Suzuki Liana RH418, Supplementary Service Manual

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1A-87 Engine General Information and Diagnosis:
2 Check fuel pump for operation
1) Remove fuel pump relay from relay box with ignition
switch turned OFF.
2) Check for proper connection to fuel pump relay at each
terminals.
3) If it is OK, using service wire (1), connect terminals
“BLK/RED” wire and “PNK” wire of relay connector.
Is fuel pump heard to operate at ignition switch ON?
Go to Step 3. “PNK”, “BLK” or “BLK/
RED” circuit open or
fuel pump malfunction.
3 Check fuel pump relay for operation
1) Check resistance between each two terminals of fuel
pump relay.
Fuel pump relay resistance
Between terminals “c” and “d”: Infinity
Between terminals “a” and “b”: 56 – 146
Ω
2) Check that there is continuity between terminals “c” and
“d” when battery is connected to terminals “a” and “b”.
Is fuel pump relay in good condition?
“BRN” circuit open or
poor “C41-24”
connection.
If wire and connection
are OK, substitute a
known-good ECM and
recheck. Replace fuel pump
relay.
Step Action Yes No
I2RH0B110080-01
I2RH0B110081-01