AA80F Automatic Transmission

AA80F AUTOMATIC TRANSMISSION: AUTOMATIC TRANSMISSION SYSTEM: P0560: System Voltage
P0560 - System Voltage

DESCRIPTION

The battery supplies electricity to the TCM even when the engine switch is off. This power allows the TCM to store data such as DTC history, freeze frame data and fuel trim values. If the battery voltage falls below a minimum level, the stored TCM data is cleared and the TCM determines that there is a malfunction in the power supply circuit. When the engine is next started, the TCM will illuminate the MIL and store the DTC.

HINT
If DTC P0560 is stored, the TCM does not store other DTCs.

MONITOR STRATEGY

TYPICAL ENABLING CONDITIONS

TYPICAL MALFUNCTION THRESHOLDS

WIRING DIAGRAM

INSPECTION PROCEDURE

NOTICE:
Perform the universal trip to clear permanent DTCs AA80F Automatic Transmission System.

PROCEDURE

1. CHECK TCM (POWER SOURCE, GROUND)

(a) Disconnect the A12 and E5 TCM connectors.

(b) Measure the voltage according to the value(s) in the table below.

Standard Voltage:

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR (TCM - BATTERY, BODY GROUND)
OK -- Continue to next step.

2. REPLACE TCM

(a) Replace the TCM Removal.

NEXT -- PERFORM A/T CODE REGISTRATION Registration