Sentra Sedan L4-1597cc 1.6L SOHC (E16S) (1986)
Improperly routed or improperly clamped harness can become pinched during accessory installation. Vehicle vibration can aggravate a harness which is
routed along a bracket or near a screw behind or below the dash.
There are several reasons a vehicle or engine vibration could cause an electrical complaint. Some of the things to check for are:
Connectors which are inaccessible for diagnosis probing.
Connectors which may not fully be seated.
Wiring harness which are not long enough and are being stressed during engine vibrations or rocking.
Wires laying across brackets or moving components.
Loose dirty or corroded ground wires.
Wires routed too close to hot components.
To inspect components underhood, start by verifying the integrity of ground connections. (Refer to the GROUND INSPECTION described later.) Once
you have assured the system is properly grounded check for loose connections by gently shaking the wiring or component as previously explained. Using
the wiring diagrams in the service manual, inspect the wiring for continuity.
Under Seating Area's
If a harness is not clamped properly or has too much slack, vehicle vibration could cause the wiring to become pinched by seat components such as slide
guides. If the wiring runs under seating areas inspect wiring routing for possible damage or pinching.
If owner indicates the problem occurs during hot weather or after the car has sat for a short period of time, you will want to check for a heat sensitive