- BCM-U1511 (history) ABS U2106 lost comm with TCM History lost comm with Engine control system Engine-P0420-Cat efficiency P0562 system voltage low
- Program GM control Module. Program ecm and tcm due to speedo operation error. Vehicle speed was not correct and effecting things like cruise control. Speed was correct in tcm, but not in ecm or cluster. After flash vss was correct and cruise was restored. GM cluster repair. Repaired instrument cluster. Diagnosed tach issue, was reading 4,000 rpm at idle. Repaired cluster and fixed tach issue. Also addressed fuel gauge, temp and speedo failure in future.
Bobbie B. gave our service a 5 star review on 4/15/2021