Boxster 987 Brake lights!
Discussion
Definitely check the correct bulb fitment; listed in the handbook. After fitting if they still don't work try a battery disconnect/reconnect as the front/rear ECU's can get a bit confused.
When did they stop working? After a single bulb replacement or during an upgrade? (fitting LED bulbs?)
I have had it where a stored fault locks out the ECU and clearing the fault is the only way to reactivate the lights
When did they stop working? After a single bulb replacement or during an upgrade? (fitting LED bulbs?)
I have had it where a stored fault locks out the ECU and clearing the fault is the only way to reactivate the lights
Pope said:
Definitely check the correct bulb fitment; listed in the handbook. After fitting if they still don't work try a battery disconnect/reconnect as the front/rear ECU's can get a bit confused.
When did they stop working? After a single bulb replacement or during an upgrade? (fitting LED bulbs?)
I have had it where a stored fault locks out the ECU and clearing the fault is the only way to reactivate the lights
Not sure this will help as the centre light works fine and it must be on the same circuit?When did they stop working? After a single bulb replacement or during an upgrade? (fitting LED bulbs?)
I have had it where a stored fault locks out the ECU and clearing the fault is the only way to reactivate the lights
Rear lights are controlled by the rear end electronics ECU - the left right and centre are fed by 3x different circuits from the ECU - This allows fault diagnosis (hi level brake light faulty / left brake light faulty/ right brake light faulty).
Make sure the correct bulbs are fitted - Not just that the same type are fitted as removed - could have been incorrectly installed before but not necessarily triggered an issue - seen before like this.
If it were me I would remove the -ve battery terminal and both light units, check all the bulbs - type / location and fitment against the owners manual bulb table and replace any if necessary, refit the -ve battery terminal and recheck.
Also worth checking; the REE CU is under the passenger seat - make sure the carpet is dry behind/under the seat (just in case).......
Make sure the correct bulbs are fitted - Not just that the same type are fitted as removed - could have been incorrectly installed before but not necessarily triggered an issue - seen before like this.
If it were me I would remove the -ve battery terminal and both light units, check all the bulbs - type / location and fitment against the owners manual bulb table and replace any if necessary, refit the -ve battery terminal and recheck.
Also worth checking; the REE CU is under the passenger seat - make sure the carpet is dry behind/under the seat (just in case).......
Not on my 987, but with my e39 BMW the pins connecting to the bulb tarnished over time and needed bending back. Its been a while since I changed a bumb in my 987 (now I've jinxed it!) but if the pins aren't making proper connection then that might be the issue.
Otherwise do you have access to a multimeter? Might be worth checking that power is getting to the bulb if you know the bulb is fine?
Otherwise do you have access to a multimeter? Might be worth checking that power is getting to the bulb if you know the bulb is fine?
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