geline
Joined: 05 May 2006
Posts: 90
Location: Philippines
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 Posted: Sat May 13, 2006 11:56 am Post subject: Troubleshooting: Finding a Short Circuit |
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Here's a troubleshooting tip on finding a short circuit. Hope it helps!
Finding A Short Circuit
(a) Remove the blown fuse and disconnect all loads of the fuse.
(b) Connect a test light in place of the fuse.
(c) Establish conditions in which the test light comes on.
Example:
A- Ignition SW ON
B- Ignition SW and SW 1 ON
C- Ignition SW, SW 1 and Relay ON (Connect the Relay) and SW 2 OFF (or Disconnect SW 2)
(d) Disconnect and reconnect the connectors while watching the test light.
The short lies between the connector where the test light stays lit and the connector where the light goes out.
(e) Find the exact location of the short by lightly shaking the problem wire along the body.
CAUTION:
Do not open the cover or the case of the ECU and various computer unless absolutely necessary. (If the IC terminals are touched, the IC may be destroyed by static electricity.)
For diagram illustration and more details, visit
http://www.alldatadiy.com/alldata/AFI~G~C21823~R0~OD~N/0/41746505/41746506/41746536/41746537/34853741/34869956/14411285/114470812/114470866 |
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