P0893

DTC P0893: Interlock Detection

DESCRIPTIONS OF MONITOR METHODS

When sudden deceleration (2.5 m/s2) exceeding the setting time is detected with combination as follows; Stoplight switch: correct, output shaft speed sensor: correct, hydraulic switch: incorrect.

MONITOR EXECUTION

- Continuous

MONITOR EXECUTION CONDITIONS (OTHER MONITOR AND SENSOR)

Other Monitor (There is no temporary DTC stored in memory for the item monitored below)

- Not applicable
Sensor (The sensor below is determined to be normal)

- Not applicable

LOGIC FLOW CHARTS (Monitor Sequence)





DTC SET CONDITIONS

Check Conditions

- Fluid pressure switch status combination: not designed combination

- Stoplight switch signal: OFF.
Judgement Criteria

- Deceleration: more than threshold value. (1.9 second)

OBD-II DRIVE CYCLE PATTERN

Start the engine, drive at 60 km/h (37.3 mph) or more for 15 minutes in total.

TROUBLESHOOTING HINTS (THE MOST LIKELY CAUSES FOR THIS CODE TO BE SET ARE:)

- Malfunction of the P0720: output shaft speed sensor system circuit

- Damaged harness or connector

- Malfunction of the P0743: lock-up and low-reverse brake linear solenoid valve system circuit

- Malfunction of the P0753: low clutch linear solenoid valve system circuit

- Malfunction of the P0758: 2-6 brake linear solenoid valve system circuit

- Malfunction of the P0763: 3-5 reverse clutch linear solenoid valve system circuit

- Malfunction of the P0768: high clutch linear solenoid valve system circuit

- Malfunction of the P1753: low clutch shift solenoid valve system circuit

- Malfunction of the P1758: low-reverse brake shift solenoid valve system circuit

- Malfunction of the P0846: 2-6 brake pressure switch system circuit

- Malfunction of the P0876: high clutch pressure switch system circuit

- Malfunction of the P0988: low-reverse brake pressure switch system circuit

DIAGNOSIS

STEP 1. Check the DTC.

Check if the following DTCs are set.

- P0720 output shaft speed sensor

- P0743 lock-up and low-reverse brake linear solenoid valve

- P0753 low clutch linear solenoid valve

- P0758 2-6 brake linear solenoid valve

- P0763 3-5 reverse clutch linear solenoid valve

- P0768 high clutch linear solenoid valve

- P1753 low clutch shift solenoid valve

- P1758 low-reverse brake shift solenoid valve

- P0846 2-6 brake pressure switch

- P0876 high clutch pressure switch

- P0988 low-reverse brake pressure switch

Q. Is the check result normal?

YES Go to Step 2.
NO Repair or replace the failure section.
STEP 2. Check TCM related to the solenoid, pressure switch and output shaft speed sensor, the A/T control solenoid valve assembly connector pin terminals, and the connection status.

Q. Is the check result normal?

YES Replace the TCM, and then go to Step 3.
NO Repair or replace the failure section.
STEP 3. Erase the DTC code, and drive the vehicle for a while.

Check that the normal code is displayed.

Q. Is the check result normal?

YES The procedure is complete.
NO Replace the transaxle assembly.