ABS/PSM - 4200 code
#1
10-17-2011 | 03:19 PM
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ABS/PSM - 4200 code
I've been getting the ABS/PSM errors now pretty regularly and the durametric pulls a 4200 code - right front speed sensor. I replaced it with a new one, but lo and behold, I'm still getting the error.
Any suggestions for where else the issue could be?
Any suggestions for where else the issue could be?
#2
10-18-2011 | 02:53 AM
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Joined: May 2010
Posts: 1,503
From: Scotland
Rep Power: 98
911 Turbo (996)
4503 Fault code 4200
45-7
page 1
PSM 5.7
4200ps05
45
Printed in Germany – 29, 2002
Printed in Germany – 29, 2002
45-7
Fault code 4200
Speed sensor lead, front right
Diagnostic conditions
•
Ignition on
Possible cause of fault
♦
Short circuit to B+ / ground or open circuit between control unit
and speed sensor
and speed sensor
♦
Speed sensor faulty
♦
Control unit faulty
Affected pins
Pin 15 and pin 16
Diagnosis/troubleshooting
Work instruction Display OK If not OK
1 Visual inspection
♦ Examine speed sensor and
wire at the front right for external
damage.
wire at the front right for external
damage.
♦
Check speed sensor plug for
corrosion.
corrosion.
Step 2 ♦ Repair speed
sensor and
lead.
sensor and
lead.
♦
Repair speed
sensor plug.
sensor plug.
→
End
2 Checking speed sensors ♦ Ignition off.
2 Checking speed sensors ♦ Ignition off.
♦
Disconnect plug from speed
sensor.
sensor.
♦
Measure resistance between
pin 1 and pin 2 on speed sensor.
1 kΩ to 3 kΩ
Step 3
> 3 kΩ or < 1 kΩ
pin 1 and pin 2 on speed sensor.
1 kΩ to 3 kΩ
Step 3
> 3 kΩ or < 1 kΩ
Step 9
3 Checking function of
speed sensor
3 Checking function of
speed sensor
♦
Ignition off.
♦
Set AC measuring range on the
multimeter.
multimeter.
♦
Jack the vehicle up and turn the
front right wheel by hand.
front right wheel by hand.
♦
Measure voltage between pin 4
and pin 5 of speed sensor.
Measureable AC voltage,
approx. same
level as to speed
sensor of an opposite
wheel at same
wheel speed.
Step 5
No AC voltage
measureable.
and pin 5 of speed sensor.
Measureable AC voltage,
approx. same
level as to speed
sensor of an opposite
wheel at same
wheel speed.
Step 5
No AC voltage
measureable.
Step 5
4 Mechanical function ♦ Check speed sensor and
toothed ring at the front right
for soiling and damage.
4 Mechanical function ♦ Check speed sensor and
toothed ring at the front right
for soiling and damage.
Step 9 Clean toothed ring
and replace, if necessary.
and replace, if necessary.
→ End
45
Printed in Germany – 29, 2002
Printed in Germany – 29, 2002
5 Checking leads of speed
sensor for short circuit
to B+
sensor for short circuit
to B+
♦
Ignition off.
♦
Pull plug off the PSM control
unit.
unit.
♦
Ignition on.
♦
Measure voltage between PSM
control unit plug pin 15 and
ground.
control unit plug pin 15 and
ground.
♦
Measure voltage between PSM
control unit plug pin 16 and
ground.
< 0.3 V
Step 6
Short circuit to B+
between PSM control
unit plug pin 15
or pin 16 and
speed sensor pin 4
or pin 5.
Repair wiring harness.
control unit plug pin 16 and
ground.
< 0.3 V
Step 6
Short circuit to B+
between PSM control
unit plug pin 15
or pin 16 and
speed sensor pin 4
or pin 5.
Repair wiring harness.
→
End
6 Checking leads of speed
sensor for short circuit
to ground
6 Checking leads of speed
sensor for short circuit
to ground
♦
Ignition off.
♦
Measure resistance between
PSM control unit plug pin 15
and ground.
PSM control unit plug pin 15
and ground.
♦
Measure resistance between
PSM control unit plug pin 16
and ground.
PSM control unit plug pin 16
and ground.
∞ Ω
Step 7
Short circuit to
ground between
PSM control unit
plug pin 15 or pin
16 and speed sensor
pin 4 or pin 5.
Repair wiring harness.
Short circuit to
ground between
PSM control unit
plug pin 15 or pin
16 and speed sensor
pin 4 or pin 5.
Repair wiring harness.
→
End
7 Checking leads of speed
sensor for open circuit
7 Checking leads of speed
sensor for open circuit
♦
Ignition off.
♦
Measure resistance between
PSM control unit plug pin 15
and pin 4 on speed sensor.
PSM control unit plug pin 15
and pin 4 on speed sensor.
♦
Measure resistance between
PSM control unit plug pin 16
and pin 5 on speed sensor.
0 Ω
Step 8
Open circuit in
leads of speed sensor.
Repair wiring harness.
PSM control unit plug pin 16
and pin 5 on speed sensor.
0 Ω
Step 8
Open circuit in
leads of speed sensor.
Repair wiring harness.
→
End
8 Checking leads of speed
sensor for short circuit
with respect to each
other
8 Checking leads of speed
sensor for short circuit
with respect to each
other
♦
Ignition off.
♦
Measure resistance between
PSM control unit plug pin 15
and pin 16.
PSM control unit plug pin 15
and pin 16.
∞ Ω
Step 10
Short circuit in
leads of speed sensor
with respect to
each other.
Repair wiring harness.
