Based on the engine speed and throttle opening angle information from the ECM, the acoustic control induction system controls the intake air control valve actuator. In order to change the effective length of the air control valve actuator opens and closes. As a result, the low-to-medium speed range torque and high rpm range performance are improved.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Memory | Note |
|---|---|---|---|---|---|---|
| P066012 | Intake Manifold Tuning Valve Control Circuit Short to Battery | Motor operation circuit (ECM interior) detects overcurrent or overheat (2 trip detection logic): | ·
Open or short in intake air control valve actuator circuit ·
Intake air control valve actuator ·
ECM |
Does not come on | DTC stored | SAE Code: P0662 |
| P066014 | Intake Manifold Tuning Valve Control Circuit Short to Ground or Open | Open or short in intake air control valve actuator circuit (2 trip detection logic): | ·
Open or short in intake air control valve actuator circuit ·
Intake air control valve actuator ·
ECM |
Does not come on | DTC stored | SAE Code: P0661 |
Read freeze frame data using the GTS. The ECM records vehicle and driving condition information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air fuel ratio was lean or rich, and other data from the time the malfunction occurred.
Perform the Active Test using the GTS.
| Proceed to |
|---|
| OK |
| NG |
OK
NG
Inspect the intake air control valve actuator.
| Proceed to |
|---|
| OK |
| NG |
OK
NG
Disconnect the intake air control valve actuator connector.
Disconnect the ECM connector.
Measure the resistance according to the value(s) in the table below.
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| E65-2 (+B) - N1-2 (ASM+) | Always | Below 1 Ω |
| E65-1 (ACIS) - N1-1 (ASM-) | Always | Below 1 Ω |
| E65-2 (+B) or N1-2 (ASM+) - Body ground and other terminals | Always | 10 kΩ or higher |
| E65-1 (ACIS) or N1-1 (ASM-) - Body ground and other terminals | Always | 10 kΩ or higher |
| Proceed to |
|---|
| OK |
| NG |
OK
NG