The three waveforms below are taken from the #1 and #4
injectors. The top waveform is from the high side (feed side) of the #1
and #4 injectors, while the middle waveform is from the low side (ground
side) of the #1 injector and the bottom waveform is from the low side
of the #4 injector.
The middle waveform is the same as the top waveform because
there is no ground for the circuit. With no current flowing in the
circuit, the #1 injector is not energized and fuel does not flow.
The bottom waveform shows that ground is supplied and there
is a voltage drop across the #4 injector. With current flowing in the
circuit, the #4 injector is energized and fuel flows.
Passive Occupant Detection System (PODS): Repair procedures
Removal
1.
Disconnect the battery negative cable, and wait for at least three minutes before beginning work.
2.
Remove the front passenger seat assembly. (Refer to the Body group- Seat)
3.
...
4WD ECU: Repair procedures
Replacement
Prior to replacing the 4WD ECU, check the 4WD ECU''s clutch
learing with the GDS tool. (Refer to " Coupling assembly " in 4WD group)
1.
Remove the lo ...