5 V |
MALFUNCTION THRESHOLDS
Scheme 238
CKP Sensor Range Check during Cracking
| Starter | ON |
|---|---|
| Minimal battery voltage while starter ON | Less than 11 V |
TYPICAL ENABLING CONDITIONS
CKP Sensor Range Check during Engine Running
| Engine RPM | 600 RPM or more |
|---|---|
| Starter | OFF |
| Time after starter ON to OFF | 3 sec. or more |
TYPICAL ENABLING CONDITIONS
| CKP signal | CKP sensor voltage fluctuates when the crankshaft rotates 34 CKP signals per 1 revolution crankshaft |
COMPONENT OPERATING RANGE
Scheme 239
| The monitor will run whenever the following DTCs are not present | None |
TYPICAL ENABLING CONDITIONS
CMP Sensor Range Check (P0340)
| Starter | ON |
|---|---|
| Minimal battery voltage while starter ON | Less than 11 V |
TYPICAL ENABLING CONDITIONS
CMP/CKP Misalignment and CMP Sensor Malfunction (P0340)
| Engine RPM | 600 RPM or more |
|---|---|
| Starter | OFF |
TYPICAL ENABLING CONDITIONS
| CMP signal | No signal |
MALFUNCTION THRESHOLDS
CMP/CKP Sensor Malfunction (P0340)
| CMP and CKP phase | Misaligned |
MALFUNCTION THRESHOLDS
CMP Sensor Malfunction (P0341)
| CMP and CKP phase | Misaligned |
|---|---|
| CMP signal per 2 revolutions crankshaft | 12 CMP signals or more |
MALFUNCTION THRESHOLDS
Scheme 240
| The monitor will run whenever the following DTCs are not present | None |
|---|---|
| Starter OFF or Engine RPM | 1,500 RPM or more |
TYPICAL ENABLING CONDITIONS
| Ignition signal fail count | More than 2 |
|---|---|
| Ignition fail count is as follows | When IGF should have returned despite sending IGT |
MALFUNCTION THRESHOLDS
| IGF signal | Igniter outputs IGF signal when it receives IGT signal from ECM |
COMPONENT OPERATING RANGE
Scheme 241
| Related DTCs | P0420: Catalyst deterioration |
|---|---|
| Required sensors / components (Main) | Catalyst |
| Required sensors / components (Related) | AF sensor, Rear HO2S, IAT sensor, MAF meter, CKP sensor, ECT sensor |
| Frequency of operation | Once per driving cycle |
| Duration | 150 sec. (30 sec. x 5) |
| MIL operation | 2 driving cycles |
| Sequence of operation | None |
MONITOR STRATEGY
| The monitor will run whenever the following DTCs are not present | See PRE-CHECK |
|---|---|
| Accumulated time that the following conditions are met | 30 sec. |
| Battery voltage | 11 V or more |
| IAT | 10 °C (14°F) or more |
| Idle | OFF |
| MAF | 8 to 35 g/sec. |
| RPM | Less than 4,500 RPM |
| ECT | 75° C (167°F) or more |
| Estimated catalyst temperature | Up stream catalyst: 550 to 900°C (1,022 to 1,652°F) |
| Estimated catalyst temperature | Down stream catalyst: 550 to 900°C (1,022 to 1,652°F) |
| Fuel system status | Closed Loop |
| AF sensor voltage | 3 to 3.5 V |
ENGINE ENABLING CONDITION
Scheme 242
The detailed information is described in "CHECKING MONITOR STATUS" (see PRE-CHECK ).
- TID (Test Identification) is assigned to each emission-related component.
- TLT (Test Limit Type): If TLT is 0, the component is malfunctioning when the test value is higher than the test limit. If TLT is 1, the component is malfunctioning when the test value is lower than the test limit.
- CID (Component Identification) is assigned to each test value.
- Unit Conversion is used to calculate the test value indicated on generic OBD scan tools.
Scheme 243
Scheme 244
- Connect the hand-held tester or OBD II scan tool to the DLC3.
- Start the engine and warm it up with all the accessories switched OFF until the engine coolant temperature is stable.
- Race the engine at 2,500 to 3,000 RPM for about 3 minutes.
- When racing the engine at 3,000 RPM for 2 seconds and 2,000 RPM for 2 seconds alternately, check the waveform of the heated oxygen sensor (bank 1 sensor 2).
