Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET1995ASTRO VAN CARGO, RWDREPAIR AND DIAGNOSIS (SINGLE PAGE)QUICK LOOKUPSDTC INDEXAUTOMATIC TRANSMISSION DTCS
1995 Chevrolet Astro Van Cargo, RWD
Automatic Transmission DTCS
1995 Chevrolet Astro Van Cargo, RWDSECTION Automatic Transmission DTCS
AUTOMATIC TRANSMISSION DTCS
| OEM Code | Description |
|---|---|
| 14 | CTS SIGNAL VOLTAGE LOW (HIGH TEMPERATURE INDICATED) |
| 15 | CTS SIGNAL VOLTAGE HIGH (LOW TEMPERATURE INDICATED) |
| 21 | THROTTLE POSITION SENSOR SIGNAL VOLTAGE HIGH |
| 22 | THROTTLE POSITION SENSOR SIGNAL VOLTAGE LOW |
| 28 | TRANS. RANGE PRESSURE SWITCH - 3.4L "F" BODY, 4.3L & 5.7L "B", "D", "F" & "Y" BODIES |
| 37 | TCC BRAKE SWITCH ERROR - 3.4L "F" BODY, 4.3L & 5.7L "B", "D", "F" & "Y" BODIES |
| 38 | BRAKE SWITCH ERROR - 4.3L & 5.7L "B/D/F/Y" BODIES |
| 53 | SYSTEM VOLTAGE HIGH - 3.4L "F" BODY, 4.3L & 5.7L "B", "D", "F" & "Y" BODIES |
| 58 | TRANS. TEMP. SENSOR HIGH - 3.4L "F" BODY, 4.3L & 5.7L "B", "D", "F" & "Y" BODIES |
| 59 | TRANS. TEMPERATURE SENSOR LOW TEMPERATURE - 3.4L "F" BODY, 4.3L & 5.7L "B", "D", "F" & "Y" BODIES |
| 72 | VEHICLE SPEED SENSOR LOSS - 3.4L "F" BODY, 4.3L & 5.7L "B", "D" & "F" BODIES |
| 72 | VEHICLE SPEED SENSOR LOSS - 5.7L "Y" BODY |
| 73 | PRESSURE CONTROL SOLENOID - 4.3L/5.7L "B/D/F/Y" BODIES |
| 74 | TRACTION CONTROL VOLTAGE LOW - 5.7L "D/F/Y" BODIES |
| 75 | TRANS. VOLTAGE LOW - 4.3/5.7L "B/D/F/Y" BODIES |
| 79 | TRANSMISSION FLUID OVERTEMP - 3.4L "F" BODY, 4.3L & 5.7L "B", "D", "F" & "Y" BODIES |
| 80 | TRANSMISSION COMPONENT SLIPPING - 3.4L "F" BODY |
| 81 | 2-3 SHIFT SOLENOID - 4.3L & 5.7L "B/D/F/Y" BODIES |
| 82 | 1-2 SHIFT SOLENOID - 4.3L & 5.7L "B/D/F/Y" BODIES |
| 83 | TCC PWM SOLENOID - 4.3L & 5.7L "B/D/F/Y" BODIES |
| 84 | 3-2 CONTROL SOLENOID - 4.3L & 5.7L "B/D/F/Y" BODIES |
| 85 | TCC STUCK ON - 4.3L & 5.7L "B", "D", "F" & "Y" BODIES |
| 92 | TCC SOLENOID CIRCUIT - 3.4L "F" BODY, 4.3L & 5.7L "B", "D", "F" & "Y" BODIES |
| 93 | PRESSURE CONTROL SOLENOID - 3.4L "F" BODY |
| 96 | PRESSURE CONTROL SOLENOID - 3.4L "F" BODY |
DIAGNOSTIC CHARTS - LIGHT TRUCKS & VANS - GASOLINE EXCEPT "S" & "T" SERIES 4.3L VIN W
| OEM Code | Description |
|---|---|
| 14 | COOLANT TEMPERATURE SENSOR SIGNAL VOLTAGE LOW |
| 15 | COOLANT TEMPERATURE SENSOR SIGNAL VOLTAGE HIGH |
| 21 | TPS SIGNAL VOLTAGE HIGH |
| 22 | TPS SIGNAL VOLTAGE LOW |
| 24 | VEHICLE SPEED SENSOR TRANSMISSION OUTPUT SIGNAL |
| 28 | TRANS. RANGE PRESSURE SWITCH |
| 37 | TCC BRAKE SWITCH ON/OFF |
| 38 | TCC BRAKE SWITCH ON/OFF |
| 52 | SYSTEM VOLTAGE HIGH |
| 53 | SYSTEM VOLTAGE HIGH |
| 58 | TRANS. FLUID TEMP. HIGH |
| 59 | TRANS. FLUID TEMP. LOW |
| 66 | 3-2 CONTROL SOLENOID CIRCUIT FAULT |
| 67 | TCC SOLENOID CIRCUIT CHECK |
| 69 | TORQUE CONVERTER CLUTCH STUCK ON |
