Throttle Position (TP) Sensor G69 / Throttle Position (TP) Sensor G88, Checking (Engine Code AHA)

Special tools, testers and auxiliary items required 

• Multimeter.
• Wiring diagram

Test requirement 

• The Engine Control Module (ECM) J220 fuses OK.
• Battery voltage at least 12.5 volts.
• All electrical consumers such as, lights and rear window defroster, switched off.
• Vehicles with automatic transmission, shift selector lever into position "P" or "N".

• A/C switched off.
• Ground (GND) connections between engine/transmission/chassis OK.

Test procedure 

• Perform a preliminary check to verify the customers complaint. Refer to → Preliminary check  .

Start diagnosis 

• Remove the drivers side storage compartment. Refer to 68 - INTERIOR EQUIPMENT .

• Disconnect the Throttle Position (TP) Sensor G69 / Throttle Position (TP) Sensor G88 6-pin electrical harness connector - 2  -.

Checking voltage supply and wiring

• Switch the ignition on.

• Using a Multimeter, check the following wiring connections for voltage.

Throttle Position (TP) Sensor G69 / Throttle Position (TP) Sensor G88 electrical harness connector terminal	Specified value
1 to Ground (GND)	about 5 V
1 to 5	about 5 V
2 to Ground (GND)	about 5 V
2 to 3	about 5 V

• Switch the ignition off.

If the specification is not obtained:

If the manufacturers test box is being used. Perform the following step.

• Install the Test Box 105 Pin VAG1598/31 (Engine Code ATQ ) Test Box 80 Pin VAG1598/22 (Engine Code AHA). Refer to 24 - MULTIPORT FUEL INJECTION (MFI) .

If the manufacturers test box is not being used. Perform the following step.

• Remove the Engine Control Module (ECM) J220. Refer to → Engine Control Module (ECM) J220, replacing  .

• Using a Multimeter, check the Throttle Position (TP) Sensor G69 / Throttle Position (TP) Sensor G88 electrical harness connector terminals to the Engine Control Module (ECM) J220 electrical connector T80 for resistance.

Throttle Position (TP) Sensor G69 / Throttle Position (TP) Sensor G88 electrical harness connector terminals	Engine Control Module (ECM) J220 electrical connector T80 terminals or test box socket
1	66
2	59
3	69
4	62
5	75
6	74

Specified value: 1.5 Ω max.

If the specification is not obtained:

• Check the wiring for a short circuit to each other, Battery (+), and Ground (GND).
• 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 and the voltage supply was OK:

• Replace the Throttle Position (TP) Sensor G69 / Throttle Position (TP) Sensor G88.

If no malfunction is detected in the wiring and if the voltage supply was not OK:

• Erase the DTC memory. Refer to → Diagnostic Mode 04: Reset/delete diagnostic data  .
• Perform a road test to verify repair.

If the DTC does not return:

Repair complete, Generate readiness code. Refer to → Readiness Code Description  .

• End diagnosis.

If the DTC does return and no malfunction is detected in the wiring and the voltage supply was OK:

• Replace the Engine Control Module (ECM) J220. Refer to → Engine Control Module (ECM) J220, replacing  .
• Assembly is performed in the reverse of the removal.

Final procedures 

After repair work, the following work steps must be performed in the following sequence:

1. Check the DTC memory.
2. If necessary, erase the DTC memory.
3. If the DTC memory was erased, generate readiness code.

End of diagnosis.