Short circuit in
leads of speed sensor
with respect to
each other.
Repair wiring harness.
→
End
9 ♦ Replacing front right speed sensor → End
9 ♦ Replacing front right speed sensor → End
10 ♦ Replacing PSM control unit → End
Its a bit difficult to follow , but its coppied from a PDF file and comes out like this when pasted.
All the info is there though.
#3
10-18-2011 | 05:28 AM
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Joined: Jul 2006
Posts: 8,934
From: ga
Rep Power: 551
I have the same issue, only I have actually had my ABS fail (on track, multiple times). Replaced the harnesses and the sensors. Still problem. I have been instructred by someone with similar issues to check the ground wire (two brown wires used to ground the ABS/PSM system in the boot lid). That is my next shot. Then I'm going to rip the whole thing out.
#5
10-18-2011 | 07:58 AM
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Joined: May 2010
Posts: 1,503
From: Scotland
Rep Power: 98
I have the same issue, only I have actually had my ABS fail (on track, multiple times). Replaced the harnesses and the sensors. Still problem. I have been instructred by someone with similar issues to check the ground wire (two brown wires used to ground the ABS/PSM system in the boot lid). That is my next shot. Then I'm going to rip the whole thing out.
#6
10-18-2011 | 08:52 AM
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Joined: Jun 2011
Posts: 47
From: Bay Area, CA
Rep Power: 16
Wow, thanks for all the suggestions guys. I will follow the diagnostic instructions and post results.
Sunnyside - The previous owner had steering angle sensor replaced and recalibrated and the durametric only shows 4200 as the code. There are no other codes from the ABS/PSM unit. If it was the steering angle sensor, I should expect to see a code pointing me in that direction right?
Sunnyside - The previous owner had steering angle sensor replaced and recalibrated and the durametric only shows 4200 as the code. There are no other codes from the ABS/PSM unit. If it was the steering angle sensor, I should expect to see a code pointing me in that direction right?
#7
10-18-2011 | 09:03 AM
Registered User
Joined: May 2010
Posts: 1,503
From: Scotland
Rep Power: 98
Wow, thanks for all the suggestions guys. I will follow the diagnostic instructions and post results.
Sunnyside - The previous owner had steering angle sensor replaced and recalibrated and the durametric only shows 4200 as the code. There are no other codes from the ABS/PSM unit. If it was the steering angle sensor, I should expect to see a code pointing me in that direction right?
Sunnyside - The previous owner had steering angle sensor replaced and recalibrated and the durametric only shows 4200 as the code. There are no other codes from the ABS/PSM unit. If it was the steering angle sensor, I should expect to see a code pointing me in that direction right?
This ABS thing seems to be the 996tt's achilles heel. I had 2 brand new tyres fitted on the front and only just acceptable rears and I think that was also another reason for the problem. Different wheel speeds? I had the rears changed and I stopped having the fault appear quite as often. Still did it though.
Trending Topics
#8
10-18-2011 | 09:21 AM
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Joined: Jul 2006
Posts: 8,934
From: ga
Rep Power: 551
No I haven't, but I haven't gotten a code for that. The codes I have gotten (And I forget the code numbers because the shop that the car is at wrote them down) were:
Left front wheel sensor
ABS Pump
CAN signal implausible
So I guess my symptoms may be somewhat different, but mine has actually locked up a few times, once going 150+ into 10a at Road Atlanta. My light does not stay on either, if I cut the car off and back on, it goes away. CODES AND ALL (even tested by PIWIS). The only way we got the code was for me to go on track and try to make it happen again (CRAZY), which it did, without even engaging ABS and brought it straight in with motor still running and got those codes.
#9
03-13-2012 | 04:50 PM
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From: Bay Area, CA
Rep Power: 16
Resolved
Sorry to resurrect an old thread, but I've been busy with work and haven't had time to log on, but I figure it would be good to post the resolution.
I wound up taking this to the shop, they did a bunch of diagnosis and reseated the wires/harnesses at all the connection points and lo and behold, the problem is gone. Hasn't come back in 2 months.
Looks like it was a loose connection somewhere.
I wound up taking this to the shop, they did a bunch of diagnosis and reseated the wires/harnesses at all the connection points and lo and behold, the problem is gone. Hasn't come back in 2 months.
Looks like it was a loose connection somewhere.
#10
07-21-2012 | 09:49 PM
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Joined: Oct 2005
Posts: 5,597
Rep Power: 331
guys
im having this issue with my car tonight.
my wheel speed sensor is still showing as faulty.
there are no grounds in the harness.
we have continuity from the speed sensor to the control unit... and those lines are not grounded either. We checked the brown wires.. one of them we have continuity, the other brown wire seems to have a diode, and we cant get continuity through it (checked both directions).
what do you guys think is going on ?
im having this issue with my car tonight.
my wheel speed sensor is still showing as faulty.
there are no grounds in the harness.
we have continuity from the speed sensor to the control unit... and those lines are not grounded either. We checked the brown wires.. one of them we have continuity, the other brown wire seems to have a diode, and we cant get continuity through it (checked both directions).
what do you guys think is going on ?
#13
07-22-2012 | 12:22 PM
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Joined: Apr 2012
Posts: 203
From: Germany - Hessen
Rep Power: 37
I got same problem Took it to dealer checked my tires sensors cleaned them still same fault show up
Then they changed brake sensor its inder the steering wheels and if fixed
Usually i was getting this error as soon i use brakes
Hope thats help
Then they changed brake sensor its inder the steering wheels and if fixed
Usually i was getting this error as soon i use brakes
Hope thats help