Operation CHARM: Car repair manuals for everyone.

PCM Automatic Transmission

Trouble Code 12 Diagnostic Check Only (Flash Trouble Code)

Trouble Code 13 (1992-1994 Vehicles)
Information Flag 13 (1991 Vehicles) Line Pressure High

Trouble Code 14 (1993-1994 Vehicles)
Information Flag 14 (1991-1992 Vehicles) Line Pressure Low

Information Flag 15 Hot Lamp Illuminated

Trouble Code 16 No 1st Gear

Trouble Code 18 (1993-1994 Vehicles)
Information Flag 18 (1991-1992 Vehicles) No Gears Available

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 Transaxie Temperature Circuit Open (Cold)

Trouble Code 32 Transaxie 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
Information Flag 43 (1991-1992 Vehicles) Master Enable Relay Grounded/Open

Trouble Code 44 (1993 Vehicles) Master Enable Relay Coil Shorted to Voltage
Information Flag 44 (1991-1992 Vehicles) Master Enable Relay Coil Shorted to Voltage

Trouble Code 45 Selector Switch - No Data

Trouble Code 46 Selector Switch - Undefined Data

Information Flag 47 PCM Communication Interrupt Failure

Trouble Code 48 (1991-1992 Vehicles) Hold Mode Voltage Low

Trouble Code 49 (1991 PERF [LLO], 1992-1994 Vehicles) Selector Switch - Invalid Data

Information Flag 51 Serial Link Data Invalid

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)
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

Trouble Code 75 (1993-1994 Vehicles)
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

Trouble Code 78 (1993-1994 Vehicles)
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