Transfer Fuel Pump -G6-, CHECKING
Models with an airbag are installed with a crash fuel shut-off system. It reduces the danger of a fire in a crash as the fuel pump is switched off via the fuel pump relay.
When the door is opened the fuel pump is activated for 2 seconds to build up the pressure in the fuel system.
Special tools and workshop equipment required
- Hand held remote control (jumper).
- Multimeter
- Electrical connector test lead set.
Test Conditions
- Battery voltage at least 12.5 volts..
- Power Supply Relay (terminal 30) -J317- OK.
- Fuel filter OK.
- Ignition switched off.
Test Procedure
-- Perform a preliminary check to verify the customers complaint. Refer to PRELIMINARY CHECK .
Test sequence
-- Remove the rear seat bench. Refer to the appropriate service information.
-- Remove cover retainers from the right sealing flange.
-- Disconnect the electrical harness connector from theTransfer Fuel Pump -G6- fuel delivery unit.
-- Connect a hand-held remote control (jumper) to terminal 5 of the fuel delivery unit and to vehicle battery (+).
-- Connect a jumper cable from an Electrical connector test lead set to terminal 1 of the fuel delivery unit and to vehicle Ground (GND).
-- Press switch on the hand-held remote control (jumper).
The Fuel Pump (FP) runs quietly. Avoid surrounding noises while testing the fuel pump.
-- Listen for an operating noise from the fuel pump.
If no operating noise is heard:
-- Remove the fuel delivery unit.
-- Using a multimeter, check the electrical circuit between terminals 1 to and 5 of the fuel delivery unit pump motor for resistance.
Specified value: 1.5 Ω max.
If the specified value was not obtained:
-- Check the wiring for an open circuit, a short circuit to Battery voltage (+) or to Ground (GND).
-- Check the electrical harness connector for damage, corrosion, loose or broken terminals.
-- If necessary, repair the wiring connection.
If the specified value was obtained:
-- Replace the fuel delivery unit.
-- Using a multimeter, check the Transfer Fuel Pump -G6- electrical harness connector to the Fuel Pump Control Module -J538- electrical harness T12 connector for resistance.
| Transfer Fuel Pump -G6- electrical harness connector terminal | Fuel Pump Control Module -J538- electrical harness connector T12 terminals |
|---|---|
| 1 | 2 |
| 2 | 1 |
| 3 | 7 |
| 4 | ground |
--
Final Procedures
After repair work, the following work steps must be performed in the following sequence:
- Check the DTC memory. Refer to DIAGNOSTIC MODE 03 - READ DTC MEMORY .
- If necessary, erase the DTC memory. Refer to DIAGNOSTIC MODE 04 - ERASE DTC MEMORY .
- If the DTC memory was erased, generate readiness code. Refer to READINESS CODE .