P1845
DTC P1845 ATF PRESSURE SWITCH 5Description
Fail-safe function to detect direct clutch solenoid valve condition.
CONSULT-II Reference Value:
On Board Diagnosis Logic
^ This is not an OBD-II self-diagnostic item.
^ Diagnostic trouble code P1845 ATF PRES SW 5/CIRC with CONSULT-II is detected when TCM detects that actual gear ratio is normal, and relation between gear position and condition of ATF pressure switch 5 is irregular during depressing accelerator pedal. (Other than during shift change)
Possible Cause
^ ATF pressure switch 5
^ Harness or connectors
(Switch circuit is open or shorted.)
DTC Confirmation Procedure
CAUTION: Always drive vehicle at a safe speed.
NOTE: If DTC Confirmation Procedure has been previously performed, always turn ignition switch OFF and wait at least 10 seconds before performing the next test.
After the repair, perform the following procedure to confirm the malfunction is eliminated.
WITH CONSULT-II
1. Start engine.
2. Accelerate vehicle to maintain the following conditions.
ACCELE POSI: 1.5/8 - 2.0/8
SLCT LVR POSI: D position
GEAR: 1 -> 2 (D/C ON/OFF)
Driving location: Driving the vehicle uphill (increased engine load) will help maintain the driving conditions required for this test.
3. Perform step 2 again.
4. Turn ignition switch OFF, then perform step 1 to 3 again.
5. Check SELF-DIAG RESULTS mode for A/T with CONSULT-II.
If DTC (P1845) is detected, go to AT-176, "Diagnostic Procedure".
If DTC (P1762) is detected, go to AT-155, "Diagnostic Procedure". P1762
Diagnostic Procedure
1. CHECK INPUT SIGNAL
With CONSULT-II
1. Start engine.
2. Select ECU INPUT SIGNALS or MAIN SIGNALS in DATA MONITOR mode for A/T with CONSULT-II.
3. Drive vehicle in the D position (1st -> 2nd gear), and confirm the ON/OFF actuation of the ATF PRES SW 5.
OK or NG
OK >> GO TO 4.
NG >> GO TO 2.
2. CHECK TCM POWER SUPPLY AND GROUND CIRCUIT
Check TCM power supply and ground circuit.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace damaged parts.
3. DETECT MALFUNCTIONING ITEM
Check the following.
^ A/T assembly harness connector pin terminals for damage or loose connection with harness connector.
OK or NG
OK >> Replace the control valve with TCM.
NG >> Repair or replace damaged parts.
4. CHECK DTC
Perform AT-175, DTC Confirmation Procedure".
OK or NG
OK >> INSPECTION END
NG >> GO TO 2.