PCM OBD1 Auto Transmission Trouble Codes

PCM Auto Transmission Trouble Codes and Information Flags

PCM Auto Transmission Trouble Codes

• Trouble Code 12 Diagnostic Check Only (Flash Trouble Code)
• Trouble Code 13 (1992-1994 Vehicles)
• Trouble Code 14 (1993-1994 Vehicles)
• Trouble Code 16 No 1st Gear
• Trouble Code 18 (1993-1994 Vehicles)
• Trouble Code 21 2nd Gear Stuck On
• Trouble Code 22 No 2nd Gear
• Trouble Code 23 No 3rd Gear
• Trouble Code 24 No 4th Gear
• Trouble Code 25 No TCC
• Trouble Code 26 TCC Stuck On
• Trouble Code 31 Transaxle Temperature Circuit Open (Cold)
• Trouble Code 32 Transaxle Temperature Circuit Grounded (Hot)
• Trouble Code 34 (1991 PERF [LLO], 1992-1994 Vehicles) ECM Communications Failed
• Trouble Code 35 No Turbine Speed Sensor Signal
• Trouble Code 36 Turbine Speed Sensor Signal Noise
• Trouble Code 41 No Vehicle Speed Sensor Signal
• Trouble Code 42 Vehicle Speed Sensor Signal Noise
• Trouble Code 43 (1994 Vehicles) Actuator Lost Power
• Trouble Code 43 (1993 Vehicles) Master Enble Relay Grounded/Open
• Trouble Code 44 (1993 Vehicles) Master Enable Relay Coil Shorted to Voltage
• Trouble Code 45 Selector Switch - No Data
• Trouble Code 46 Selector Switch - Undefined Data
• Trouble Code 48 (1991-1992 Vehicles) Hold Mode Voltage Low
• Trouble Code 49 (1991 PERF [LLO], 1992-1994 Vehicles) Selector Switch - Invalid Data
• Trouble Code 52 (1991-1992 Vehicles) Hold Mode Stuck On
• Trouble Code 53 (1991-1992 Vehicles) Hold Mode Stuck Off
• Trouble Code 54 A/D Error
• Trouble Code 55 Transaxle Temperature Resistor Failure
• Trouble Code 56 (1993-1994 Vehicles)
• Trouble Code 75 (1993-1994 Vehicles)
• Trouble Code 78 (1993-1994 Vehicles)

PCM Auto Transmission Information Flags

• Information Flag 13 (1991 Vehicles) Line Pressure High
• Information Flag 14 (1991-1992 Vehicles) Line Pressure Low
• Information Flag 15 Hot Lamp Illuminated
• Information Flag 18 (1991-1992 Vehicles) No Gears Available
• Information Flag 43 (1991-1992 Vehicles) Master Enable Relay Grounded/Open
• Information Flag 44 (1991-1992 Vehicles) Master Enable Relay Coil Shorted to Voltage
• Information Flag 47 PCM Communication Interrupt Failure
• Information Flag 51 Serial Link Data Invalid
• Information Flag 56 (1991-1992 Vehicles) Generic Field-Effect Transistor (FET) Driver Failure
• Information Flag 57 Non-Volatile Random Access Memory (RAM) Failure
• Information Flag 61 PCM Programmable Read-Only Memory (PROM) Failure
• Information Flag 62 PCM Interrupt Failure
• Information Flag 63 PCM Random Access Memory (RAM) Failure
• Information Flag 64 PCM Electrically Erasable/Programmable Read-Only Memory (EEPROM) Prom Failure
• Information Flag 65 Battery Voltage Out Of Range High Or Low
• Information Flag 66 (1991-1992 Vehicles) Clamp Circuit Shorted
• Information Flag 67 (1991-1992 Vehicles) Clamp Circuit Open
• Information Flag 68 Line Pressure Actuator Circuit Grounded/Open
• Information Flag 69 Line Pressure Actuator Circuit Shorted to Voltage
• Information Flag 71 2nd Gear Actuator Circuit Grounded/Open
• Information Flag 72 2nd Gear Actuator Circuit Shorted to Voltage
• Information Flag 73 3rd Gear Actuator Circuit Grounded/Open
• Information Flag 74 3rd Gear Actuator Circuit Shorted to Voltage
• Information Flag 75 (1991-1992 Vehicles) 3rd Gear Stuck On
• Information Flag 76 4th Gear Actuator Circuit Grounded/Open
• Information Flag 77 4th Gear Actuator Circuit Shorted to Voltage
• Information Flag 78 (1991-1992 Vehicles) 4th Gear Stuck On
• Information Flag 79 TCC Actuator Circuit Grounded/Open
• Information Flag 81 TCC Actuator Circuit Shorted to Voltage
• Information Flag 82 (1991 Base [LKO] Vehicles) Temperature Signal Unstable
• Information Flag 83 Temperature Signal Low
• Information Flag 84 Brake Switch Stuck Open
• Information Flag 85 Brake Switch Stuck Closed
• Information Flag 86 Engine Speed Signal Invalid
• Information Flag 87 (1991-1992 Vehicles) TCC Hold Circuit Grounded/Open
• Information Flag 88 (1991-1992 Vehicles) TCC Hold Circuit Shorted to Voltage
• Information Flag 89 (1991-1993 Vehicles) Master Enable Relay Stuck On
• Information Flag 91 (1991 Base [LKO] Vehicles) DLC Serial Communication Link Interrupt
• Information Flag 92 (1991-1992 Vehicles) Clamp Circuit Intermittent Fault
• Information Flag 93 (1991-1992 Vehicles) TCC Hold Circuit Intermittent Fault
• Information Flag 94 (1991-1993 Vehicles) Master Enable Circuit Intermittent Fault
• Information Flag 95 Line Pressure Actuator Circuit Intermittent Fault
• Information Flag 96 TCC Actuator Circuit Intermittent Fault
• Information Flag 97 2nd Gear Actuator Circuit Intermittent Fault
• Information Flag 98 3rd Gear Actuator Circuit Intermittent Fault
• Information Flag 99 4th Gear Actuator Circuit Intermittent Fault