| Related DTCs | P0441: EVAP VSV stuck closed |
|---|---|
| Related DTCs | P0441: EVAP VSV stuck open |
| Related DTCs | P0442: EVAP leak (0.04 inch) |
| Related DTCs | P0446: CCV stuck closed |
| Related DTCs | P0446: CCV stuck open |
| Related DTCs | P0455: EVAP gross leak |
| Related DTCs | P0456: EVAP leak (0.02 inch) |
| Related DTCs | P2418: Bypass VSV malfunction |
| Required sensors / components | EVAP VSV, Bypass VSV, CCV, EVAP canister, EVAP hose, Fuel cap, Fuel tank and Vapor pressure sensor |
| Frequency of operation | Once per driving cycle |
| Duration | Within 60 sec. |
| MIL operation | 2 driving cycles |
| Sequence of operation | None |
MONITOR STRATEGY
| The monitor will run whenever the following DTCs are not present | See PRE-CHECK |
|---|---|
| Battery voltage | 11 V |
| Altitude | 7,870 ft. (2,400 m) or less |
| IAT | 10 °C (50°F) or more |
| IAT at engine start | 10 to 32°C (50 to 90°F) |
| ECT at engine start | 10 to 32°C (50 to 90°F) |
| Difference between engine start IAT and engine start ECT | 7 to 11.1°C (-13 to 20°F) |
| Purge VSV, CCV and bypass VSV | No active test by scan tool |
| Time after engine start | 5 sec. to 50 min. |
| Vehicle speed | Minimal change |
| Fuel slosh | No sloshing, i.e. fairly smooth road |
| MAF | No great change |
| FTP change | Minimal change |
| FTP | Less than -19.5 mmHg (-2.6 kPa) |
| Fuel tank level | Less than 90 % |
| Number of "negative pressure introduction" in this driving cycles | Within 8 times |
ENGINE ENABLING CONDITION
EVAP VSV Stuck Closed (P0441)
| FTP change during "negative pressure introduction" | Less than 7 mmHg (0.933 kPa) |
EVAP VSV STUCK CLOSED
EVAP VSV Stuck Open (P0441)
| FTP 14 sec. after leak check | 28 mmHg (-3.73 kPa) |
EVAP VSV STUCK OPEN
CCV Stuck Closed (P0446)
| FTP change when CCV is commanded to open after EVAP leak check | 4.5 to 4.5 mmHg (-0.6 to 0.6 kPa) |
CCV STUCK CLOSED
CCV Stuck Open (P0446)
| EVAP VSV stuck closed | Detected |
CCV STUCK OPEN
Bypass VSV Malfunction (P2418)
| Either of the following conditions is met | |
|---|---|
| EVAP VSV stuck closed | Detected |
| FTP change when bypass VSV is commanded to close after EVAP leak check | 4.5 to 4.5 mmHg (-0.6 to 0.6 kPa) |
VSV MALFUNCTION
EVAP Leak (0.04 inch) (P0442)
| All of the following conditions are met | |
|---|---|
| FTP increase for 5 sec. from -20 mmHg (-2.67 kPa) [740 mmHg] | More than 1.5 mmHg (0.2 kPa) |
| FTP increase for 5 sec. from -15 mmHg (-2 kPa) [745 mmHg] | More than 1.5 mmHg (0.2 kPa) |
| Minimum FTP after "negative pressure introduction" | Less than -18 mmHg (-2.4 kPa) |
EVAP LEAK
EVAP Leak (0.02 inch) (P0456)
| All of the following conditions are met | |
|---|---|
| FTP increase for 5 sec. from -20 mmHg (-2.67 kPa) [740 mmHg] | More than 0.5 mmHg (0.67 kPa) |
| FTP increase for 5 sec. from -15 mmHg (-2 kPa) [745 mmHg] | More than 0.5 mmHg (0.67 kPa) |
EVAP LEAK
EVAP Gross Leak (P0455)
| All of the following conditions are met | |
|---|---|
| FTP increase for 5 sec from -15 mmHg (-2 kPa) [745 mmHg] | More than 1.5 mmHg (0.2 kPa) |
EVAP GROSS LEAK
The detailed information is described in "CHECKING MONITOR STATUS" (see PRE-CHECK ).
- TID (Test Identification) is assigned to each emission-related component.
- TLT (Test Limit Type): If TLT is 0, the component is malfunctioning when the test value is higher than the test limit. If TLT is 1, the component is malfunctioning when the test value is lower than the test limit.
- CID (Component Identification) is assigned to each test value.
- Unit Conversion is used to calculate the test value indicated on generic OBD scan tools.
TID $02: EVAP - Vacuum Monitor
| TLT | CID | Unit Conversion | Description of Test Value | Description of Test Limit |
|---|---|---|---|---|
| 1 | $01 | Multiply by 0.0916 (mmHg) | Test value of EVAP VSV: Determined by fuel tank pressure change during vacuum introduction | Malfunction criterion |
| 1 | $02 | Multiply by 0.0458 and subtract 2.93 (mmHg) | Test value of bypass VSV (pressure switching valve): Determined by fuel tank pressure change at switching over bypass VSV | Malfunction criterion |
| 0 | $03 | Multiply by 0.0458 (mmHg) | Test value of 0.04 inch leak: Determined by fuel tank pressure change | Malfunction criterion |
| 0 | $04 | Multiply by 0.0458 (mmHg) | Test value of 0.02 inch leak: Determined by fuel tank pressure change | Malfunction criterion |
| 1 | $05 | Multiply by 0.0458 and subtract 2.93 (mmHg) | Test value of CCV: Determined by fuel tank pressure change at switching over CCV | Malfunction criterion |
EVAP - VACUUM MONITOR
Scheme 245
| Related DTCs | P0441: EVAP VSV stuck open |
|---|---|
| Related DTCs | P0441: EVAP VSV stuck close |
| Related DTCs | P0442: EVAP leak (0.04 inch) |
| Related DTCs | P0446: CCV stuck open |
