DTC P0511 - Idle Air Control Circuit Failure
Conditions for setting dtc P0511
| ￭ | Engine Running |
| ￭ | Idle Air Control ≤ 0.1 volts or detects an open circuit |
| ￭ | The above must be present for a period of 128 instances/cycles or greater to trigger DTC P0511 |
|
Step |
Action |
Value (s) |
YES |
NO |
|
1 |
- Key on, Engine running - Within VCM Live, open the IAC sensor DTC parameter, does the IAC sensor parameter display 0.1 volts or less? |
≤ 0.1 volts |
Go to Step 2 |
Intermittent Issue (Refer to Intermittent Diagnostics) |
|
2 |
- Key OFF - Disconnect the IAC sensor connector & the IAC ECU connector "A" - Using a DVOM check for continuity between the IAC sensor connector cavity "A" & the ECU connector "A" pin 16 - Do you have continuity between them? |
|
Go to Step 3 |
Repair the circuit as necessary, locate any wires that need to be repaired or replaced |
|
3 |
- Key OFF - Disconnect the IAC sensor connector & the IAC ECU connector "A" - Using a DVOM check for continuity between the IAC sensor connector cavity "B" & the ECU connector "A" pin 33 - Do you have continuity between them? |
|
Go to Step 4 |
Repair the circuit as necessary, locate any wires that need to be repaired or replaced |
|
4 |
- Key OFF - Disconnect the IAC sensor connector & the IAC ECU connector "A" - Using a DVOM check for continuity between the IAC sensor connector cavity "C" & the ECU connector "A" pin 11 - Do you have continuity between them? |
|
Go to Step 5 |
Repair the circuit as necessary, locate any wires that need to be repaired or replaced |
|
5 |
- Key OFF - Disconnect the IAC sensor connector & the IAC ECU connector "A" - Using a DVOM check for continuity between the IAC sensor connector cavity "D" & the ECU connector "A" pin 27 - Do you have continuity between them? |
|
Go to Step 6 |
Repair the circuit as necessary, locate any wires that need to be repaired or replaced |
|
6 |
- Key OFF - Inspect IAC connector and pins for corrosion, contamination or any physical damage. - Any issues found? |
|
Repair the circuit as necessary and repair any pins with any corrosion, contamination or physcal damage |
Go to Step 7 |
|
7 |
- Replace the IAC sensor - Is the replacement complete? |
|
Go to Step 8 |
N/A |
|
8 |
- Clear any DTC from the ECU - Turn the ignition off and wait 30 seconds - Start the engine and operate the engine to full operating temperature - Observe the Check Engine Light on the Menu bar in VCM Live - After operating the engine within the test parameters, check for any store codes - Does the engine operate without any stored DTC's? |
|
System is now operational and ready to be tuned |
Contact HP Tuners Support |
Table 23. Idle Air Control Circuit Failure Diagnostics Table
Figure 11. IAC Sensor Cavity Connector Location
