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HOMESERVICE MANUALSSUZUKI2005RENO EXREPAIR AND DIAGNOSISTRANSMISSIONAUTOMATIC TRANSAUTOMATIC TRANSMISSIONDIAGNOSTIC INFORMATION AND PROCEDURESDTC P1861 EDS 4 OUTPUT SHORTED TO GROUNDDIAGNOSTIC AIDS
2005 Suzuki Reno EX

Diagnostic Aids

2005 Suzuki Reno EXSECTION Diagnostic Aids
  • When DTC P1861 sets, the possible cause of fault could be EDS4 valve.
DIAGNOSTIC PROCEDURE - DTC P1861

Step Action Value(s) Yes No
1 Perform an On-Board Diagnostic (OBD II) System Check.
Is the check completed?		 - Go to Step 2 Go to "ON-BOARD DIAGNOSTIC (OBD II) SYSTEM CHECK :"
2
  1. Install the scan tool.
  2. Turn the ignition ON, with the engine OFF.
  3. Select "Actuating" on the scan tool.
  4. Actuate EDS 4 ON/OFF.

Does the EDS 4 change ON/OFF?		 ON/OFF Go to "DIAGNOSTIC AIDSΒ :" Go to Step 3
3
  1. Turn the ignition OFF.
  2. Disconnect the transaxle wiring connector.
  3. Measure the resistance between terminals 5 and 7 of the transaxle wiring connector.

Is the resistance within the values shown?		 TFT 25Β°C (77Β°F) 6 Ξ© Go to Step 7 Go to Step 4
4
  1. Remove the oil pan.
  2. Disconnect the wiring connector of EDS 4.
  3. Measure the resistance between terminal 2 of EDS 4 and ground.
  4. Measure the resistance between terminal 1 of EDS 4 and ground.

Is the resistance within the values shown?		 infinite Go to Step 6 Go to Step 5
5 Repair the internal line (EDS 4) for a short to ground.
Is the repair complete?		 - System OK -
6 Replace the EDS 4.
Is the replacement complete?		 - System OK -
7
  1. Disconnect the transaxle wiring connector and TCM connector.
  2. Measure the resistance between terminal 5 of the transaxle wiring connector and ground.
  3. Measure the resistance between terminal 7 of the transaxle wiring connector and ground.

Is the resistance within the values shown?		 infinite Go to Step 9 Go to Step 8
8 Repair the transaxle wiring harness for a short to ground.
Is the repair complete?		 - System OK -
9 Replace the TCM.
Is the replacement complete?		 - Go to Step 10 -
10
  1. After the repair, use a scan tool "clear info" function and road tests the vehicle.
  2. Review the "DTC info".

Has the last test failed or is the current DTC displayed?		 - Begin diagnosis again Repair verified exit DTC chart
RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.