| Related DTCs | P0446: CCV stuck close |
| Related DTCs | P0455: EVAP gross leak |
| Related DTCs | P0456: EVAP leak (0.02 inch) |
| Related DTCs | P2418: Bypass VSV malfunction |
| Required sensors / components (Main) | Bypass VSV, CCV, EVAP canister, EVAP hose, Fuel cap, Fuel tank and EVAP VSV |
| Required sensors / components (Related) | ECT, FTP, IAT, MAF and VSS (Vehicle Speed Sensor) |
| Frequency of operation | Once per driving cycle |
| Duration | Within 60 sec. |
| MIL operation | 2 driving cycles |
| Sequence of operation | None |
MONITOR STRATEGY
| The monitor will run whenever the following DTCs are not present | See PRE-CHECK |
|---|---|
| Battery voltage | 11 V |
| Altitude | 7,870 ft. (2,400 m) or less |
| IAT | 10 °C (50°F) or more |
| IAT at engine start | 10 to 32°C (50 to 90°F) |
| ECT at engine start | 10 to 32°C (50 to 90°F) |
| Difference between engine start IAT and engine start ECT | 7 to 11.1°C (-13 to 20°F) |
| Purge VSV, CCV and bypass VSV | No active test by scan tool |
| Time after engine start | 5 sec. to 50 min. |
| Vehicle speed | Minimal change |
| Fuel slosh | No sloshing, i.e. fairly smooth road |
| MAF | No great change |
| FTP change | Minimal change |
| FTP | Less than -19.5 mmHg (-2.6 kPa) [Less than 740.5 mmHg] |
ENGINE ENABLING CONDITION
| Fuel tank level | Less than 90 % |
|---|---|
| Number of "negative pressure introduction" in this driving cycles | Within 8 times |
FUEL TANK LEVEL
| FTP change during "negative pressure introduction" | Less than 7 mmHg (0.933 kPa) |
EVAP VSV STUCK CLOSED
| FTP 14 sec. after leak check | 28 mmHg (-3.73 kPa) |
EVAP VSV STUCK OPEN
| FTP change when CCV is commanded to open after EVAP leak check | 4.5 to 4.5 mmHg (-0.6 to 0.6 kPa) |
CCV STUCK CLOSED
| EVAP VSV stuck closed | Detected |
CCV STUCK OPEN
| Either of the following conditions is met | |
|---|---|
| EVAP VSV stuck closed | Detected |
| FTP change when bypass VSV is commanded to close after EVAP leak check | 4.5 to 4.5 mmHg (-0.6 to 0.6 kPa) |
BYPASS VSV MALFUNCTION
| All of the following conditions are met | |
|---|---|
| FTP increase for 5 sec. from -20 mmHg (-2.67 kPa) [740 mmHg] | More than 1.5 mmHg (0.2 kPa) |
| FTP increase for 5 sec. from -15 mmHg (-2 kPa) [745 mmHg] | More than 1.5 mmHg (0.2 kPa) |
| Minimum FTP after "negative pressure introduction" | Less than -18 mmHg (-2.4 kPa) |
EVAP LEAK
| All of the following conditions are met | |
|---|---|
| FTP increase for 5 sec. from -20 mmHg (-2.67 kPa) [740 mmHg] | More than 0.5 mmHg (0.67 kPa) |
| FTP increase for 5 sec. from -15 mmHg (-2 kPa) [745 mmHg] | More than 0.5 mmHg (0.67 kPa) |
EVAP LEAK
| All of the following conditions are met | |
|---|---|
| FTP increase for 5 sec from -15 mmHg (-2 kPa) [745 mmHg] | More than 1.5 mmHg (0.2 kPa) |
EVAP GROSS LEAK
The detailed information is described in "CHECKING MONITOR STATUS" (see PRE-CHECK ).
- TID (Test Identification) is assigned to each emission-related component.
- TLT (Test Limit Type): If TLT is 0, the component is malfunctioning when the test value is higher than the test limit. If TLT is 1, the component is malfunctioning when the test value is lower than the test limit.
- CID (Component Identification) is assigned to each test value.
- Unit Conversion is used to calculate the test value indicated on generic OBD scan tools.
| TLT | CID | Unit Conversion | Description of Test Value | Description of Test Limit |
|---|---|---|---|---|
| 1 | $01 | Multiply by 0.0916 (mmHg) | Test value of EVAP VSV: Determined by fuel tank pressure change during vacuum introduction | Malfunction criterion |
| 1 | $02 | Multiply by 0.0458 and subtract 2.93 (mmHg) | Test value of bypass VSV (pressure switching valve): Determined by fuel tank pressure change at switching over bypass VSV | Malfunction criterion |
| 0 | $03 | Multiply by 0.0458 (mmHg) | Test value of 0.04 inch leak: Determined by fuel tank pressure change | Malfunction criterion |
| 0 | $04 | Multiply by 0.0458 (mmHg) | Test value of 0.02 inch leak: Determined by fuel tank pressure change | Malfunction criterion |
| 1 | $05 | Multiply by 0.0458 and subtract 2.93 (mmHg) | Test value of CCV: Determined by fuel tank pressure change at switching over CCV | Malfunction criterion |
EVAP - VACUUM MONITOR
| Related DTCs | P0451: FTP sensor noise |
|---|---|
| Related DTCs | P0451: FTP sensor stuck |
| Related DTCs | P0452: FTP sensor range check (Low voltage) |
| Related DTCs | P0453: FTP sensor range check (High voltage) |
| Required sensors / components (Main) | FTP sensor |
| Required sensors / components (Related) | ECT sensor, IAT sensor |
| Frequency of operation | Once per driving cycle |
| Duration | 7 sec.: FTP sensor range check |
| Duration | 10 sec.: FTP sensor noise (P0451) |
| Duration | 5 min.: FTP sensor stuck |
