Intake Manifold Runner Position Sensor 2 G512, Checking

Intake Manifold Runner Position Sensor 2 G512, Checking

Special tools, testers and auxiliary items required
- Multimeter.
- Wiring diagram.

Test requirements
- The Engine Control Module (ECM) 2 J624 fuses OK.
- The parking brake engaged.
- The battery voltage at least 12.5 V.
- The selector lever of automatic transmission in position "P" or "N".
- All electrical consumers switched off (radiator fan must NOT run during test).
- A/C switched off.
- The fuel tank at least 1 / 4 filled.
- The ignition switched off.

Procedure







- Remove the rear engine cover - arrows -.

Checking voltage supply







- Disconnect the Intake Manifold Runner Position Sensor 2 G512 electrical harness connector - 1 -.
Switch the ignition on.







- Using a Multimeter, check the Intake Manifold Runner Position Sensor 2 G512 electrical harness connector for voltage.

Intake Manifold Runner Specified
Position Sensor 2 G512 value
electrical harness connector
terminals
1 to Battery positive (+) Battery voltage (+)
2 to Ground (GND) about 5 V
3 to Ground (GND) about 5 V

Switch the ignition off.

If the specified values are obtained:
- Replace the Intake Manifold Runner Position Sensor 2 G512.

If specified values are not obtained:

Checking wiring
If the manufacturers test box is being used. Perform the following step.
- Install the test box.

If the manufacturers test box is not being used. Perform the following step.
- Remove the Engine Control Module (ECM) 2 J624.
- Using a multimeter, check the Intake Manifold Runner Position Sensor 2 G512 electrical harness connector terminals to the Engine Control Module (ECM) 2 J624 electrical harness connector T60a terminals for an open circuit.

Intake Manifold Runner Engine Control Module
Position Sensor 2 G512 (ECM) 2 J624 electrical
electrical harness connector connector T60a terminals
terminals or test box sockets
1 26
2 22
3 14

Specified value: 1.5 Ohms Max.

If the specification was not obtained:
- Check the wiring for a short circuit to each other, Battery (+), Ground (GND), or an open circuit.
- Check the electrical harness connector for damage, corrosion, lose or broken terminals.
- If necessary, repair the faulty wiring connection.

If no malfunction is detected in the wiring:
- Replace the Engine Control Module (ECM) 2 J624.

The Intake Manifold Runner Position Sensor 2 G512 must be adapted to the Engine Control Module (ECM) 2 J624.

To adapt the Intake Manifold Runner Position Sensor 2 G512 to the Engine Control Module (ECM) 2 J624 perform the following steps:

Test requirements
- The battery voltage at least 12.5 V.
- Coolant temperature must be between 20 degrees C and 80 degrees C.
- No DTCs stored in DTC memory.

- Start the engine and let run at idle for at least 70 seconds.
- The Engine Control Module (ECM) 2 J624 will automatically adept the Intake Manifold Runner Position Sensor 2 G512.







- Install the rear engine cover - arrows -.

Final procedures
After the repair work, the following work steps must be performed in the following sequence:
1. Check the DTC memory. Diagnostic Mode 03 - Read DTC Memory
2. If necessary, erase the DTC memory. Diagnostic Mode 04 - Erase DTC Memory
3. If the DTC memory was erased, generate readiness code.

- End of diagnosis.