GM 82 3X Crankshaft Position Sensor Circuit Error
How to read it
Code 82 reads as 8 flashes, pause, 2 flashes on the check-engine light. Jump terminals A and B on the ALDL connector with the key off, then turn the key on with the engine off and count the check-engine flashes.
New to flash codes? The How to Read GM OBD-I Codes with a Paperclip walks through the test and what the numbers mean. The general OBD-I guide covers the rest.
What does GM code 82 mean?
3X Crankshaft Position Sensor Circuit Error
Common causes of 82
- Failed crank sensor
- Damaged sensor wiring near the balancer
- Corroded sensor connector
- Excess crankshaft end play or damaged reluctor
How to fix 82
- Read codes with a paperclip jumper and check for no start or stall
- Inspect the sensor and reluctor for damage
- Check connector pins and harness routing
- Test sensor output with a meter while cranking
- Replace the sensor if signal is missing
- Clear the code and verify spark returns steady
Source
Qualified source review
Sources and review
Review: qualified. Read the source limits below.
- GM and Chevrolet OBD1 Trouble Codes (ALDL Fault Code List)
live reference page (troublecodes.net)
Supports: code identity and GM meaning
Fetched directly. Single publisher, so the record is qualified, not verified. Causes and check order are curator-written from the circuit the code names.
https://www.troublecodes.net/gm/
Last updated 2026-09-19.
Report a correction for 82. Include your vehicle, the issue and a source if you have one.