| MIL operation | 2 driving cycles |
| Sequence of operation | None |
MONITOR STRATEGY
| The monitor will run whenever the following DTCs are not present | None |
ENGINE ENABLING CONDITION
FTP Sensor Range Check (P0452: Low voltage) (P0453: High voltage)
| ECT at engine start | 10 to 35°C (50 to 95°F) |
|---|---|
| IAT at engine start | 10 to 35°C (50 to 95°F) |
| Difference between engine start ECT and engine start IAT | 12°C (21.6°F) or less |
| Engine condition | Running |
FTP SENSOR RANGE CHECK
FTP Sensor Stuck (P0451)
| FTP change for 5 min | Less than 0.135 mmHg (0.018 kPa) |
FTP SENSOR STUCK
FTP Sensor Range Check (Low voltage) (P0452)
| FTP | Less than -30 mmHg (-4 kPa) [Less than 730 mmHg] |
FTP SENSOR RANGE CHECK
FTP Sensor Range Check (High voltage)
| FTP | 15 mmHg (2 kPa) or more [775 mmHg or more] |
FTP SENSOR RANGE (HIGH VOLTAGE)
| FTP | 26 to 11 mmHg (-3.5 to 1.5 kPa) [734 to 771 mmHg] |
COMPONENT OPERATING RANGE
| Related DTCs | P0500: VSS circuit |
|---|---|
| Required sensors / components (Main) | VSS, Combination meter, ABS ECU |
| Required sensors / components (Related) | PNP switch, ECT sensor |
| Frequency of operation | Continuous |
| Duration | 1 sec.: Automatic transmission |
| Duration | 8 sec.: Manual transmission |
| MIL operation | Immediate: Automatic transmission 2 driving cycles: Manual transmission |
| Sequence of operation | None |
MONITOR STRATEGY
| The monitor will run whenever the following DTCs are not present | None |
ENGINE ENABLING CONDITION
Automatic Transmission
| Countergear speed | 300 RPM or more |
|---|---|
| Engine condition | Running |
| Either of the following conditions A and B is met | |
| Conditions A | |
| Time after PNP switch ON to OFF | 2 sec. or more |
| ECT and ECT sensor | ECT is 20°C (68°F) or more and ECT sensor does not malfunction (P0115 or P0116) |
| Conditions B | |
| Time after PNP switch ON to OFF | 30 sec. or more |
| ECT and ECT sensor | ECT is less than 20°C (68°F) or ECT sensor malfunction (P0115 or P0116) |
| Time after ignition switch ON | 3 sec. or more |
AUTOMATIC TRANSMISSION
Manual Transmission
| ECT | 70°C (158°F) or more |
|---|---|
| Engine RPM | 2,000 to 5,000 RPM |
| Intake air amount per revolution | 0.55 g/rev or more |
MANUAL TRANSMISSION
| VSS signal | No pulse input |
MALFUNCTION THRESHOLDS
Scheme 246
| Related DTCs | P0505: IAC functional check |
|---|---|
| Related DTCs | P0505: IAC range check |
| Required sensors / components (Main) | ETCS |
| Required sensors / components (Related) | CKP sensor, ECT sensor and VSS |
| Frequency of operation | Continuous |
| Duration | 10 min: IAC functional check 10 sec.: IAC range check |
| MIL operation | 2 driving cycles: IAC functional check Immediate: IAC range check |
| Sequence of operation | None |
MONITOR STRATEGY
| The monitor will run whenever the following DTCs are not present | See PRE-CHECK |
TYPICAL ENABLING CONDITIONS
IAC Functional Check
| Battery voltage | 11 V or more |
|---|---|
| ECT | 75°C (167°F) |
| Idle | ON |
| Vehicle speed | Within 2 mph (3 km/h) |
| Engine RPM | 400 RPM or more |
IAC FUNCTION CHECK
IAC Range Check
| IAC output duty ratio | 10 to 90% |
|---|---|
| Battery voltage | 10V |
IAC RANGE CHECK
| Both of the conditions 1 and 2 are met | |
|---|---|
| 1. Either of the conditions A or B is met | |
| Condition A | Both of the following conditions (a) and (b) are met |
| (a) Engine RPM - Target engine RPM | Less than -100 RPM |
| (b) IAC flow rate learning value | 2.78 L/sec. (A/C: ON) |
| (b) IAC flow rate learning value | 2.08 L/sec. (A/C: OFF) |
| Condition B | Both of the following conditions (c) and (d) are met |
| (c) Engine RPM - Target engine RPM | More than 150 RPM (shift position: N and A/C: ON) |
| (c) Engine RPM - Target engine RPM | More than 200 RPM (shift position: D and A/C: OFF) |
| (d) IAC flow rate learning value | 0.55 L/sec. (shift position: N and A/C: ON) -0.17 L/sec. (shift position: D and A/C: OFF) |
| 2. Either of the conditions C or D is met | |
| Condition C | |
| IAC flow rate learning value for 0.5 sec. | Below 1.3 L/sec. or above 4.51 L/sec. |
| Condition D | Both of the following conditions (e) and (f) are met |
| (e) Number of the following condition is met | 5 times |
| (f) IAC flow rate learning value | GE "Value when fail is judged first" +1.55 L/sec. lE "Value when fail is judged first" -2.4 L/sec. |
IAC FUNCTIONS CHECK
| IAC duty ratio change | None |
IAC RANGE CHECK
| Related DTCs | P0560: ECM system voltage |
|---|---|
| Required sensors / components (Main) | ECM |
| Required sensors / components (Related) | |
| Frequency of operation | Continuous |
| Duration | 3 sec. |
| MIL operation | Immediate (MIL will illuminate after the next engine start) |
| Sequence of operation | None |
