DTC 82

DTC 82:

1-2 Shift Solenoid Circuit:

CIRCUIT DESCRIPTION:
The PCM/TCM continually monitors each circuit connected to the "quad driver" for either low or high voltage on the commanded state of the device connected. Code 82 will set if there is a fault detected on the 1-2 shift solenoid circuit. If 1-2 shift solenoid is commanded "ON" by the PCM/TCM, and voltage on the circuit should drop as the solenoid grounds.
If voltage remains high for 2 seconds after the "ON" command is given, then Code 82 will be set. If 1-2 shift solenoid is "OFF" and voltage on the circuit should be high, if voltage drops for 2 seconds or longer, Code 82 will be set.

TEST DESCRIPTION:
Number(s) below refer to circled number(s) on the diagnostic chart.

1. This test checks 1-2 shift solenoid and the internal transmission wiring harness for shorts.

2. This test checks for power to the shift solenoids from the ignition through the fuse.

3. This test checks CKT 1222 for a short to ground.

4. This test checks the PCM/TCM's ability to ground or control 1-2 shift solenoid.

DIAGNOSTIC AIDS:
Check all connections, especially at the transmission pass-thru connector.

- Intermittent Malfunctions