C5 Tech Corvette Tech/Performance: LS1 Corvette Technical Info, Internal Engine, External Engine, Tech Topics, Basic Tech, Maintenance, How to Remove & Replace
Sponsored by:
Sponsored by:

abs & active handling display

Thread Tools
 
Search this Thread
 
Old Aug 6, 2009 | 05:14 PM
  #1  
jrodz06's Avatar
jrodz06
Thread Starter
2nd Gear
 
Joined: Aug 2008
Posts: 2
Likes: 0
Default abs & active handling display

I scanned and it came up with C1214 code. It is a ebcm, problem goes out on dash periodically. Is that a sign that it is a weak modular?
Reply
Old Aug 6, 2009 | 07:11 PM
  #2  
dougbfresh's Avatar
dougbfresh
Le Mans Master
 
Joined: Nov 2005
Posts: 6,993
Likes: 25
Default

Bad relay, go to www.absfixer.com-$150-200 and it'll be better than new.
Reply
Old Aug 7, 2009 | 10:40 AM
  #3  
FinishLine's Avatar
FinishLine
Instructor
15 Year Member
 
Joined: Dec 2003
Posts: 169
Likes: 1
From: Tampa FL
Default

Originally Posted by dougbfresh
Bad relay, go to www.absfixer.com-$150-200 and it'll be better than new.
I have a 1999 that is doing the same thing - it recently started throwing the service abs, service traction control, service active handling messages. It seems to be intermittent. I hear it's the abs pump, and I also heard that it can't be repaired on a 1999. Given the car is 10 years old, anyone have any cheap repair suggestions?

Someone suggested i pull the fuse and live with the lights on in the dash.
Reply
Old Aug 7, 2009 | 10:56 AM
  #4  
87SAM's Avatar
87SAM
Safety Car
25 Year Member
Liked
Loved
Top Answer: 1
 
Joined: Jan 2001
Posts: 4,386
Likes: 689
From: Boise ID
Default

The relay can go out in the EBCM which is common. If that's the case, absfixer can take care of that on 2001-2004 models.

The BPMV could also be the problem, less common.

DTC C1214
Circuit Description
The system relay is energized when the ignition is ON. The system relay supplies voltage to the solenoid valves and the pump motor. This voltage is referred to as the system voltage.

The electronic brake control module (EBCM) controls each solenoid valve by grounding the solenoid.

The EBCM controls the pump motor by grounding the control circuit. The pump serves 2 purposes:

Transfers brake fluid from the brake calipers to the master cylinder reservoir during pressure decrease events.
Transfers brake fluid from the master cylinder reservoir to the brake calipers during pressure increase events.
Conditions for Running the DTC
The ignition voltage is greater than 10.5 volts.
The system relay is commanded ON.
Conditions for Setting the DTC
The system voltage is less than 8 volts for 0.23 seconds.

Action Taken When the DTC Sets
If equipped, the following actions occur:

The EBCM disables the ABS/TCS/VSES for the duration of the ignition cycle.
The DRP does not function optimally.
The ABS indicator turns ON.
The Traction Control and Active Handling indicator turns ON.
The DIC displays the following messages:
Service ABS
Service Traction System
Service Active Handling
Conditions for Clearing the DTC
The condition for the DTC is no longer present and the DTC is cleared with a scan tool.
The EBCM automatically clears the history DTC when a current DTC is not detected in 100 consecutive drive cycles.
Diagnostic Aids
The system relay is integral to the EBCM. The relay is not serviceable.

Test Description
The number below refers to the step number on the diagnostic table.

Determines whether the DTC is current.