MONITOR STRATEGY
| The monitor will run whenever the following DTCs are not present | None |
VOLTAGE ENABLING CONDITION
| ECM power source | Less than 3.5 V |
MALFUNCTION THRESHOLDS
Scheme 247
| Related DTCs | P0604: RAM error |
|---|---|
| Related DTCs | P0606: CPU malfunction |
| Related DTCs | P0657: ETCS power supply |
| Required sensors / components (Main) | ECM |
| Required sensors / components (Related) | |
| Frequency of operation | Continuous |
| Duration | Within 1 sec. |
| MIL operation | Immediate |
| Sequence of operation | None |
MONITOR STRATEGY
| The monitor will run whenever the following DTCs are not present | None |
ENABLING CONDITION
RAM Error (P0604)
| Difference between main and sub CPU output | Larger than the specified range |
RAM ERROR
CPU Malfunction (P0606)
| Either of the following condition is met | |
|---|---|
| Difference between TP of main CPU and TP of sub CPU | 0.3 V or more |
| Difference between APP of main CPU and APP of sub CPU | 0.3 V or more |
CPU MALFUNCTION
ETCS Power Supply (P0657)
| ETCS power supply when ignition switch OFF to ON | 7 V or more |
ETCS POWER SUPPLY
| Related DTCs | P0617: Starter signal |
|---|---|
| Required sensors / components (Main) | Starter relay and PNP switch |
| Required sensors / components (Related) | CKP sensor and vehicle speed sensor |
| Frequency of operation | Continuous |
| Duration | 20 sec. |
| MIL operation | Immediate |
| Sequence of operation | None |
MONITOR STRATEGY
| The monitor will run whenever the following DTCs are not present | None |
|---|---|
| Battery voltage | 10.5 V or more |
| Vehicle speed | 12 mph (20 km/h) or more |
| Engine RPM | 1,000 RPM or more |
ENABLING CONDITION
| Starter signal | ON |
MALFUNCTION THRESHOLDS
Scheme 248
Hand-held tester
- Connect hand-held tester and check STA signal. PREPARATION: Connect the hand-held tester to the DLC3. Turn ON the ignition switch. Push the hand-held tester main switch. On the hand-held tester, enter the following menus: DIAGNOSIS / ENHANCED OBD II / DATA LIST / ALL / STARTER SIG. CHECK: Read the STA signal on the hand-held tester while the starter operates. OK: STA SIGNAL Ignition Switch Position ON START STA signal OFF ON OK : Replace ECM (see «COMPONENTS»(ref-239091-S09451227742006072600000) ). NG : Go to next step.
- Check PNP switch (A/T) (see «DTC P0705: TRANSMISSION RANGE SENSOR CIRCUIT MALFUNCTION (PRNDL INPUT)»(ref-180979-S27990364212005073000000) ) or clutch start switch (M/T) (see CHECK CLUTCH START SYSTEM under «INSPECTION»(ref-181264-S05994621232005073100000) in CLUTCH article). NG : Replace PNP switch or clutch start switch. OK : Go to next step.
- Connect hand-held tester and check STA signal. PREPARATION: Connect the hand-held tester to the DLC3. Turn ON the ignition switch. Push the hand-held tester main switch. On the hand-held tester, enter the following menus: DIAGNOSIS / ENHANCED OBD II / DATA LIST / ALL / STARTER SIG. CHECK: Read the STA signal on the hand-held tester while the starter operates. OK: STA SIGNAL Ignition Switch Position ON START STA signal OFF ON OK : System OK. NG : Go to next step.
- Check ignition switch (see «INSPECTION»(ref-180993-S06284174772005073000000) in IGNITION SWITCH & KEY UNLOCK WARNING SYSTEM ARTICLE). NG : Replace ignition switch. OK : Go to next step.
- Connect hand-held tester and check STA signal. PREPARATION: Connect the hand-held tester to the DLC3. Turn ON the ignition switch. Push the hand-held tester main switch ON. On the hand-held tester, enter the following menus: DIAGNOSIS / ENHANCED OBD II / DATA LIST / ALL / STARTER SIG. CHECK: Read the STA signal on the hand-held tester while the starter operates. OK: STA SIGNAL Ignition Switch Position ON START STA signal OFF ON OK : System OK. NG : Repair or replace harness and connector.
Scheme 249
Scheme 250
Scheme 251
- Check voltage between terminal STA of ECM connector and body ground. PREPARATION: Remove the glove compartment (see «COMPONENTS»(ref-239091-S09451227742006072600000) ). Turn the ignition switch ON. CHECK: Measure the voltage between terminal STA of the ECM connector and the body ground, during the engine cranking (ignition switch START position) and does not engine cranking (ignition switch position ON). OK: Voltage: 6 V or more (ignition switch START position) 0 V (ignition switch ON position) OK : Replace ECM (see «COMPONENTS»(ref-239091-S09451227742006072600000) ). NG : Go to next step.
- Check PNP switch (A/T) (see «DTC P0705: TRANSMISSION RANGE SENSOR CIRCUIT MALFUNCTION (PRNDL INPUT)»(ref-180979-S27990364212005073000000) ) or clutch start switch (M/T) (see CHECK CLUTCH START SYSTEM under «INSPECTION»(ref-181264-S05994621232005073100000) in CLUTCH article). NG : Replace PNP switch or clutch start switch. OK : Go to next step.
