Charge Pressure Actuator Position Sensor
Charge Pressure Actuator Position Sensor
Observe all safety precautions: => [ Safety Precautions ] Safety Precautions
View clean working conditions: => [ Clean Working Conditions ] Clean Working Conditions
Prior to repair work, perform a preliminary check to verify the condition. Refer to => [ Preliminary Check ] Preliminary Check.
• Use only gold-plated terminals when servicing terminals in the electrical harness connector of the IAT sensor (G42).
Special tools, testers and auxiliary items required
• Multimeter.
• Wiring diagram.
Test requirements
• The Engine Control Module (ECM) (J623) fuses OK.
• Battery voltage at least 12.5 volts.
• All electrical consumers such as, lights and rear window defroster, switched off.
• On vehicles with automatic transmission, selector lever in position "P" or "N".
• A/C switched off.
• Ground connections between engine/transmission/chassis OK.
• Ignition switched off.
Test procedure
- Perform a preliminary check to verify the customers complaint. Refer to => [ Preliminary Check ] Preliminary Check
Start diagnosis
- Remove the engine cover. Refer to the Repair Information.
- Disconnect the Charge Pressure Actuator Position Sensor (G581) electrical harness connector.
- Using a multimeter, check the Charge Pressure Actuator Position Sensor (G581) connector terminals 1 to 2 for resistance.
Specified value: 6.30K ohms (+/- 300 ohms)
- Using a multimeter, check the Charge Pressure Actuator Position Sensor (G581) connector terminals 2 to 3 for resistance.
Specified value: 176 ohms (+/- 60 ohms)
If the specified value was Not obtained:
- Replace the Charge Pressure Actuator Position Sensor (G581) Refer to the Repair Information.
If the specified value was obtained:
Checking voltage
- Disconnect the Charge Pressure Actuator Position Sensor (G581) electrical harness connector.
- Turn ON the ignition switch.
- Using a multimeter, check the Charge Pressure Actuator Position Sensor (G581) electrical harness connector terminals 2 to 3 for voltage.
Specified value: Near 5 V
- Switch the ignition off.
Proceed to Checking wiring:
Checking wiring
- Remove the Engine Control Module (ECM) (J623). Refer to the Repair Information.
- Using a multimeter, check the Charge Pressure Actuator Position Sensor (G581) electrical harness connector terminals to the Engine Control Module (ECM) (J623) electrical harness connector T60 terminals for an open circuit. Refer to Wiring Diagrams for Pin locations.
Specified value: 1.5 ohms max.
If the specified value was Not obtained:
- Check the wiring for an open, high resistance or short to ground.
- If necessary, repair the faulty wiring connection.
- Check the electrical harness connector for damage, corrosion, loose or broken terminals.
If no malfunction is detected in the wiring and the voltage supply was OK:
- Replace the Charge Pressure Actuator Position Sensor (G581) Refer to the Repair Information.
If no malfunction is detected in the wiring and the voltage supply was Not OK:
- Replace the Engine Control Module (ECM) (J623). Refer to the Repair Information.
- Install the engine cover. Refer to the Repair Information.
Final procedures
After the repair work, the following work steps must be performed in the following sequence:
1. Check the DTC memory. Refer to => [ Diagnostic Mode 03 - Read DTC Memory ] Diagnostic Modes 01 - 09.
2. If necessary, erase the DTC memory. Refer to => [ Diagnostic Mode 04 - Erase DTC Memory ] Diagnostic Modes 01 - 09.
3. If the DTC memory was erased, generate readiness code. Refer to => [ Readiness Code ] Monitors, Trips, Drive Cycles and Readiness Codes.