View Single Post
  #8  
Old 08-26-2018, 11:06 AM
Alec300SD Alec300SD is online now
Registered User
 
Join Date: Nov 2013
Location: San Mateo, CA
Posts: 1,154
Quote:
Originally Posted by gregp1962 View Post
Which is the most likely component in circuit #14 that is likely to blow this 16a fuse?

back-up lamp
- warning monitor term. 8
- emission control,
- horn,
- overload protection (autom. transmission, relay auxiliary fan term. 86, control unit/water pump/heating water valve for climate control system)
It could be arced over/pitted contacts on the reverse relay located inside the neutral safety switch.

The reverse relay gets activated every time the car is running (when you shift into or out of park).
The contacts wear and eventually lead to failure of the # 14 fuse.

To test, simply remove the backup up bulbs and see if cures the issue.
If that cures the issue then replace the neutral safety switch, or continue driving without backup lights..
__________________
78 W116 300SD 'Desert Rose' new as of 01/26/2014
79 W116 300SD 'Stormcloud' RIP 04/11/2022
Reply With Quote