- Check voltage between terminal STA of ECM connector and body ground. PREPARATION: Remove the glove compartment (see «COMPONENTS»(ref-239091-S09451227742006072600000) ). Turn the ignition switch ON. CHECK: Measure the voltage between terminal STA of the ECM connector and the body ground, during the engine cranking (ignition switch START position) and does not engine cranking (ignition switch position ON). OK: Voltage: 6 V or more (ignition switch START position) 0 V (ignition switch ON position) OK : Replace ECM (see «COMPONENTS»(ref-239091-S09451227742006072600000) ). NG : Go to next step.
- Check ignition switch (see «INSPECTION»(ref-180993-S06284174772005073000000) in IGNITION SWITCH & KEY UNLOCK WARNING SYSTEM ARTICLE). NG : Replace ignition switch. OK : Go to next step.
- Check voltage between terminal STA of ECM connector and body ground. PREPARATION: Remove the glove compartment (see «COMPONENTS»(ref-239091-S09451227742006072600000) ). Turn the ignition switch ON. CHECK: Measure the voltage between terminal STA of the ECM connector and the body ground, during the engine cranking (ignition switch START position) and does not engine cranking (ignition switch position ON). OK: Voltage: 6 V or more (ignition switch START position) 0 V (ignition switch ON position) OK : Replace ECM (see «COMPONENTS»(ref-239091-S09451227742006072600000) ). NG : Go to next step.
- Check for open in wire harness between ECM and PNP switch (A/T) (see «DTC P0705: TRANSMISSION RANGE SENSOR CIRCUIT MALFUNCTION (PRNDL INPUT)»(ref-180979-S27990364212005073000000) ) or clutch start switch (M/T) (see CHECK CLUTCH START SYSTEM under «INSPECTION»(ref-181264-S05994621232005073100000) in CLUTCH article). NG : Repair or replace harness and connector. OK : Replace ECM (see «COMPONENTS»(ref-239091-S09451227742006072600000) ).
If the ETCS has a malfunction, the ECM cuts off current to the throttle actuator. The throttle control valve returns to a predetermined opening angle (approximately 16°) by the force of the return spring. The ECM then adjusts the engine output by controlling the fuel injection (intermittent fuel-cut) and ignition timing in accordance with the accelerator pedal opening angle to enable the vehicle to continue at a minimal speed. If the accelerator pedal is depressed firmly and slowly, the vehicle can be driven slowly.
If a "pass" condition is detected and then the ignition switch is turned OFF, the fail-safe operation will stop and the system will return to normal condition.
| Related DTCs | P2102: Throttle actuator current (low current) |
|---|---|
| Related DTCs | P2103: Throttle actuator current (high current) |
| Required sensors / components (Main) | Throttle actuator |
| Required sensors / components (Related) | |
| Frequency of operation | Continuous |
| Duration | 2 sec. |
| MIL operation | Immediate |
| Sequence of operation | None |
MONITOR STRATEGY
| The monitor will run whenever the following DTCs are not present | None |
ENABLING CONDITION
If the ETCS has a malfunction, the ECM cuts off current to the throttle control actuator. The throttle control valve returns to a predetermined opening angle (approximately 16°) by the force of the return spring. The ECM then adjusts the engine output by controlling the fuel injection (intermittent fuel-cut) and ignition timing in accordance with the accelerator pedal opening angle to enable the vehicle to continue at a minimal speed. If the accelerator pedal is depressed firmly and slowly, the vehicle can be driven slowly.
If a "pass" condition is detected and then the ignition switch is turned OFF, the fail-safe operation will stop and the system will return to normal condition.
| Related DTCs | P2111: Throttle actuator stuck open |
|---|---|
| Related DTCs | P2112: Throttle actuator stuck close |
| Required sensors / components (Main) | Throttle actuator |
| Required sensors / components (Related) | |
| Frequency of operation | Continuous |
| Duration | 0.5 sec. |
| MIL operation | Immediate |
| Sequence of operation | None |
MONITOR STRATEGY
| The monitor will run whenever the following DTCs are not present | None |
ENABLING CONDITIONS
Throttle actuator stuck open (P2111)
| System guard | ON |
|---|---|
| Throttle actuator current | 2 A or more |
| Throttle actuator close duty ratio | 80 % or more |
THROTTLE ACTUATOR STUCK OPEN
Throttle actuator stuck close (P2112)
| System guard | ON |
|---|---|
| Throttle actuator current | 2 A or more |
| Throttle actuator open duty ratio | 80 % or more |
THROTTLE ACTUATOR STUCK CLOSED
| TP sensor voltage change | Less than 0.1 A |
MALFUNCTION THRESHOLD
If the ETCS has a malfunction, the ECM cuts off current to the throttle actuator. The throttle control valve returns to a predetermined opening angle (approximately 16°) by the force of the return spring. The ECM then adjusts the engine output by controlling the fuel injection (intermittent fuel-cut) and ignition timing in accordance with the accelerator pedal opening angle to enable the vehicle to continue at a minimal speed. If the accelerator pedal is depressed firmly and slowly, the vehicle can be driven slowly.
