Join Date: Mar 2019
Car: 2001 Outback Sedan Limited
Feedback Score: 0 reviews
I own a 2001 Outback Sedan Limited and have been dealing with starting issues for about a year now. A local mechanic installed a new starter and fixed something with my key system about 8 months ago. They also installed a new powersteering rack and pump, new water pump, and new timing belt, but those were unrelated, just worn and broke in a small accident. The problem seemed to go away when the new starter was installed, but it didn't. I bought a new battery 2 months ago, same thing, the problem seemed to leave and came back after about a week. I have no keyless entry or remote start.
What happens is about 50% of the time my car won't start. Jump starting used to fix it, but today that didn't help. Sometimes it turns right on, no issues. Other times I turn the key, nothing, except as I release from start position there's a single loud click coming from around the starter area. At least on that side of the engine bay. Once it doesn't start, it stays dead until I jump it. The battery will be at 12.6-12.8v, won't start.Yet, I've started at 12.4v. I drove to a shop and they brought out a portable tester. Car failed to started right there after being off for 5 minutes. Their box thing said the starting system and voltage regulator failed. I drive home, took out my alternator and brought it to them, so they can bench test. It clears, they say it's good so I put it back in, and the car starts. I pull some hair out.
I cut back about 3in. of corrosion on my starting and grounding battery wire and put on new clamps, that helped for about week. I test .2ohms to starter, engine block, and chassis ground. There doesn't seem to be a power draw as my battery maintains its charge after sitting for a month after a recent vacation. Side note, car started first try after being gone so long, yet it won't start after being at work today for 3 hours. I pull more hair out. A multimeter test shows .015amps draw.
I've had these DTC codes since owning the car.
P0500 - Speed Sensor Malfunction
P1540 - Speed Sensor Malfunction 2 (My speedometer works fine, sometimes I feel like it shifts slow. Read about how that could happen cause the ECM or trans has trouble knowing how fast the car is going?)
P1590 - Neutral Position Switch Circuit High - Not sure if this is relevant to these two codes, but being in neutral or park seems to have no effect on starting.
P1591- Neutral Position Switch Low Input
These below are newer. Above ones are still there after clear. I cleared the codes and ran diagnostics as per the manual. Connecting the green clips under the dash, running engine in neutral at 2500rpms for 40 seconds, and then driving at 6mph for a bit. These popped up after. But it's been over 6 months since I re-checked codes.
P1518 - Starter Switch Circuit Low Input
P0512 - Starter Switch Circuit High Input
P0136 - Rear Oxygen Sensor Circuit Malfunction
I have a technical manual but I'm at a loss at where everything is. I want to work on this myself, I really have fun doing it. I'm just confused about things.
At the moment my plan is to focus on those neutral and starter switch position codes.
Also, I'm looking at doing a big3 wiring system. Would it help?
I have pages from the manual on imgur, but I can't link them apparently. Let me know if you need them, and I can PM them.
Anyone have ideas about what's going on?
2001 Subaru Outback Sedan Limited