Suzuki Liana RH418, Supplementary Service Manual

Page: 117 / 371

Engine General Information and Diagnosis: 1A-104
Power Steering Pressure (PSP) Switch Signal Circuit Check
S3RH0B1104053
Wiring Diagram
11 Check wire circuit
1) Turn ON ignition switch.
2) Check voltage between “G04-3” terminal wire and
vehicle body ground.
Is voltage 0 V?
Go to Step 12. “GRN/RED” wire
shorted to power supply
circuit.
12 Check radiator fan control relay No.2 and No.3
1) Check radiator fan control relay No.2 and No.3, referring
to “Radiator Fan Relay No.1, No.2 and No.3 Inspection
in Section 1C in related manual”.
Is result in good condition?
“GRN/RED” wire open
circuit. Replace relay.
13 Check radiator fan control No.2 and No.3
1) Connect connectors to ECM with ignition switch turned
OFF.
2) Run engine at ECT is over 102
°
C, 216
°
F.
3) Measure voltage between vehicle body ground and
“G04-3” terminal wire.
Is voltage lower 1.5 V?
Radiator cooling fan
control circuit is in good
condition. Faulty ECM.
Step Action Yes No
C41 (31P) G04 (24P) G03 (17P)
1 2 3 4 5 6 7 8 9
10 11 12 13 14 15 16 17 18 19 20 21
22 23 24 25 26 28 27 29 30 31
5 6 1 2 3 4 5 6 7
11 12 9 10 11 13 12 14 15 16
16 17
1 2
7 8
13 14
3 4
9 10
15
17 18
8
19 20 21 22 23 24
YEL C41-5
12V
ECM
1
I2RH0B110088-01
1. Power steering pressure switch