Code 32?

[musqlar55]

Showing code 21 and code 32. Usually code 21 lasts a few days. Now is always showing and code 32 is showing. What does it mean and what do I do? Thanks. Doesn't show any of the symptoms I read up on. Idle is even and quiet.

[NAJ]

Code 21 is Oxygen Sensor Circuit
Code 32 is Power Loss Lamp Circuit

I would start by looking at the LM and its connectors for corrosion/loose or damaged wiring.

Code 21
Without a scanner you cannot see if the controller is seeing a signal during diagnostics.
Use an ohmmeter to check continuity from the O2 connector to cavity # 18 of the Blue LM connector and then check the circuit for a short to ground.
If the wiring checks ok replace the O2.
If problem persists replace the LM.
(Be sure there are no issues with the terminals/connector at the LM)

Code 32
Disconnect the Red LM connector.
Turn the key on...
If the Power Loss Lamp is on repair shorted wire from Cavity #4 of the Red LM connector to the Power Loss Lamp.
If the lamp is off turn the key on and ground Cavity #4 in the Red LM connector.
If the lamp does not illuminate repair the open circuit from Cavity #4 to the Power Loss Lamp.
If the lamp illuminates replace the LM.
(Be sure there are no issues with the terminals/connector at the LM)

[NAJ]

As per your PM.
Here is what my info tells me....

1985
Code 32 Power Loss Lamp Circuit
Code 34 EGR Solenoid Circuit (Turbo Only)
1986
Code 32 NONE
Code 34 EGR Solenoid Circuit (Turbo Only)
1987
Code 31 Purge/EGR Solenoid Circuit
Code 32 NONE
1988
Code 32 EGR Solenoid Circuit (California Only)
1989/1990
Code 32 EGR Circuit