In brief-
Our 2013 Crosstrek's Tail lights work intermittently for a few weeks then blow lighting fuse in the engine bay.
At about the same time the Highbeams go quite dim and the center console lights aren't back lit.
Dealer diagnosed it as clock spring issue and replaces it. Problem is not solved.
We speak at length with the mechanic and he says he needs more time to diagnose. Also notes that the lighting circuit (15 amp in the engine bay) kept popping. But did not pop a 20amp. He also says that there is no diagram for the electrical in this model/year.
Pulls BIU from another car and installs it. Nothing changes.
Dealer then says the wiring harnesses needs replaced. We disagree and take the car home. Now the turn signals and head lights are not working but all other electrical systems work as far as I can tell.
I find that the circuit in question has a 20 amp fuse installed when it calls for a 15 amp.
Also find the engine ground strap to be holding on by a thread and replace it. Placed the battery on a charger and ordered a multimeter to inform my testing.
Does anyone have an electrical schematic for a 2013 crosstrek? Do they exist?
What is downstream of the lighting fuse (15 amp in the engine bay)?
Is there module that would control the components in question ie. Body integrated unit?
Is the dealer/mechanic competent?
Below is the statement of diag the dealer wrote
"Technician tested combination light switch, roll connector. All relays and fuses, and inspected multiple harnesses, as well as tested all bulbs to find where short is in harness. When testing clock spring (roll connector), resistance tests were found to be out of specifications on all terminals. After replacing clock spring and combination light switch, fuse for interior light stopped blowing, but other problems still existed and kept changing. For diagnostic purposes, replaced both fuse boxes with known good ones from another car. No change. Continued testing. Found that with power to fuse, relay is not activating. Swapped with known good relays. No change. Inspected all visible areas of wiring harness for chafing, kinks, chewed wires, etc. non found. Rechecked switch and clock spring, test good. In order to properly diagnose, vehicle would have to have most of vehicle disassembled, including interior, to pierce wires and test where power ends in order to find short in wiring. In summary, fuses ok, relays ok, switches ok, concern is within wiring harness. It is likely that the fuse will pop again, and the switch and or clock spring could again be damaged if the affected area of the wiring harness comes back into a short to ground contact and surges voltage through system, but at this time the components are testing okay, but lights still not working."
Our 2013 Crosstrek's Tail lights work intermittently for a few weeks then blow lighting fuse in the engine bay.
At about the same time the Highbeams go quite dim and the center console lights aren't back lit.
Dealer diagnosed it as clock spring issue and replaces it. Problem is not solved.
We speak at length with the mechanic and he says he needs more time to diagnose. Also notes that the lighting circuit (15 amp in the engine bay) kept popping. But did not pop a 20amp. He also says that there is no diagram for the electrical in this model/year.
Pulls BIU from another car and installs it. Nothing changes.
Dealer then says the wiring harnesses needs replaced. We disagree and take the car home. Now the turn signals and head lights are not working but all other electrical systems work as far as I can tell.
I find that the circuit in question has a 20 amp fuse installed when it calls for a 15 amp.
Also find the engine ground strap to be holding on by a thread and replace it. Placed the battery on a charger and ordered a multimeter to inform my testing.
Does anyone have an electrical schematic for a 2013 crosstrek? Do they exist?
What is downstream of the lighting fuse (15 amp in the engine bay)?
Is there module that would control the components in question ie. Body integrated unit?
Is the dealer/mechanic competent?
Below is the statement of diag the dealer wrote
"Technician tested combination light switch, roll connector. All relays and fuses, and inspected multiple harnesses, as well as tested all bulbs to find where short is in harness. When testing clock spring (roll connector), resistance tests were found to be out of specifications on all terminals. After replacing clock spring and combination light switch, fuse for interior light stopped blowing, but other problems still existed and kept changing. For diagnostic purposes, replaced both fuse boxes with known good ones from another car. No change. Continued testing. Found that with power to fuse, relay is not activating. Swapped with known good relays. No change. Inspected all visible areas of wiring harness for chafing, kinks, chewed wires, etc. non found. Rechecked switch and clock spring, test good. In order to properly diagnose, vehicle would have to have most of vehicle disassembled, including interior, to pierce wires and test where power ends in order to find short in wiring. In summary, fuses ok, relays ok, switches ok, concern is within wiring harness. It is likely that the fuse will pop again, and the switch and or clock spring could again be damaged if the affected area of the wiring harness comes back into a short to ground contact and surges voltage through system, but at this time the components are testing okay, but lights still not working."