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HOMESERVICE MANUALSSUZUKI2005RENO EXREPAIR AND DIAGNOSIS (SINGLE PAGE)TRANSMISSIONAUTOMATIC TRANSAUTOMATIC TRANSMISSIONDIAGNOSTIC INFORMATION AND PROCEDURESDTC P1852 SOLENOID 1 OUTPUT OPENDIAGNOSTIC AIDS
2005 Suzuki Reno EX

Diagnostic Aids

2005 Suzuki Reno EXSECTION Diagnostic Aids
  • When DTC P1852 sets, the possible cause of fault could be solenoid 1.
DIAGNOSTIC PROCEDURE - DTC P1852

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 solenoid 1 ON/OFF.

Does the solenoid 1 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 3 and 12 of the transaxle wiring connector.

Is the resistance within the values shown?		 TFT 25Β°C (77Β°F) 6Ξ© Go to Step 7 Go to Step 4
4
  1. Remove the oil pan.
  2. Disconnect the wiring connector of solenoid 1.
  3. Measure the resistance between terminal 1 of solenoid 1 and terminal 12 of the transaxle wiring connector.
  4. Measure the resistance between terminal 2 of solenoid 1 and terminal 3 of the transaxle wiring connector.

Is the resistance within the values shown?		 0Ξ© Go to Step 6 Go to Step 5
5
  1. Repair the line (between terminal 1 and terminal 12) for an open.
  2. Repair the line (between terminal 2 and terminal 3) for an open.

Is the repair complete?		 - System OK -
6 Replace the solenoid 1.
Is the replacement complete?		 - System OK -
7
  1. Disconnect the transaxle wiring connector and TCM connector.
  2. Measure the resistance between terminal 3 of the transaxle wiring connector and terminal C8 of the TCM wiring connector.
  3. Measure the resistance between terminal 12 of the transaxle wiring connector and terminal A9 of the TCM wiring connector.

Is the resistance within the values shown?		 0Ξ© Go to Step 9 Go to Step 8
8 Repair the transaxle wiring harness for an open.
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 test 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.