If a "pass" condition is detected and the ignition switch is turned OFF, the fail-safe operation will stop and the system will return to normal.
| Related DTCs | P2118: Throttle actuator power supply |
|---|---|
| Required sensors / components (Main) | Throttle actuator, Throttle valve, ETCS fuse |
| Required sensors / components (Related) | |
| Frequency of operation | Continuous |
| Duration | 0.8 sec. |
| MIL operation | Immediate |
| Sequence of operation | None |
MONITOR STRATEGY
| The monitor will run whenever the following DTCs are not present | None |
|---|---|
| Throttle actuator power | ON |
| Battery voltage | More than 8 V |
ENABLING CONDITION
| Throttle actuator power supply voltage | Less than 4 V |
MALFUNCTION THRESHOLDS
| Throttle actuator power supply voltage | 9 to 14 V |
COMPONENT OPERATING RANGE
Scheme 252
If the ETCS has a malfunction, the ECM cuts off current to the throttle actuator. The throttle control valve returns to a predetermined opening angle (approximately 16°) by the force of the return spring. The ECM then adjusts the engine output by controlling the fuel injection (intermittent fuel-cut) and ignition timing in accordance with the accelerator pedal opening angle to enable the vehicle to continue at a minimal speed. If the accelerator pedal is depressed firmly and slowly, the vehicle can be driven slowly.
If a "pass" condition is detected and then the ignition switch is turned OFF, the fail-safe operation will stop and the system will return to normal condition.
| Related DTCs | P2119: ETCS malfunction |
|---|---|
| Required sensors / components (Main) | Throttle actuator |
| Required sensors / components (Related) | |
| Frequency of operation | Continuous |
| Duration | 1 sec. |
| MIL operation | Immediate |
| Sequence of operation | None |
MONITOR STRATEGY
| The monitor will run whenever the following DTCs are not present | None |
ENABLING CONDITION
| Difference between "target TP" and "actual TP" | 0.3 V or more |
MALFUNCTION THRESHOLDS
The accelerator pedal position sensor has 2 (main and sub) sensor circuits. If a malfunction occurs in either of the sensor circuits, the ECM detects the abnormal signal voltage difference between the 2 sensor circuits and switches to fail-safe mode. In fail-safe mode, the remaining circuit is used to calculate the accelerator pedal opening to allow the vehicle to continue driving.
If both circuits malfunction, the ECM regards the opening angle of the accelerator pedal to be fully closed. In this case, the throttle valve will remain closed as if the engine is idling.
If a "pass" condition is detected and then the ignition switch is turned OFF, the fail-safe operation will stop and the system will return to normal condition.
| Related DTCs | P2120: APP sensor 1 range check (Fluttering) |
|---|---|
| Related DTCs | P2122: APP sensor 1 range check (low voltage) |
| Related DTCs | P2123: APP sensor 1 range check (high voltage) |
| Related DTCs | P2125: APP sensor 2 range check (Fluttering) |
| Related DTCs | P2127: APP sensor 2 range check (low voltage) |
| Related DTCs | P2128: APP sensor 2 range check (high voltage) |
| Related DTCs | P2138: APP sensor 2 range check (correlation) |
| Required sensors / components (Main) | TP sensor |
| Required sensors / components (Related) | |
| Frequency of operation | Continuous |
| Duration | 0.5 sec.: P2120, P2122, P2125 and P2127 |
| Duration | 2 sec.: P2123, P2128 and P2138 |
| MIL operation | Immediate |
| Sequence of operation | None |
MONITOR STRATEGY
| The monitor will run whenever the following DTCs are not present | None |
|---|---|
| ETCS power | ON |
ENABLING CONDITION
| VPA1 voltage | 0.5 to 4.5 V |
|---|---|
| VPA2 voltage | 1.2 to 4.8 V |
COMPONENTS OPERATING
Scheme 253
The accelerator pedal position sensor has 2 (main and sub) sensor circuits. If a malfunction occurs in either of the sensor circuits, the ECM detects the abnormal signal voltage difference between the 2 sensor circuits and switches to fail-safe mode. In fail-safe mode, the remaining circuit is used to calculate the accelerator pedal opening to allow the vehicle to continue driving.
If both circuits malfunction, the ECM regards the opening angle of the accelerator pedal to be fully closed. In this case, the throttle valve will remain closed as if the engine is idling.
If a "pass" condition is detected and then the ignition switch is turned OFF, the fail-safe operation will stop and the system will return to normal condition.
| Related DTCs | P2121: TP sensor malfunction |
|---|---|
| Required sensors / components (Main) | TP sensor |
| Required sensors / components (Related) | |
| Frequency of operation | Continuous |
| Duration | 0.5 sec. |
| MIL operation | Immediate |
| Sequence of operation | None |
MONITOR STRATEGY
| The monitor will run whenever the following DTCs are not present | None |
|---|---|
| ETCS power | ON |
TYPICAL ENABLING CONDITION
| Difference in voltage between "VAT1 - basic voltage learned value (sensor 1)" and "VPA2 - basic voltage learned value (sensor 2)" | Less than 0.4 V, or more than 1.2 V |
MALFUNCTION THRESHOLDS
| Related DTCs | P2195: A/F sensor signal (Bank 1) stuck lean |
|---|---|
| Related DTCs | P2196: A/F sensor signal (Bank 1) stuck rich |
| Required sensors / components (Main) | A/F sensor |
| Required sensors / components (Related) | |
| Frequency of operation | Continuous |
| Duration | 10 sec. |
| MIL operation | 2 driving cycles |
| Sequence of operation | None |
MONITOR STRATEGY
| The monitor will run whenever the following DTCs are not present | See PRE-CHECK |
|---|---|
| Time after engine start | 30 sec. or more |
| A/F sensor status | Activated |
| A/F admittance | 0.014 1/ohm or more |
| Fuel system status | Closed Loop |
| Engine condition | Running |
| Sub-feedback status | Executing |
| Rear oxygen sensor heater malfunction | Not detected |
ENABLING CONDITION
Malfunction Rich side (P2195)
| A/F sensor voltage | More than 3.8 V |
MALFUNCTION RICH SIDE
Malfunction Lean side (P2196)
| A/F sensor voltage | Less than 2.8 V |
MALFUNCTION LEAN SIDE
Scheme 254
Scheme 255
- Connect the hand-held tester to the DLC3.
