I have repaired my ingniton switch, got it working again (parkingligths was not working) but after assembly everything, my rpm meter, neutral light, one abs light (lower one) GS 2001 model

There's this website www.reliable-store.com
They have books on ALL vehicles.
it covers wiring diagrams, electrical diagrams,
fuse diagram, torque specs, PCV, error codes, fault codes, service info, repair info, parts info, owner's/service/repair/parts/maintenance manuals etc everything totally..

I have 1987 toyota 4runner model and I keep servicing and when needed repair it on my own. worth it !!!

If the driver side quit working and the passenger side does then you need to change the light

Light doesn't work

1. Light bulb

If your refrigerator light does not power on, the first thing to replace would logically be the light bulb itself.

1. Light assembly

If your refrigerator light does not power on and you have replaced the bulb, this is an indication that the light assembly may have malfunctioned and will require replacement.

1. Light switch

If you notice that your refrigerator lights are not working, replace your refrigerator light bulb. If this does not correct the issue, proceed to check the power light switch.

1. Door switch

If your refrigerator light is not working and it is not the bulb itself or the power light switch, the next thing to check is the door switch. This can be checked for continuity with an ohm meter. If there is no continuity present, the door switch will need to be replaced.

1. Light socket

If your refrigerator light is not working after replacing the light bulb, check for a possible damaged light socket. If the socket is faulty, replace the part to get your refrigerator light to power on again.

1. Light board

If the refrigerator light is not working the light board could be defective. The LEDs on this board are not repairable, so the entire board will need to be replaced.

It needs a scanner on it to find the problem while driving it. Several things can cause this. At 4000 rpm's in park the ecm will suppress the engine. this would be the Neutral safety switch. So going from there, if not the switch, it could be wiring or a bad buffer in the ecm.

bad neutral safety switch,here's a link to it, Repair Guides Instruments And Switches Back up Light Switch AutoZone com

Neutral Safety Switch

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DESCRIPTION

The neutral safety switch is a combination switch that also controls the backup lights and gear position indicators. The switch is located on the transaxle assembly.Here's a link to the part.
Duralast Neutral Safety Switch JA4308 1999 Honda Accord EX 6 Cylinders...

Code 12. RPM signal.
Problem area: Loose connection, broken rpm signal wire from distributor to ecm to rpm meter, rpm meter, distributor assembly or ecm defective.
Code 22. Water temperature signal.
Problem area: Loose connection at water temperature sensor connector, broken wire between the sensor and the ecm, defective sensor or ecm.

could have faulty starter or starter solenoid.hook test light make you a test light with longer wires and 12 volt bulb with socket go junk yard find good bulb with socket.hook test light to starter and see if test light lights up if so your starter or starter solenoid has a open winding. if test light dont light up could have blowed fuse to transmission neutral switch or neutral switch could be bad.try to start vechicle in neutral if vechicle starts your transmission neutral switch out of adjustment or neutral switch faulty check make sure wires going to neutral switch is damaged.

Take it to a qualified repair shop , Thinking ??? Also was thinking the MAF sensor or Intake Air sensor might be faulty . TESTING IS THE WAY TO A PROPER FIX !!!!!

okay when checking a diode your meter should be in diode mold a diode should only allow current to flow in one direction