DTC Troubleshooting: P0845 (26-2)

DTC P0845:  Problem in 3rd Clutch Pressure Switch Circuit

NOTE: Record all freeze data before you troubleshoot.

1.Disconnect the 3rd clutch pressure switch.

2.Turn the ignition switch ON (II).

3.Measure the voltage between PCM connector terminal C10 and body ground.

 

Is there about 5 V?


YES - Go to 4.


NO - Check for short to ground in the wire between PCM connector terminal C10 and the 3rd clutch pressure switch. If wire is OK, check for loose terminal fit in the PCM connectors. If necessary, substitute a known-good  PCM and recheck.n

4.Measure the voltage between the 3rd clutch pressure switch connector terminal and body ground.

 

Is there about 5 V?


YES - Go to 5.


NO - Repair open in the wire between PCM connector terminal C10 and the 3rd clutch pressure switch.n


5.Turn the ignition switch OFF.

6.Measure the resistance between the 3rd clutch pressure switch connector terminal and body ground.

 

Is there 40 MW or more?


YES - Go to 7.


NO - Replace the 3rd clutch pressure switch.n

7.Connect the 3rd clutch pressure switch connector.

8.For 4WD model: Raise the vehicle, make sure it is securely supported, and allow the all four wheels to rotate freely.
For 2WD model: Raise the front of the vehicle, make sure it is securely supported, and allow the front wheels to rotate freely.

9.Start the engine. Shift into the [D] position, then turn the O/D switch off for driving with over-drive OFF mode.

10.Accelerate the vehicle until the speed exceeds 19 mph (30 km/h), then release the accelerator. Shift into the [N] positon, and return to the [D]; the transmission will shift to 3rd gear.

11.Drive the vehicle in 3rd gear for more than 5 seconds.

12.With driving in 3rd gear, measure the voltage between PCM connector terminal C10 and body ground.

 

Is there 0 V?


YES - Check for loose terminal fit in the PCM connectors. If necessary, substitute a known-good  PCM and recheck.n


NO - Replace the 3rd clutch pressure switch.n