12100-90J01-050 Suzuki PISTON SET (OS:0.50)

Table 1
Diagnostic Trouble Codes for the Water In Fuel Sensor    
CDL Code     Description     Notes    
3547-3     Water in Fuel System Switch : Voltage Above Normal     The ECM detects the following conditions:
An open circuit in the Water-In-Fuel (WIF) sensor circuit. The ECM has been powered for less than 5 seconds.
The warning lamp will stay on when the "indicator lamp self check" has been completed. The ECM will disable the function to detect water in fuel while the code is active.    For an E232-1 or an E232-2 diagnostic code, refer to Troubleshooting, "Fuel Contains Water" before returning to this procedure.Water-in-Fuel Sensor OperationThe WIF sensor is a normally open sensor. During normal operation, there will be no signal sent from the WIF sensor to the ECM. If water is detected in the fuel, the sensor will send a signal to the ECM. If the signal remains constant for 45 seconds, an E232-1 diagnostic code will become active. If the E232-1 diagnostic code has been active for 60 minutes, an E232-2 diagnostic code will become active. This diagnostic code can also be caused by a short in the WIF sensor circuit.
Illustration 1 g02481077
Schematic for the WIF sensor
Illustration 2 g02481079
Pin locations on the P1 connector for the WIF sensor (56) WIF sensor signal
Illustration 3 g02464336
View of the connector for the WIF sensor (1) Signal (2) Ground (3) 24 VDC supplyTest Step 1. Inspect Electrical Connectors And Wiring
Turn the keyswitch to the OFF position.
Thoroughly inspect the connector for the WIF sensor and the P1/J1 ECM connector. Refer to Troubleshooting, "Electrical Connectors - Inspect"
Perform a 45 N (10 lb) pull test on each of the wires that are associated with the WIF sensor.
Check the screws for the ECM connector for the correct torque of 6 N m (53 lb in).
Check the harness for abrasions, for pinch points, and for corrosion.Expected Result:All connectors, pins, and sockets are correctly connected. The harness is free of corrosion, of abrasion, and of pinch points.Results:
The connectors and wiring appear to be OK - Proceed to Test Step 2.
There is a fault in the connectors and/or wiring. - Repair: Repair the connectors or wiring and/or replace the connectors or wiring. Ensure that all of the seals are correctly installed and ensure that the connectors are correctly connected.Use the electronic service tool in order to clear all logged diagnostic codes and then verify that the repair eliminates the fault.STOPTest Step 2. Check for Active Diagnostic Codes
Connect the electronic service tool to the diagnostic connector.
Turn the keyswitch to the ON position.
Wait for at least 1 minute.
Monitor the active diagnostic code screen on the electronic service tool. Check and record any active diagnostic codes.Expected Result:A 3547-3 diagnostic code is active at this time.Note: For an E232-1 or an E232-2 diagnostic code, refer to Troubleshooting, "Fuel Contains Water" before continuing with this procedure.Results:
One of the preceding diagnostic codes is active at this time. - Proceed to Test Step 3.
None of the preceding diagnostic codes are active at this time. - The fault may be intermittent.Repair: Refer to Troubleshooting, "Electrical Connectors - Inspect" to identify intermittent faults.STOPTest Step 3. Check the Supply Voltage at the Sensor Connector
Turn the keyswitch to the OFF position.
Disconnect the WIF sensor from the harness.
Turn the keyswitch to the ON position.
Measure the voltage between pin 2 and pin 3 on the harness connector for the WIF sensor.Expected Result:The measured voltage should be approximately 24 VDC.Results:
OK - The voltage is within the expected range. Reconnect the WIF sensor to the harness. Proceed to Test Step 4.
Not OK - The voltage is not within the expected range. The fault is in the 24 VDC supply wire or the ground wire.Repair: Repair the faulty wiring or replace the faulty wiring.Use the electronic service tool to clear all logged diagnostic codes and verify that the repair eliminates the fault.STOPTest Step 4. Create an Open Circuit at the Sensor Connector
Turn the keyswitch to the OFF position.
Disconnect the WIF sensor from the harness.
Turn the keyswitch to the ON position. Wait for at least 1 minute.
Monitor the active diagnostic code screen on the electronic service tool. Check and record any active diagnostic codes.Results:
An E232-1 or an E232-2 diagnostic code was active with the WIF sensor connected. The diagnostic code disappears after disconnecting the WIF sensor. - There is a short in the WIF sensor.Repair: Perform the following repair:Note: Ensure that the troubleshooting procedure in Troubleshooting, "Fuel Contains Water" has been carried out before performing this repair.
Install a replacement sensor. Refer to Disassembly and Assembly, "Water Separator and Fuel Filter (Primary) - Remove and Install" for the correct procedure.
Use the electronic service tool to clear all logged diagnostic codes and verify that the repair eliminates the fault.STOP
The E232-1 or E232-2 diagnostic code is still active with the WIF sensor disconnected. - The WIF sensor is OK. Proceed to Test Step 5.Test Step 5. Bypass the Signal Wire for the WIF Sensor
Turn the keyswitch to the OFF position.
Disconnect the WIF sensor from the harness. Disconnect the P1 connector.
Remove the wire from terminal 1 on the harness connector fro the WIF sensor. Remove the wire from P1:56.
Fabricate a jumper wire that is long enough to reach from the WIF sensor to the ECM.
Insert one end of the jumper wire into terminal 1 on the harness connector for the WIF sensor. Insert the other end of the jumper wire into P1:56.
Reconnect the WIF sensor to the harness. Reconnect the P1 connector.
Turn the keyswitch to the ON position. Wait for at least 1 minute.
Monitor the active diagnostic code screen on the electronic service tool. Check and record any active diagnostic codes.Expected Result:There are no active diagnostic codes for the WIF sensor with the bypass installed.Results:
OK - The diagnostic code disappears with the bypass installed. The fault is in the signal wire between the WIF sensor and the ECM.Repair: Repair the faulty wiring or replace the faulty wiring.Use the electronic service tool to clear all logged diagnostic codes and verify that the repair eliminates the fault.STOP
Not OK - The diagnostic code is