What causes GM code 96?

Weak battery or failing alternator Corroded battery cables or trans power feed Blown trans fuse Faulty ignition switch feed to the trans

How do I fix GM code 96?

Read codes with an ALDL scan tool Check battery voltage and charging output first Clean battery terminals and trans power feeds Check the trans fuse and relay Voltage drop test the power and ground circuits Repair charging or wiring then clear and retest

96 Transmission System Voltage Low

Q: What does GM code 96 mean?

GM code 96 — Transmission System Voltage Low. Applies to 1993-1995 C/K trucks, Suburban, Caprice, Roadmaster.

Make: GM (1982-1995)
Category: Powertrain - Transmission
Severity: Check Engine Light
Applies to: 1993-1995 C/K trucks, Suburban, Caprice, Roadmaster

How to read it

Code 96 reads as 9 flashes, pause, 6 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.

What does GM code 96 mean?

96 — Transmission System Voltage Low. This code sets when your vehicle computer detects transmission system voltage low.

Common causes of 96

Weak battery or failing alternator
Corroded battery cables or trans power feed
Blown trans fuse
Faulty ignition switch feed to the trans

How to fix 96

Read codes with an ALDL scan tool
Check battery voltage and charging output first
Clean battery terminals and trans power feeds
Check the trans fuse and relay
Voltage drop test the power and ground circuits
Repair charging or wiring then clear and retest