Step
Action
Values
Yes
No

Schematic Reference: ABS Schematics

Connector End View Reference: ABS Connector End Views

1
Did you perform the ABS Diagnostic System Check?
--
Go to Step 2
Go to Diagnostic System Check - ABS

2
Install a scan tool.
Turn ON the ignition, with the engine OFF.
Use the scan tool in order to clear the DTCs.
With the scan tool, perform the Automated Test.
Does the DTC reset as a current DTC?
--
Go to Step 3
Go to Testing for Intermittent and Poor Connections in Wiring Systems

3
Disconnect the pump motor harness pigtail connector of the BPMV.
Measure the resistance between each pump motor control circuit and the housing of the BPMV at the pump motor harness pigtail connector of the BPMV.
Does the DMM display the specified value?
OL
Go to Step 5
Go to Step 4

4
Replace the EBCM and the BPMV. Refer to Electronic Brake Control Module (EBCM) Replacement and Brake Pressure Modulator Valve (BPMV) Replacement .

Did you complete the repair?
--
Go to Step 6
--

5
Replace the EBCM. Refer to Electronic Brake Control Module (EBCM) Replacement .

Did you complete the repair?
--
Go to Step 6
--

6
Use the scan tool in order to clear the DTCs.
With the scan tool, perform the Automated Test.
Does the DTC reset?
--
Go to Step 2
System OK
Reply
Old Aug 7, 2009 | 10:58 AM
  #5  
87SAM's Avatar
87SAM
Safety Car
25 Year Member
Liked
Loved
Top Answer: 1
 
Joined: Jan 2001
Posts: 4,386
Likes: 689
From: Boise ID
Default

Originally Posted by FinishLine
Someone suggested i pull the fuse and live with the lights on in the dash.
Doesn’t really matter, if the light is on, the system is deactivated anyway.
Reply
Old Aug 7, 2009 | 08:05 PM
  #6  
jpl99vert's Avatar
jpl99vert
Instructor
 
Joined: Mar 2007
Posts: 143
Likes: 0
From: Willis Texas
Default

87sam One more question for you. 3 -12volt circuits going into the EBTCM Two are constant voltage, one is for the solenoid, second is for the pump motor.
Third circuit is switched off the key. This circuit comming from the instrument panel fuse also supplies the four heated oxygen sensors, and also goes to the ESC module.
Question, what if there was a problem in either the oxygen sensors or the ECS module were it drained power to the EBTCM, Could set the ABS,ACtive, Traction codes? Thanks Jerry
Reply

Get notified of new replies

To abs & active handling display





All times are GMT -4. The time now is 10:38 AM.

story-0
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE
story-1
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

Slideshow: Ranking the top 10 Corvette engines by torque output.

By Joe Kucinski | 2026-05-05 11:58:09


VIEW MORE
story-2
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

Slideshow: A Corvette pace car nearly matching IndyCar speeds sounds exaggerated, until you look at the numbers.

By Verdad Gallardo | 2026-05-04 20:03:36


VIEW MORE
story-3
Top 10 Corvettes Coming to Mecum Indy 2026!

Among a rather large group of them.

By Brett Foote | 2026-05-04 13:56:44


VIEW MORE
story-4
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

Slideshow: the top 10 things Corvette owners want in the C9 Corvette

By Michael S. Palmer | 2026-04-30 12:41:15


VIEW MORE
story-5
10 Revolutionary 'Corvette Firsts' Most People Don't Know

Slideshow: 10 Important Corvette 'firsts' that every fan should know.

By Joe Kucinski | 2026-04-29 17:02:16


VIEW MORE
story-6
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

Slideshow: Should you buy a 2020-2026 Corvette or wait for 2027?

By Michael S. Palmer | 2026-04-22 10:08:58


VIEW MORE
story-7
2027 Corvette vs The World: Every C8 vs Its Closest Competitor

Slideshow: 2027 Corvette lineup vs the world.

By Joe Kucinski | 2026-04-24 16:12:42


VIEW MORE
story-8
10 Most Common Corvette Problems of the Last 20 Years!

Slideshow: 10 major Corvette problems from the last 20 years.

By Joe Kucinski | 2026-04-14 16:37:05


VIEW MORE
story-9
5 MOST and 5 LEAST Popular Corvette Model Years in History!

Slideshow: 5 most and least popular Corvette model years.

By Joe Kucinski | 2026-04-08 13:25:01


VIEW MORE