AR164-05 Starter circuit troubleshooting
If you get a click when you turn key to start that is probably I10 starter relay under fuse panel door which is located on left side of console to left of radio area. You need to open fuse panel door and verify that it is I10 relay that is clicking. If Bosch relay it will have red strip on it. RED STRIPE means it has a diode in it.
Now to verify it is actually energizing and sending current forward towards starter solenoid you need to open hood, remove plastic cover over a/c components behind false firewall at base of windshield.
Locate largest round electrical connector G151 near blower motor housing and unscrew it and locate pin 1 (black power wire) that comes from I10 starter relay. With key on check for 12v at this pin when relay clicks.
If you have power check female socket 1 in other half of connector for damage/corrosion. Clean with electrical connector cleaner and apply some dielectric grease and reconnect and see if starter will now work.
If still no joy you need to try to access black wire going from that pin 1 in G151 at starter A11 itself underneath car and check for power with key in start.
Here are a couple pictures that may help:
First off do you have a good fully charged battery with proper level of electrolyte/distilled water in each cell with correct specific gravity in each cell?Following along with this thread and others with similar symptoms, I have the same problem. My LS was running great until three days ago when it would not start. As indicated by many of the great minds here and a very savy friend, I had the battery replaced with a brand new one, the cables cleaned, etc. and no joy. Is there a diagram that anyone can refer me to so I can follow along with the other trouble shooting proceedures, I.e., ignition switch, gear shift, P1, etc.?
If this helps, I can push start it with no problem and once it is on, it runs great, all the lights work fine when the key is turned on, there is a clicking sound when the key goes all the way over but now start...
Please help... This car is way to amazing to let her sit in the garage....
Thanks in advance, GalfnAlfa
If you get a click when you turn key to start that is probably I10 starter relay under fuse panel door which is located on left side of console to left of radio area. You need to open fuse panel door and verify that it is I10 relay that is clicking. If Bosch relay it will have red strip on it. RED STRIPE means it has a diode in it.
Now to verify it is actually energizing and sending current forward towards starter solenoid you need to open hood, remove plastic cover over a/c components behind false firewall at base of windshield.
Locate largest round electrical connector G151 near blower motor housing and unscrew it and locate pin 1 (black power wire) that comes from I10 starter relay. With key on check for 12v at this pin when relay clicks.
If you have power check female socket 1 in other half of connector for damage/corrosion. Clean with electrical connector cleaner and apply some dielectric grease and reconnect and see if starter will now work.
If still no joy you need to try to access black wire going from that pin 1 in G151 at starter A11 itself underneath car and check for power with key in start.
Here are a couple pictures that may help:
