Car is a 1995 XJS 6-cylinder 2+2 with the earlier Teves
braking system with the black accumulator on the passenger side.
Using George Balthrop’s instructions in the archives, I
tested the ABS system on my car since the warning light is
on. I jumped the black and the brown/pink wires in the trunk
using a paperclip.
Here is my flash sequence:
2 FLASHES (George said this is the ABS self-test and not to
confuse it with actual codes) **** 2 second PAUSE **** 1
FLASH **** 6 second PAUSE **** 3 FLASHES **** 2 second PAUSE
**** 3 FLASHES **** 6 second PAUSE **** 4 FLASHES **** 2
second PAUSE **** 3 FLASHES
George mentioned a pause of approx. 6 seconds between codes,
with 2 seconds existing between double-digit code flashes.
With that in mind, it looks like I have codes:
1, 33, and 43
What are these codes telling me? Does someone have page
70-22 of the Jaguar service manual? He also mentioned that
the codes could be read from a mid-1990s Cadillac workshop
manual, as those cars shared the Teves system.
Unfortunately I have not yet invested in either manual. Can
someone check what these codes mean?
In reply to a message from jstjagguy sent Tue 7 May 2013:
Looking through the archives, someone said that:
‘‘code 21 over rides all other codes ,and will be shown
first, this is the main solenoid on the ABS block , on the
front, you have to clear code 21 before any other codes are
flashed’’
This is not what George’s instructions claimed - i.e. that
the light will always initially flash 2 times when the test
procedure is initialized.
Who is correct? Or are they both correct and the main
solenoid failure is a symptom of codes 33 and 43?
If code 21 is not a symptom of the other codes, what does it
suggest is wrong?
In reply to a message from jstjagguy sent Tue 7 May 2013:
In my service manual it says, put jumper in, turn ignition to
position 2, and after a 6 sec pause the first code will display,
codes seperated by 6.5 second pauses. The example in the manual
uses 21 followed by 31, it does say the ecu only deals with one
type of fault at a time ex. code 21 will display but 22 will not,
it skips to the next fault type like 31 or greater. There is a
note you should fix first fault then perform ecu memory erase
procedure - which is to drive car at a speed greater that 19mph
then repeat on-board test again.
Code 21 is listed under High Priority failures and is a Vavle
failure, potential causes: Defective vavle/cable harness/power
transister in ECU, then it says check indicated solenoid
valve/terminals for short or interruption (21-27) but doesn’t say
what to do after that.
33 is sensor rear right - sensor failure recognized by monitoring
wheel speed continuity at vehicle speed above 40km/hr
43 1s sensor rear right - sensor failure recognised by wheel speed
comparision
For 33 and 43 it says check for faild sensor, wiring, missing teeth
on sensor wheel, air gap on sensor and bearing clearance, missing
sensor or wheel…
In reply to a message from rsquared sent Wed 8 May 2013:
Thanks. Does anyone know if code 21 can be a symptom of a
bad wheel speed sensor (codes 33 and 43)?–
jstjagguy
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