Suzuki Vitara (LY) 2016-2017 · Service Manual M16A · Diagnostic Information and Procedures

DTC P0351 / P0352 / P0353 / P0354 / P2300 / P2301 / P2303 / P2304 / P2306 / P2307 / P2309 / P2310

Precautions: General safety (00)

DTC Detecting Condition and Trouble Area
DTC detecting condition Trouble area
P0351: Ignition Coil “A” Primary / Secondary Circuit
Ignition coil assembly No.1 and/or its circuit is open with engine running.
(3 D/C detection logic)
•Ignition coil assembly and/or its circuit
•ECM
P0352: Ignition Coil “B” Primary / Secondary Circuit
Ignition coil assembly No.2 and/or its circuit is open with engine running.
(3 D/C detection logic)
P0353: Ignition Coil “C” Primary / Secondary Circuit
Ignition coil assembly No.3 and/or its circuit is open with engine running.
(3 D/C detection logic)
P0354: Ignition Coil “D” Primary / Secondary Circuit
Ignition coil assembly No.4 and/or its circuit is open with engine running.
(3 D/C detection logic)
P2300: Ignition Coil “A” Primary Control Circuit Low
Ignition coil assembly No.1 drive circuit is shorted to ground with engine running.
(3 D/C detection logic)
P2301: Ignition Coil “A” Primary Control Circuit High
Ignition coil assembly No.1 drive circuit is shorted to power supply with engine running.
(3 D/C detection logic)
P2303: Ignition Coil “B” Primary Control Circuit Low
Ignition coil assembly No.2 drive circuit is shorted to ground with engine running.
(3 D/C detection logic)
P2304: Ignition Coil “B” Primary Control Circuit High
Ignition coil assembly No.2 drive circuit is shorted to power supply with engine running.
(3 D/C detection logic)
P2306: Ignition Coil “C” Primary Control Circuit Low
Ignition coil assembly No.3 drive circuit is shorted to ground with engine running.
(3 D/C detection logic)
P2307: Ignition Coil “C” Primary Control Circuit High
Ignition coil assembly No.3 drive circuit is shorted to power supply with engine running.
(3 D/C detection logic)
P2309: Ignition Coil “D” Primary Control Circuit Low
Ignition coil assembly No.4 drive circuit is shorted to ground with engine running.
(3 D/C detection logic)
P2310: Ignition Coil “D” Primary Control Circuit High
Ignition coil assembly No.4 drive circuit is shorted to power supply with engine running.
(3 D/C detection logic)
Circuit Diagram
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[A]: ECM connector (View: [a]) B3: Ignition coil assembly No.2 ground circuit D3: Ignition coil assembly No.4 ground circuit
A1: Ignition coil assembly No.1 power supply circuit C1: Ignition coil assembly No.3 power supply circuit 1. Ignition coil assembly No.1
A2: Ignition coil assembly No.1 drive circuit C2: Ignition coil assembly No.3 drive circuit 2. Ignition coil assembly No.2
A3: Ignition coil assembly No.1 ground circuit C3: Ignition coil assembly No.3 ground circuit 3. Ignition coil assembly No.3
B1: Ignition coil assembly No.2 power supply circuit D1: Ignition coil assembly No.4 power supply circuit 4. Ignition coil assembly No.4
B2: Ignition coil assembly No.2 drive circuit D2: Ignition coil assembly No.4 drive circuit 5. ECM
DTC Confirmation Procedure
NOTE:
Check that the following condition is met in this “DTC Confirmation Procedure”.
•Battery voltage > 8.5 V
1)Run engine at idle speed for 1 min.
DTC Troubleshooting
Step Action Yes No
1
Was “Engine and Emission Control System Check” performed?
Go to Step 2.
2
Ignition coil assembly power supply circuit check
1)With ignition “OFF”, disconnect connector from ignition coil assembly related to DTC.
2)Check for proper terminal connection to ignition coil assembly connector.
3)If connection is OK, set ignition “ON”.
4)Check that voltage between “A1” and “A3”, “B1” and “B3”, “C1” and “C3” or “D1” and “D3” is battery voltage.
Is check result OK?
Go to Step 4.
Go to Step 3.
3
Ignition coil assembly ground circuit check
1)Check that voltage between “A1”, “B1”, “C1” or “D1” and ground is battery voltage.
Is check result OK?
Repair “A3”, “B3”, “C3” or “D3” circuit.
Repair “A1”, “B1”, “C1” or “D1” circuit.
4
Ignition coil assembly drive circuit check
1)With ignition “OFF”, disconnect “C01” and “E01” connectors from ECM.
2)Check for proper terminal connections to “C01” and “E01” connectors.
3)If connections are OK, check the following points.
•Resistance of “A2”, “B2”, “C2” or “D2” circuit: less than 1 Ω
•Resistance between each of “A2”, “B2”, “C2” or “D2” circuit and ground: infinity
•Resistance between “A2” circuit terminal and other terminal at ignition coil connector: infinity
•Resistance between “B2” circuit terminal and other terminal at ignition coil connector: infinity
•Resistance between “C2” circuit terminal and other terminal at ignition coil connector: infinity
•Resistance between “D2” circuit terminal and other terminal at ignition coil connector: infinity
•Voltage of “A2”, “B2”, “C2” or “D2” circuit: approx. 0 V (When ignition is “ON”)

Is check result OK?
Go to Step 5.
Repair or replace defective wire harness.
5
DTC recheck
1)Replace ignition coil assembly related to DTC with normal ignition coil assembly. icon 
2)Perform “DTC Confirmation Procedure” and recheck DTC.
Is the same DTC still detected?
Replace ECM and recheck DTC. icon 
End.