Reset/Learn Procedure
Reset Procedure - Performed after the throttle body is cleaned or replaced
- Ignition ON, engine OFF, perform the Idle Learn Reset in Module Setup with a scan tool.
- Engine idling, monitor the Throttle Body Idle Airflow Compensation parameter. The Throttle Body Idle Airflow Compensation value should equal 0 % and the engine should be idling at a normal idle speed.
- Clear the DTCs and return to the diagnostic that referred you here.
Learn Procedure - Performed after the ECM is programmed or replaced
- Engine idling for 3 minutes.
- Monitor the Desired Idle Speed and the actual Engine Speed with a scan tool.
- The ECM will start to learn the new idle cells and Desired Idle Speed should start to decrease.
- Ignition OFF for 60 s.
- Engine idling for 3 minutes.
- After the 3 minute run time the engine speed should return to normal. NOTE: During the drive cycle monitor the DTC information with a scan tool to verify DTC P0506 and P0507 do not set. If DTC P0506 and P0507 set, clear the DTCs so the ECM can continue to learn. If the engine idle speed has not been learned the vehicle will need to be driven at speeds above 70 km/h (44 mph) with several decelerations and extended idles.
- After the drive cycle, the engine speed should return to normal. If the engine idle speed has not been learned, turn OFF the ignition for 60 s and repeat step 6.
- Once the engine speed has returned to normal, clear DTCs and return to the diagnostic that referred you here.
Scheme 67
Scheme 67: Engine Coolant Temperature Sensor Replacement
| Callout | Component Name |
|---|
| Preliminary Procedure Partially drain the cooling system. Refer to Cooling System Draining and Filling (GE 47716) , Cooling System Draining and Filling (Static LF1 or LFW) . |
| 1 | Engine Coolant Temperature Sensor CAUTION: Refer to Fastener Caution . Procedure Reposition the sensor heat shield. Disconnect the ECT sensor harness connector. Tighten 20 N.m (15 lb in) |
| CAUTION |
|---|
| Refer to Fastener Caution . |
Engine Coolant Temperature Sensor Replacement
Scheme 68
Scheme 68: Mass Airflow Sensor with Intake Air Temperature Sensor Replacement
| Callout | Component Name |
|---|
| 1 | Mass Airflow Sensor Fastener (Qty: 2) CAUTION: Refer to Fastener Caution . Tighten 3 N.m (27 lb in) |
| 2 | Mass Airflow Sensor with Intake Air Temperature Sensor Procedure Disconnect the electrical connector. |
| CAUTION |
|---|
| Refer to Fastener Caution . |
Mass Airflow Sensor with Intake Air Temperature Sensor Replacement
Scheme 69
Scheme 69: Manifold Absolute Pressure Sensor Replacement
| Callout | Component Name |
|---|
| Preliminary Procedure Remove the intake manifold cover. Refer to Intake Manifold Cover Replacement . |
| 1 | Manifold Absolute Pressure Sensor Fastener CAUTION: Refer to Fastener Caution . Tighten 4 N.m (35 lb in) |
| 2 | Manifold Absolute Pressure Sensor Procedure Disconnect the electrical connector. |
| CAUTION |
|---|
| Refer to Fastener Caution . |
Manifold Absolute Pressure Sensor Replacement
Scheme 70
Scheme 70: Throttle Inlet Absolute Pressure Sensor Replacement
| Callout | Component Name |
|---|
| 1 | Throttle Inlet Absolute Pressure Sensor Fastener CAUTION: Refer to Fastener Caution . Tighten 4 N.m (35 lb in) |
| 2 | Throttle Inlet Absolute Pressure Sensor Procedure Disconnect the electrical connector. |
| CAUTION |
|---|
| Refer to Fastener Caution . |
Throttle Inlet Absolute Pressure Sensor Replacement
Scheme 71
Scheme 71: Heated Oxygen Sensor Replacement - Bank 1 Sensor 1
| Callout | Component Name |
|---|
| Preliminary Procedures If equipped with FWD, raise and support the vehicle. Refer to Lifting and Jacking the Vehicle . If equipped with AWD, lower the front suspension frame. Refer to Drivetrain and Front Suspension Frame Replacement . |
| 1 | Heated Oxygen Sensor CAUTION: Refer to Heated Oxygen and Oxygen Sensor Caution . CAUTION: Refer to Fastener Caution . TIP: A special anti-seize compound is used in the HO2S threads. The compound consists of liquid graphite and glass beads. The graphite tends to burn away, but the glass beads remain, making the sensor easier to remove. New, or service replacement sensors already have the compound applied to the threads. If the sensor is removed from an exhaust component and if for any reason the sensor is to be reinstalled, the threads must have anti-seize compound applied before reinstallation. Procedure Disconnect the heated oxygen sensor harness connector. If reinstalling the old sensor, coat the threads with anti-seize compound. Refer to Adhesives, Fluids, Lubricants, and Sealers . Tighten 42 N.m (31 lb in) |
| CAUTION |
|---|
| Refer to Heated Oxygen and Oxygen Sensor Caution . |
| CAUTION |
|---|
| Refer to Fastener Caution . |
Heated Oxygen Sensor Replacement - Bank 1 Sensor 1
Scheme 72
Scheme 72: Heated Oxygen Sensor Replacement - Bank 1 Sensor 2
| Callout | Component Name |
|---|
| Preliminary Procedure Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle . |
