"Service Active Handling" Message
Thread Starter
Cruising
Joined: Jun 2004
Posts: 10
Likes: 0
From: Chester NJ
"Service Active Handling" Message
Kinda' long thread - '04 Z , 50k miles, 2 weeks ago cruising down the highway, "Service Active Handling..." message appeared in the DIC. It has been happening almost daily now and I also noticed the cruise control disengaging on it's own now - about 5 times in a 2 hour trip. The cruise disengagement doesn't appear to happen when the "Service Active Handling...." message appears, but I bet the two are related. As a test, I turned off AH/TC and the "Service Active Handling.." message appeared again this morning, but I did not lose Cruise Control.
There's 1 TCS DTC code (C1288-H - Steering Position Sensor Circuit) and a bunch of "Lost Communication with..." codes in the IPC system (U1016, U1040, U1064, U1088, U1160 & U1176 - all History codes).
I first thought of a sensor issue, but with all of these Loss of Communication DTCs could it be a wiring or plug interface issue...???
Any insight would be appreciated.
Fred
There's 1 TCS DTC code (C1288-H - Steering Position Sensor Circuit) and a bunch of "Lost Communication with..." codes in the IPC system (U1016, U1040, U1064, U1088, U1160 & U1176 - all History codes).
I first thought of a sensor issue, but with all of these Loss of Communication DTCs could it be a wiring or plug interface issue...???
Any insight would be appreciated.
Fred
Drifting
Joined: Jan 2006
Posts: 1,849
Likes: 0
From: Philadelphia PA
Look at the electrical sticky at top; Pull the codes on your DIC and post them on here, and (like millennium02 said in his reply in c5 gen), do a search. There have been hundreds of posts about this.
Heel & Toe
Joined: Mar 2006
Posts: 19
Likes: 0
Active Handling Message
I have a 2002 Vert and it happened to me and it was the computer that is linked to the ABS System. Took it to the dealer and it cost me around a grand to fix it. Since I got it changed no problems or messages.
Tech Contributor
Joined: Dec 2003
Posts: 19,384
Likes: 87
From: Horncastle Lincolnshire, England
2023 C5 of the Year Finalist - Unmodified
Normally I'd be thinking that one of the modules is on its way south. With a steering position sensor that could in fact be the problem.
However, the EBCM is very voltage dependent. If it senses a reduction in voltage it throws a flag. Also that fact that the code is clearing is good. At least you don't have the dreaded C1214
With all those loss of comms codes you may be having a battery problem. Hows your battery? If its ready for replacement the first thing I'd try is a new battery and see if it fixes things.
However, the EBCM is very voltage dependent. If it senses a reduction in voltage it throws a flag. Also that fact that the code is clearing is good. At least you don't have the dreaded C1214
With all those loss of comms codes you may be having a battery problem. Hows your battery? If its ready for replacement the first thing I'd try is a new battery and see if it fixes things.
Thread Starter
Cruising
Joined: Jun 2004
Posts: 10
Likes: 0
From: Chester NJ
Thanks for the replies folks. I cleared all the codes this AM and got the "Service AH...." message on the way to work. I went in to retrieve the codes while I was driving. System TCS had codes C1287 C and
C1288 C - BOTH CURRENT. So looks like I'll be ording a steering position sensor next. Thx.
C1288 C - BOTH CURRENT. So looks like I'll be ording a steering position sensor next. Thx.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Tech Contributor
Joined: Dec 2003
Posts: 19,384
Likes: 87
From: Horncastle Lincolnshire, England
2023 C5 of the Year Finalist - Unmodified
Thanks for the replies folks. I cleared all the codes this AM and got the "Service AH...." message on the way to work. I went in to retrieve the codes while I was driving. System TCS had codes C1287 C and
C1288 C - BOTH CURRENT. So looks like I'll be ording a steering position sensor next. Thx.
C1288 C - BOTH CURRENT. So looks like I'll be ording a steering position sensor next. Thx.
Hope you fix it.
Burning Brakes
Joined: Oct 2000
Posts: 876
Likes: 23
From: Prescott Valley, AZ
I just got a C1288 H code today in my "04 Z. According to my code listing, a C1288 is a RR excessive wheel speed variation that would indicate a wheel sensor issue not a steering wheel sensor. Now I'm really confused.