C2310

HYBRID TRANSMISSION / TRANSAXLE: ELECTRONIC SHIFT LEVER SYSTEM: C2310: Open or Short Circuit in BATT

DTC C2310 - Open or Short Circuit in BATT

DESCRIPTION

The auxiliary battery voltage is constantly applied to terminal BATT. The terminal BATT voltage is used to power the transmission control ECU memory. The transmission control ECU outputs this DTC when it detects a malfunction related to terminal BATT.





HINT: When there is an open or short in the BATT circuit, information on the actuator position ("P position" or "non-P position") stored in the ECU is cleared every time the power switch is turned OFF. Therefore, the ECU works to recognize the position each time the power switch is turned ON (IG). As a result, the time from when the power switch is turned ON (IG) until "READY ON" is indicated may become longer than normal.

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. INSPECT FUSE (P CON MAIN)




(a) Remove the P CON MAIN fuse from the engine room relay block.
(b) Measure the resistance of the fuse.
Standard resistance:
Below 1 Ohms
NG -- INSPECT FOR SHORT IN ALL COMPONENTS CONNECTED TO FUSE AND REPAIR OR REPLACE THEM IF NEEDED, AND REPLACE FUSE
OK -- Continue to next step.

2. READ VALUE USING TECHSTREAM (BATT VOLTAGE)
(a) Check the Data List for proper functioning of the transmission control ECU.

Transmission control ECU





Standard voltage:
9 to 14 V
OK -- REPLACE TRANSMISSION CONTROL ECU
NG -- Continue to next step.

3. CHECK WIRE HARNESS (TRANSMISSION CONTROL ECU - P CON MAIN FUSE)




(a) Disconnect the T4 ECU connector.
(b) Remove the P CON MAIN fuse from the engine room relay block.
(c) Measure the resistance of the wire harness side connectors.
Standard resistance:






NG -- REPAIR OR REPLACE HARNESS AND CONNECTOR
OK -- REPAIR OR REPLACE HARNESS AND CONNECTOR (P CON MAIN FUSE - BATTERY)