Suzuki Baleno Manual page 1711

B-1 FUEL PUMP AND ITS CIRCUIT CHECK
Is fuel pump heard to operate 2 seconds after
ignition switch ON?
1) Remove fuel pump relay from relay box.
2) Using service wire, connect two terminals of
relay box as shown in figure.
CAUTION:
Check to make sure that connection is
made between correct terminals.
Wrong connection can cause damage to
ECM, wire harness, etc.
Is fuel pump heard to operate at ignition switch
ON?
Check fuel pump relay referring to "FUEL PUMP
RELAY" in this section.
Is it in good condition?
Poor relay coupler connection, "B/W" wire or "Y/Bl"
wire open or poor A7 connection. If wire and con-
nection are OK, substitute a known-good ECM
(PCM) and recheck.
NOTE:
Before substituting a known-good ECM (PCM),
check to make sure that resistance of coil in
relay is as specified.
ELECTRONIC FUEL INJECTION SYSTEM (G13/G16 ENGINE WITHOUT WU TWC) 6E1-47
NO
YES
YES
1. Fuel pump relay coupler
2. Service wire
NO
"R/B" or "P" wire open, poor fuel pump
coupler connection or faulty fuel pump.
NO
Faulty fuel pump relay.
1. ECM (PCM)
2. ECM (PCM) coupler
3. Fuel pump relay
4. Fuel pump
5. Main relay
YES
Fuel pump circuit
in good condition.