Transmission Diagnosis

Diagnostic Chart:

Schematic:

Ignition voltage supplies power to operate the transaxle control module (TCM) and transaxle solenoids. The TCM monitors ignition voltage on both ignition 1 circuits. DTC P0562 sets when the TCM detects low ignition voltage when the engine is running.

DTC PARAMETERS
DTC P0562 will set if the TCM detects ignition voltage less than 8.68 volts when:
^ Engine speed is greater than 800 RPM
^ Trans. Protection Mode is OFF
^ The condition exists for 20 seconds

The TCM will command Trans. Protection Mode ON if this DTC is active.

This DTC will pass if ignition voltage remains between 9 volts and 18 volts for 20 seconds.

DTC P0562 is a type A DTC.

DIAGNOSTIC AIDS
Test the charging system. A weak generator or battery may cause DTC P0562 to set.

If the TCM has low voltage, the daytime running lamp (DRL) indicator lamp may flicker.

To locate an intermittent problem, use a Scan tool to monitor Ignition Voltage with ignition On, engine Off. Wiggling wires while watching for a change on Ignition Voltage may locate the area where an open or high resistance in the wiring could lie.

Clear DTCs in the TCM after repair is made to the charging system or wiring.