Sentra L4-1597cc 1.6L DOHC MFI (GA16DE) (1991)
Fuel Pump Relay: Technical Service Bulletins
Fuel Pump Relay - Precaution
Classification:
EC93-017
Reference:
NTB93-177
Date:
November 29, 1993
APPLIED VEHICLE(S):
1991-1993 Sentra
SENTRA FUEL PUMP RELAY CAUTION
SERVICE INFORMATION
When servicing a customer's vehicle with any fuel pump incident, exercise caution when diagnosing/checking at the fuel pump relay.
1.
Note that the schematic on the fuel pump relay is rotated 90 degrees from the orientation of the fuel pump relay terminals in connector E19 (see
diagram shown):
3.
Exercise caution to ensure that the correct terminals are being probed at connector E19 during diagnosing/checking.
NOTE:
If terminals 2 or 3 (battery voltage) are connected to terminal 1, the ECM will become damaged, resulting in no fuel pump operation (no ground from
ECM on pin # 104).