Code 82, Solenoid "A" Circuit Fault: Notes

The PCM/TCM continually monitors each circuit connected to the quad-driver for either low or high voltage, depending on the commanded state of the device connected to it. Code 82 will set if there is a fault detected on the shift solenoid "A" circuit, also referred to as 1-2 shift solenoid. For example, if shift solenoid "A" is commanded on by the PCM/TCM, then voltage on circuit should drop as soon as solenoid is grounded.

However, if voltage remains high for 2 seconds after the on command is given, Code 82 will set. The opposite is also true. If shift solenoid "A" is off, voltage on the circuit should be high. If voltage drops for .5 second or longer, Code 82 will set.

1. This test checks shift solenoid "A" and internal transmission wiring harness for short circuits.
2. This test checks for power, from the ignition through the fuse, to the shift solenoid.
3. This test checks circuit No. 1222 for short to ground.
4. This test checks ability of PCM/TCM to ground or control shift solenoid "A". If bidirectional scan tester is not available, solenoid may be activated by grounding ALDL test terminal "B" with ignition on and engine off.