#
MALFUNCTION DETECTION FUNCTION

BHE050201026T03

## Malfunction Detection Function

• In the malfunction detection function, the TCM detects malfunctions in the automatic transmission while driving.

• When vehicle driving conditions correspond with a preset malfunction detection condition, the TCM determines that the automatic transmission has a malfunction and stores the corresponding DTC.

• When a malfunction is detected, stored DTCs can be retrieved using the WDS or equivalent connected to the DLC-2.

## DTC Table

×: Available

DTC No. | Condition | MIL | AT warning light illuminated | DC | Monitor item | Memory function
--- | --- | --- | --- | --- | --- | ---
P0705 | Transmission range (TR) switch circuit malfunction (short to power supply) | ON | YES | 2 | CCM | ×
P0706 | Transmission range (TR) switch circuit malfunction (open circuit/short to ground) | ON | YES | 2 | CCM | ×
P0707 | M range switch, up switch or down switch circuit malfunction (open circuit/short to ground) | OFF | YES | 1 | CCM | ×
P0708 | Steering shift switch circuit malfunction (open circuit/short to ground) | OFF | YES | 1 | CCM | ×
P0712 | Transmission fluid temperature (TFT) sensor circuit malfunction (short to ground) | ON | YES | 1 | CCM | ×
P0713 | Transmission fluid temperature (TFT) sensor circuit malfunction (open circuit/short to power supply) | ON | YES | 1 | CCM | ×
P0715 | Turbine sensor circuit malfunction | ON | YES | 1 | CCM | ×
P0720 | Vehicle speed sensor (VSS) malfunction (open circuit/short to ground) | ON | YES | 1 | CCM | ×
P0731 | Gear 1 incorrect (incorrect gear ratio detected) | OFF | NO | 1 | CCM | ×
P0732 | Gear 2 incorrect (incorrect gear ratio detected) | OFF | NO | 1 | CCM | ×
P0733 | Gear 3 incorrect (incorrect gear ratio detected) | OFF | NO | 1 | CCM | ×
P0734 | Gear 4 incorrect (incorrect gear ratio detected) | OFF | NO | 1 | CCM | ×
P0743 | Torque converter clutch (TCC) solenoid valve circuit malfunction (open circuit/short to ground or power supply) | ON | YES | 1 | CCM | ×
P0748 | Pressure control solenoid circuit malfunction (open circuit/short to ground or power supply) | OFF | YES | 1 | CCM | ×
P0753 | Shift solenoid A circuit malfunction (open circuit/short to ground or power supply) | ON | YES | 1 | CCM | ×
P0758 | Shift solenoid F circuit malfunction (open circuit/short to ground or power supply) | ON | YES | 1 | CCM | ×
P0763 | Shift solenoid B circuit malfunction (open circuit/short to ground or power supply) | ON | YES | 1 | CCM | ×
P0768 | Shift solenoid C circuit malfunction (open circuit/short to ground or power supply) | ON | YES | 1 | CCM | ×
P0841 | Oil pressure switch B circuit malfunction | OFF | YES | 2 | CCM | ×
P0846 | Oil pressure switch C circuit malfunction | OFF | YES | 2 | CCM | ×
P0871 | Oil pressure switch F circuit malfunction | OFF | YES | 2 | CCM | ×
P0960 | GND return circuit malfunction | ON | YES | 1 | CCM | ×
P1759 | 2-4 brake fail-safe valve malfunction | OFF | YES | 2 | CCM | ×
P1764 | Low and reverse brake fail-safe valve malfunction | OFF | YES | 2 | CCM | ×
U0073 | CAN bus off | OFF | NO | 1 | CCM | ×
U0100 | TCM cannot receive any signals from PCM | ON | YES | 1 | CCM | ×