A4 (B5 Platform) Discussion Discussion forum for the B5 Audi A4 produced from 1995-2001 B5 FAQ

Need help with codes...

Thread Tools
 
Search this Thread
 
Old Oct 2, 2007 | 06:34 PM
  #1  
Damiano's Avatar
Thread Starter
AudiWorld Member
 
Joined: Mar 2006
Posts: 209
Likes: 1
Default Need help with codes...

<center><img src="http://www.ross-tech.com/images/vss.jpg"></center><p>A4 99.5 QM V6 30V, I did reset MIL and codes came up again:

17606 P1198 O2 Sensor Heater Circ.,Bank1-Sensor2 Electrical Malfunction

17607 P1199 O2 Sensor Heater Circ.,Bank2-Sensor2 Electrical Malfunction

16502 P0118 Engine Coolant Temp.Circ High Input

1. Are first 2 codes caused by O2 sensor or just it's heater ?

2. Which of the O2 sensors needs to be replaced? both?

3. Aren't these both on the same "circuit"?

4. How can you tell which one is malfunction?

5. If its just the heater can CEL be "fixed" by plugging the resistor into its circuit?

6. Where is Engine Coolant sensor located, how hard is it to replace it?

7.Are these codes caused by the same malfunction?

Any answer, advice will be greatly appreciated,

Help your fellow "AudiWorlder" pass the NY inspection
Reply
Old Oct 3, 2007 | 03:51 AM
  #2  
4Driver4's Avatar
Tech Guru
20 Year Member
Tech Guru

 
Joined: Oct 2002
Posts: 34,430
Likes: 130
Default

Check all fuses and make sure you are getting power to the bank 2 sensors. R&amp;R the coolant senso
Reply
Old Oct 3, 2007 | 04:18 AM
  #3  
Casablanca Avant's Avatar
Member
 
Joined: Feb 2003
Posts: 4,779
Likes: 0
Default

coolant sensor replacement procedure can be found in the tech section
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
dubledn11
S4 / RS4 (B5 Platform) Discussion
2
Dec 21, 2009 12:59 PM
mattsimis
S4 / RS4 (B5 Platform) Discussion
6
May 15, 2009 04:39 AM
tj19855
A4 (B6 Platform) Discussion
4
Jul 1, 2008 01:53 AM
tybmw
A6 / S6 (C5 Platform) Discussion
9
Aug 12, 2006 06:26 AM
Psssss
VAG-COM Discussion
3
May 3, 2003 09:38 PM




All times are GMT -8. The time now is 06:12 PM.

story-0
Audi Unveils Absurdly Cool New Supercar: 10 Things You Need to Know!

Slideshow: Limited to just 499 units, the 987-horsepower halo car signals a new chapter for Audi performance.

By Verdad Gallardo | 2026-06-04 17:37:15


VIEW MORE
story-1
The Highs & Lows of Every Audi C-Class Generation

Slideshow: The highs and lows of every Audi C-Class generation.

By Joe Kucinski | 2026-05-27 16:05:50


VIEW MORE
story-2
Top 10 Most Expensive Audis Ever Sold on Bring-A-Trailer

People were more than happy to shell out big bucks for these cars.

By Brett Foote | 2026-05-27 15:32:23


VIEW MORE
story-3
10 Audi Features & Options We Miss the Most!

Slideshow: 10 Audi features and options we miss the most.

By Joe Kucinski | 2026-05-12 19:33:47


VIEW MORE
story-4
Audi Recreates Crazy-Looking Speed Record Breaker From 1935

Slideshow: Audi has recreated one of the wildest machines of the pre-war speed-record era, reviving a streamlined V16 racer that originally exceeded 200 mph in 1935.

By Verdad Gallardo | 2026-05-11 09:49:34


VIEW MORE
story-5
Coachbuilder Recreates the 1995 Audi TTS Concept

Slideshow: A Dutch coachbuilder has reimagined the original Audi TT by finishing what the 1995 concept only hinted at.

By Verdad Gallardo | 2026-05-05 15:17:58


VIEW MORE
story-6
Every Audi V10 Car Ranked!

Slideshow: Ranking every Audi V10 road car

By Joe Kucinski | 2026-04-29 16:11:56


VIEW MORE
story-7
9 Audi Designs That Aged Like Fine Wine

Slideshow: A look back at the Audis that didn't just survive changing tastes, they quietly outgrew them.

By Verdad Gallardo | 2026-04-28 19:38:27


VIEW MORE
story-8
2026 Audi Q5 Buyer's Guide (Every Model Explained)

One year off a full redesign, the best-selling Q5 is getting a few more updates.

By Brett Foote | 2026-04-17 09:56:19


VIEW MORE
story-9
Ranking Every Current Audi 'S' Model From Worst to First!

Slideshow: Ranking every current Audi 'S' model on sale today from worst to best.

By Joe Kucinski | 2026-04-16 10:28:28


VIEW MORE