| 1 | Heated Oxygen Sensor CAUTION: Refer to Heated Oxygen and Oxygen Sensor Caution . CAUTION: Refer to Fastener Caution . TIP: A special anti-seize compound is used in the HO2S threads. The compound consists of liquid graphite and glass beads. The graphite tends to burn away, but the glass beads remain, making the sensor easier to remove. New, or service replacement sensors already have the compound applied to the threads. If the sensor is removed from an exhaust component and if for any reason the sensor is to be reinstalled, the threads must have anti-seize compound applied before reinstallation. Procedure Disconnect the heated oxygen sensor harness connector. If reinstalling the old sensor, coat the threads with anti-seize compound. Refer to Adhesives, Fluids, Lubricants, and Sealers . Tighten 42 N.m (31 lb in) |
| CAUTION |
|---|
| Refer to Heated Oxygen and Oxygen Sensor Caution . |
| CAUTION |
|---|
| Refer to Fastener Caution . |
Heated Oxygen Sensor Replacement - Bank 1 Sensor 2
Scheme 73
Scheme 73: Heated Oxygen Sensor Replacement - Bank 2 Sensor 1
| Callout | Component Name |
|---|
| 1 | Heated Oxygen Sensor CAUTION: Refer to Heated Oxygen and Oxygen Sensor Caution . CAUTION: Refer to Fastener Caution . Procedure Disconnect the heated oxygen sensor harness connector. If reinstalling the old sensor, coat the threads with anti-seize compound. Refer to Adhesives, Fluids, Lubricants, and Sealers . TIP: A special anti-seize compound is used in the HO2S threads. The compound consists of liquid graphite and glass beads. The graphite tends to burn away, but the glass beads remain, making the sensor easier to remove. New, or service replacement sensors already have the compound applied to the threads. If the sensor is removed from an exhaust component and if for any reason the sensor is to be reinstalled, the threads must have anti-seize compound applied before reinstallation. Tighten 42 N.m (31 lb in) |
| CAUTION |
|---|
| Refer to Heated Oxygen and Oxygen Sensor Caution . |
| CAUTION |
|---|
| Refer to Fastener Caution . |
Heated Oxygen Sensor Replacement - Bank 2 Sensor 1
Scheme 74
Scheme 74: Heated Oxygen Sensor Replacement - Bank 2 Sensor 2
| Callout | Component Name |
|---|
| Preliminary Procedure Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle . |
| 1 | Heated Oxygen Sensor CAUTION: Refer to Heated Oxygen and Oxygen Sensor Caution . CAUTION: Refer to Fastener Caution . Procedure Disconnect the heated oxygen sensor harness connector. If reinstalling the old sensor, coat the threads with anti-seize compound. Refer to Adhesives, Fluids, Lubricants, and Sealers . NOTE: A special anti-seize compound is used in the HO2S threads. The compound consists of liquid graphite and glass beads. The graphite tends to burn away, but the glass beads remain, making the sensor easier to remove. New, or service replacement sensors already have the compound applied to the threads. If the sensor is removed from an exhaust component and if for any reason the sensor is to be reinstalled, the threads must have anti-seize compound applied before reinstallation. Tighten 42 (31 lb in) |
| CAUTION |
|---|
| Refer to Heated Oxygen and Oxygen Sensor Caution . |
| CAUTION |
|---|
| Refer to Fastener Caution . |
| NOTE |
|---|
| A special anti-seize compound is used in the HO2S threads. The compound consists of liquid graphite and glass beads. The graphite tends to burn away, but the glass beads remain, making the sensor easier to remove. New, or service replacement sensors already have the compound applied to the threads. If the sensor is removed from an exhaust component and if for any reason the sensor is to be reinstalled, the threads must have anti-seize compound applied before reinstallation. |
Heated Oxygen Sensor Replacement - Bank 2 Sensor 2
Scheme 75
Scheme 75: Accelerator Pedal Position Sensor Replacement
| Callout | Component Name |
|---|
| Preliminary Procedures Remove the instrument panel insulator. Refer to Instrument Panel Insulator Panel Replacement - Left Side (Equinox) , Instrument Panel Insulator Panel Replacement - Left Side (Terrain) . Remove the communication interface module. Refer to Communication Interface Module Replacement . |
| 1 | Accelerator Pedal Fastener (Qty: 3) CAUTION: Refer to Fastener Caution . Tighten 8 N.m (71 lb in) |
| 2 | Accelerator Pedal Position Sensor Procedure Disconnect the electrical connector. |
| CAUTION |
|---|
| Refer to Fastener Caution . |
Accelerator Pedal Position Sensor Replacement
Fuel Tank Draining
CH-45004 Fuel Tank Drain Hose
For equivalent regional tools, refer to Special Tools .
| WARNING | Never drain or store fuel in an open container. Always use an approved fuel storage container in order to reduce the chance of fire or explosion. |
| WARNING | Place a dry chemical (Class B) fire extinguisher nearby before performing any on-vehicle service procedures. Failure to follow these precautions may result in personal injury. |
- Remove the fuel fill cap.
- Raise and suitably support the vehicle. Refer to «Lifting and Jacking the Vehicle»(ref-491131-S06536846302012073000000) .
- Loosen the fuel fill pipe hose clamps and slide the fill pipe hose up the filler pipe.
- Insert the CH-45004 fuel tank drain hose into the fuel tank until the hose reaches the bottom of the fuel tank.
- Use an hand or air operated pump device in order to drain as much fuel as possible.
