Galant L4-1997cc 2.0L DOHC (1990)
Main Relay (Computer/Fuel System): Testing and Inspection
Non Trouble Code Components
Power Supply Circuit
Failure of the control relay could interrupt power supply to the fuel pump, injectors and ECU, resulting in start failure.
CAUTION: Use caution when connecting jumper wires to the relay. If the polarity is incorrectly connected, the relay will be damaged.
Fig. 1 Relay Test
COMPONENT TEST
1. Supply 12 VDC to relay terminals 8 (-) and 10 (+). Using a Voltmeter, check for Voltage between terminals 4 (+) and 8 (-) and between terminals
5 (+) and 8 (-). Refer to Fig. 1.
Voltage: ........................................................................................................................................................................................................ 12 VDC
