Suzuki Ignis Service Manual page 3262

Rg413
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Step
3
Main Relay Circuit Check
1) Turn ignition switch to OFF position.
2) Check for fuse blow at main fuse (15 A). (See Fig. 1.)
3) If OK, measure voltage between "C64-15" wire terminal of
ECM connector and body ground.
Is voltage 10 – 14 V?
4
Main Relay Circuit Check
1) Remove ECM from vehicle body and connect connectors
to ECM.
2) Turn ignition switch to ON position.
3) Measure voltage between "C64-15" wire terminal of ECM
connector and body ground.
Is voltage 0 – 1 V?
5
ECM Ground Circuit Check
1) Turn ignition switch to OFF position.
2) Disconnect connectors from ECM.
3) Measure resistance between each "C63-1", "C64-1" and
"C64-2" wire terminals of ECM connector and body
ground.
Is resistance 1 Ω or less?
6
Main Relay Circuit Check
1) Disconnect connectors from ECM with ignition switch
turned OFF.
2) Using service wire, ground "C64-15" wire terminal of ECM
connector and measure voltage between each "G91-5"
and "G91-6" wire terminals of ECM connector and body
ground.
Is voltage 10 – 14 V?
7
Main Relay Circuit Check
1) Remove main relay from relay/fuse box. (See Fig. 2.)
2) Check for proper connection to main relay connector at
"BLK/YEL" and "BLK/RED" wire terminals.
3) If OK, measure resistance between each "G91-5" and
"G91-6" wire terminals of ECM connector and "BLK/RED"
wire terminal of main relay connector.
Is resistance 1Ω or less?
8
Main Relay Circuit Check
1) Remove main relay from relay/fuse box.
2) Measure voltage between "BLK/YEL" wire terminals of
main relay connector and body ground.
Is voltage 10 – 14 V?
Action
ENGINE GENERAL INFORMATION AND DIAGNOSIS 6-61
Yes
Go to Step 4.
Go to Step 6.
Substitute a
known-good ECM
and recheck.
Substitute a
known-good ECM
and recheck.
Go to Step 8.
Go to Step 9.
No
Go to Step 8.
Go to Step 5.
"BLK/ORN" or
"BLK" wire open
circuit or high
resistance circuit.
Go to Step 7.
"BLK/RED" wire
open circuit or
high resistance cir-
cuit.
"BLK/YEL" wire
circuit open.

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