| 72 | VSS CIRCUIT LOSS TRANSMISSION OUTPUT SIGNAL |
| 73 | PRESSURE CONTROL SOLENOID (CURRENT ERROR) |
| 75 | SYSTEM VOLTAGE LOW |
| 79 | TRANS. FLUID TEMPERATURE HIGH |
| 81 | TRANS. 2-3 ERROR |
| 82 | TRANS. 1-2 ERROR |
| 83 | TCC SOLENOID CIRCUIT FAULT |
DIAGNOSTIC CHARTS - LIGHT TRUCKS & VANS - DIESEL
| OEM Code | Description |
|---|---|
| 14 | ECT SENSOR CKT LOW (HIGH TEMPERATURE INDICATED) |
| 15 | ECT SENSOR CKT HIGH (LOW TEMPERATURE INDICATED) |
| 24 | VSS CIRCUIT LOW (TRANS OUTPUT SPEED SIGNAL) |
| 28 | TRANS. RANGE PRESSURE SWITCH CIRCUIT FAULT |
| 37 | TCC BRAKE SWITCH STUCK ON/OFF |
| 38 | TCC BRAKE SWITCH STUCK ON/OFF |
| 52 | SYSTEM VOLTAGE HIGH TOO LONG |
| 53 | SYSTEM VOLTAGE HIGH TOO LONG |
| 58 | TRANS. FLUID TEMP. SENSOR CK LOW HIGH TEMPERATURE INDICATED) |
| 59 | TRANS. FLUID TEMP. SENSOR CKT HIGH LOW TEMPERATURE INDICATED) |
| 66 | 3-2 CONTROL SOLENOID CIRCUIT FAULT |
| 67 | TCC SOLENOID CIRCUIT FAULT |
| 69 | TCC STUCK ON |
| 72 | VEHICLE SPEED SENSOR CIRCUIT LOSS (TRANS OUTPUT SPEED SIGNAL) |
| 73 | PRESSURE CONTROL SOLENOID CIRCUIT (CURRENT ERROR) |
| 75 | SYSTEM VOLTAGE LOW |
| 79 | TRANSMISSION FLUID OVERTEMP |
| 81 | 2-3 SHIFT SOLENOID CIRCUIT FAULT |
| 82 | 1-2 SHIFT SOLENOID CIRCUIT FAULT |
| 83 | TCC PWM SOLENOID CIRCUIT FAULT |
DIAGNOSTIC CHARTS - "S" & "T" SERIES 4.3L VIN W
| DTC | Description |
|---|---|
| P0117 | CTS TEMPERATURE LOW - "S" & "T" 4.3L (VIN W) |
| P0118 | CTS TEMPERATURE HIGH - "S" & "T" 4.3L (VIN W) |
| P0122 | TPS SIGNAL LOW - "S" & "T" 4.3L (VIN W) |
| P0502 | VSS CK LOW/HIGH - "S" & "T" 4.3L (VIN W) |
| P0503 | VSS CK LOW/HIGH - "S" & "T" 4.3L (VIN W) |
| P0560 | SYSTEM VOLTAGE MALFUNCTION - "S" & "T" SERIES 4.3L (VIN W) |
| P0703 | TCC BRAKE INPUT CIRCUIT - "S" & "T" SERIES 4.3L (VIN W) |
| P0712 | TRANS. TEMP. SENSOR VOLTAGE LOW "S" & "T" SERIES 4.3L (VIN W) |
| P0713 | TRANS. TEMP. SENSOR VOLTAGE HIGH - "S" & "T" SERIES 4.3L (VIN W) |
| P0742 | TCC STUCK ON - "S" & "T" SERIES 4.3L (VIN W) |
| P0748 | PRESSURE CONTROL SOLENOID - "S" & "T" SERIES 4.3L (VIN W) |
| P0753 | 1-2 SHIFT SOLENOID - "S" & "T" 4.3L (VIN W) |
| P0756 | 2-3 SHIFT SOLENOID PERFORMANCE - "S" & "T" SERIES 4.3L (VIN W) |
| P0758 | 2-3 SHIFT SOLENOID ELECTRICAL - "S" & "T" SERIES 4.3L (VIN W) |
| P1810 | TRANSMISSION RANGE SWITCH ASSEMBLY CIRCUIT S" & "T" SERIES 4.3L (VIN W) |
| P1812 | TRANS. FLUID OVERTEMP - "S" & "T" SERIES 4.3L (VIN W) |
| P1860 | TCC PWM SOLENOID ELECTRICAL CKT - "S" & "T" SERIES 4.3L (VIN W) |
| P1864 | TCC SOLENOID ELECTRICAL CKT - "S" & "T" SERIES 4.3L (VIN W) |
| P1870 | TRANSMISSION COMPONENT SLIPPING - "S" & "T" SERIES 4.3L (VIN W) |
| P1886 | 3-2 SOLENOID ELECTRICAL CIRCUIT - "S" & "T" SERIES 4.3L (VIN W) |
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.