With PCM Transmission Control

Diagnostic codes that cause the SERVICE ENGINE SOON telltale lamp to light.
13 Line Pressure High
14 Line Pressure Low
16 No 1st Gear
18 No Gears Available
21 2nd Gear Stuck On
22 No 2nd Gear
23 No 3rd Gear
24 No 4th Gear
25 No TCC
26 TCC Stuck On
31 Transaxle Temperature Circuit Open
32 Transaxle Temperature Circuit Grounded
34 ECM Communications Failed (1992 Vehicles)
35 No Turbine Speed Signal
36 Turbine Speed Signal Noise
41 No Vehicle Speed Sensor Signal
42 Vehicle Speed Signal Noise
43 Actuators Lost Power (1994 Vehicles)
43 Master Enable Relay (1993 Vehicles)
44 Master Enable Relay (1993 Vehicles)
45 Selector Switch - No Data
46 Selector Switch - Invalid Data
48 Hold Mode Voltage Low
49 Selector Error Signal (1992 Vehicles)
52 Hold Mode Stuck On
53 Hold Mode Stuck Off
54 A/D Error
55 Transaxle Temperature Resister Failure
56 Generic FET Driver Failure
75 3rd Gear Stuck On
78 4th Gear Stuck On