2000 Passat Wagon 6 cylinder tiptronic, 114,000 miles. Car won't lock with fob and even with key-in-door occasionally won't activate alarm. This has been an issue for over a year.
Yesterday's morning compute ended before it started when the car would not.
Would not turn over, no noise of any kind from the starter. I had a CEL, EPC and battery warning light.
Interior lights and sunroof inoperable. I have exterior lights, radio, dashboard. Battery was fully charged.
All fuses (including #6 & 14) are good, I checked several times. I touched relay #53 (slot #13) and it felt like it was activating. I don't have a relay in #12 position.
The wire braid from the solonoid to starter looks and feels great. At the power cable into the starter I have battery voltage.
At the power cable on the bayonet lug into the solenoid there are NO volts at any time (key in OFF, ACC or Start position).
I VagComeed, and got codes:
16684-Random Cylinder Misfire
166870-Cylinder 3 misfire
16690-Cylinder 6 misfire
17831-Secondary Air Inject Bank A-Insufficient flow
17819-Secondary Air Inject Bank B-Insufficient flow
17521-Oxygen (Lambda) sensor B1, S1-Internal resistance too high.
I didn't try to bypass relay #13. Would doing so prove anything?
Is lack of interior lighting & sunroof, BUT good fuses all across the board significant? They means a short in the wiring to or from the fuse?
Do I need to check the actual ignition switch? Now that I'm typing this, seems like I do, but doesn't the relay #13 working prove the switch is good (BUT have I really proven #13 is good just because it "felt" like it was working?)
What else can I try?
Any suggestions appreciated!