- Switch the hand-held tester from normal mode to check mode (see «PRE-CHECK»(ref-180979-S17908463662005073000000) ).
- Start the engine and warm it up for 2 minutes with all the accessory switched OFF.
- Drive the vehicle at 60 to 120 km/h (38 to 75 mph) and engine speed at 1,400 to 3,200 RPM for 3 to 5 minutes.
HINT
If a malfunction exists, the MIL will light up during step (d).
Note. If the conditions in this test are not strictly followed, detecting the malfunction will not be possible. If you do not have a hand-held tester, turn the ignition switch OFF after performing steps (c) and (d), then perform steps (c) and (d) again.
| Related DTCs | P2238: A/F sensor (bank 1) open circuit between AF+ and AF |
|---|---|
| Related DTCs | P2238: A/F sensor (bank 1) short circuit between AF+ and AF |
| Related DTCs | P2238: A/F sensor (bank 1) short circuit between AF+ and GND |
| Related DTCs | P2239: A/F sensor (bank 1) short circuit between AF+ and +B |
| Related DTCs | P2252: A/F sensor (bank 1) short circuit between AF+ and GND |
| Related DTCs | P2253: A/F sensor (bank 1) short circuit between AF- +B |
| Required sensors / components (Main) | A/F sensor |
| Required sensors / components (Related) | ECT sensor, CKP sensor |
| Frequency of operation | Once per driving cycle |
| Duration | 20 sec. |
| MIL operation | 2 driving cycles |
| Sequence of operation | None |
MONITOR STRATEGY
| The monitor will run whenever the following DTCs are not present | See PRE-CHECK |
ENABLING CONDITION
A/F sensor open circuit between AF+ and AF- (P2238)
| Battery voltage | 10.5 V or more |
|---|---|
| ECT | 20°C (68°F) or more |
| Engine condition | Running |
| Time after engine start | 20 sec. or more |
| Time after A/F sensor heating | 20 sec. or more |
A/F SENSOR OPEN CIRCUIT
Others
| Battery voltage | 10.5 V or more |
|---|---|
| Time after ignition switch is OFF to ON | 5 sec. or more |
BATTERY VOLTAGE
| A/F sensor admittance | Less than 0.022 1/ohm |
A/F SENSOR OPEN CIRCUIT
A/F sensor short circuit between AF+ and AF- (P2238)
| Difference between AF+ and AF- voltage | Less than 0.1 V |
A/F SENSOR SHORT CIRCUIT
A/F sensor short circuit between AF+ and GND (P2238)
| AF+ voltage | Less than 0.5 V |
AF AND GND
A/F sensor short circuit between AF+ and +B (P2239)
| AF+ voltage | 4.5 V or more |
AF+ AND +B P2252
A/F sensor short circuit between AF- and GND (P2252)
| AF- voltage | Less than 0.5 V |
AF- AND GND
A/F sensor short circuit between AF- and +B (P2253)
| AF- voltage | 4.5 V or more |
AF- AND +B
| Related DTCs | P2A00: A/F sensor slow response |
|---|---|
| Required sensors/ components (Main) | A/F sensor |
| Required sensors/ components (Related) | VSS, CKP sensor |
| Frequency of operation | Once per driving cycle |
| Duration | 60 sec. |
| MIL operation | 2 drive cycles |
| Sequence of operation | None |
MONITOR STRATEGY
| The monitor will run whenever the following DTCs are not present | See PRE-CHECK |
|---|---|
| Engine condition | Running |
| Time after engine start | 120 sec. or more |
| Fuel system status | Closed Loop |
| A/F sensor status | Activated |
| Idle | OFF |
| Time after idle OFF | 20 sec. or more |
| Engine RPM | 1,400 to 3,200 RPM |
| Vehicle speed | 37 to 74 mph (60 to 120 km/h) |
| Fuel cut | OFF |
| Time after fuel cut is OFF | 20 sec. or more |
| Driving record for 20 sec. or more | 25 mph (40 km/h) or more and 900 RPM or more |
ENABLING CONDITION
The detailed information is described in "CHECKING MONITOR STATUS" (see PRE-CHECK ).
- TID (Test Identification) is assigned to each emission-related component.
- TLT (Test Limit Type): If TLT is 0, the component is malfunctioning when the test value is higher than the test limit. If TLT is 1, the component is malfunctioning when the test value is lower than the test limit.
- CID (Component Identification) is assigned to each test value.
- Unit Conversion is used to calculate the test value indicated on generic OBD scan tools.
TID $06: A/F Sensor
| TLT | CID | Unit Conversion | Description of Test Value | Description of Test Limit |
|---|---|---|---|---|
| 0 | $01 | Multiply by 0.000244 (No dimension) | Parameter for identify A/F sensor response rate (bank 1) | Malfunction criterion |
A/F SENSOR