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Engine Controls - System/component Tests: Overview Toyota Tercel L50

Testing & Diagnostics 1 illustration ~184 words

Fuel Pump Resistance & Operation

  1. Disconnect electrical connector for fuel pump. See «FUEL PUMP ELECTRICAL CONNECTOR LOCATION»(ref-21636-S06634245012001010300000) table. FUEL PUMP ELECTRICAL CONNECTOR LOCATION Application Connector Location Tercel Below Rear Seat
  2. To check fuel pump resistance, using ohmmeter, measure fuel pump resistance between specified terminals on connector or fuel pump. (Scheme 8) Replace fuel pump if resistance is not within specification. See «FUEL PUMP RESISTANCE»(ref-21636-S04195287832001010300000) Ohms @ 68°F (20°C) table. FUEL PUMP RESISTANCE - Ohms @ 68°F (20°C) Application Ohms Tercel.2-3.0 CAUTION: When checking fuel pump operation, DO NOT apply battery voltage to fuel pump for more than 10 seconds or fuel pump may be damaged. When checking fuel pump operation, keep fuel pump away from battery as far as possible.
  3. To check fuel pump operation, apply battery voltage and ground on specified terminals on connector or fuel pump. (Scheme 8) DO NOT apply battery voltage to fuel pump for more than 10 seconds. Keep fuel pump away from battery as far as possible. Replace fuel pump if fuel pump fails to operate.

Scheme 8

Scheme 8
Scheme 8

See also:
• ADJUSTMENTS

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