P0701 Pd code
#16
08-17-2012, 01:59 PM
Former Vendor
The battery has to be disconnected long enough for the capacitors to discharge, or a capacitive discharge has to be performed. All codes will clear, but hard faults will come back.
#17
08-17-2012, 02:14 PM
Join Date: Dec 2009
Location: indiana
Age: 63
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ok. i have had the battery off for 2 weeks (went to paris with the family for a week) now back to getting this fixed. also just got the ecu back from eplabs. they had to do a bench load for the tune with the k16 billits and other stuff.
#18
08-17-2012, 02:45 PM
In the event of an open circuit in the voltage supply 'terminal 30', the
following values are deleted from the control module:
♦ All fault memory entries
♦ Stored freeze frames of the faults
♦ All adaptation values
♦ The learned values of the throttle adjustment unit
♦ Ready statuses of individual diagnosis routines
Remedying faults (CE lamp OUT):
When a fault occurs for the first time during a diagnostic routine, it
is stored as a suspected fault. In the subsequent driving cycle, the
suspicion is either confirmed (fault recurs) or cancelled (fault does
not recur, no indication on a scan tool). If the fault activates the CE
lamp, a fault correction counter is started at the same time with a
certain value (e.g. 5). In the course of further diagnostic routines, if
the fault is not present in the same range window the correction
counter is decremented by 1. If the correction counter has the
value 0, the fault is assessed as remedied. If the fault activated the
Check Engine warning light, this will be switched off if not prevented
by any further fault. The fault remains in the fault memory for the
time being and is only deleted after a number of further warm-up
cycles (defined in the fault deletion counter) (workshop assistance if
for example the tank cap is temporarily not correctly screwed in).
Also the DME control module must perform a learning and adaptation
routine for the throttle adjustment unit if:
♦ The power supply to the DME control module is interrupted
♦ The DME control module plugs are disconnected
♦ A new DME control module is installed
♦ The throttle adjustment unit is replaced
♦ The DME is programmed.
To do this:
1. Switch the ignition on for 1 minute without starting the engine.
Do not actuate the accelerator pedal (for instance, make sure
that there is not a carpet pressing on the pedal).
2. Switch off ignition for at least 10 seconds.
I personally think having duramteric is a must if you plan or have any mods.
#19
08-17-2012, 02:51 PM
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Join Date: May 2010
Location: Scotland
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Rep Power: 95 The DME can store a limited selection of Tip codes, but to read out the TCU ( which has all the codes and adaptive values)you must interrogate the module with, as mentioned , a PST2 PIWIS or Durametric. Most and nearly all other scanners will not interrogate the TCU
Last edited by Frank ( Sunnyside ); 08-17-2012 at 02:53 PM.
#21
08-17-2012, 05:13 PM
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Rep Power: 95 I normally respond quicker to enquiries@sunnysidebb.co.uk
#22
08-17-2012, 09:01 PM
Join Date: Dec 2009
Location: indiana
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just tryed a few things. drained out 5 quarts and took the pan off. the fluid was worn but not horible. i back flushed the filter. no metal present in the pan or the filter. the magnet had a normal amount of dust. no visual problems... i put all back together 5 new quarts back in and took out for a spin. same problem. back on the lift to check the fluid level. it was 2 quarts low. i thought that was it , took out for another spin around the country road block and same problem.
#23
08-18-2012, 01:23 AM
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Join Date: May 2010
Location: Scotland
Posts: 1,457
Rep Power: 95 just tryed a few things. drained out 5 quarts and took the pan off. the fluid was worn but not horible. i back flushed the filter. no metal present in the pan or the filter. the magnet had a normal amount of dust. no visual problems... i put all back together 5 new quarts back in and took out for a spin. same problem. back on the lift to check the fluid level. it was 2 quarts low. i thought that was it , took out for another spin around the country road block and same problem.
You dont want to do any more damage of the clutch packs just in case the fault is electrical such as N1,2 3 sensor faults, PSU faults or Valve block faults.
Frank
#24
08-18-2012, 10:47 AM
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#25
08-18-2012, 11:02 AM
Join Date: Dec 2009
Location: indiana
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Went out to get some gas this morning. I figured I would not go above third gear and see if any codes came up. At first it went through the gears, but shortly it just stayed in third with no other problems just in third and would not go in any other gear . The same code came up po701
#26
08-19-2012, 01:24 AM
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Location: Scotland
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Rep Power: 95 Went out to get some gas this morning. I figured I would not go above third gear and see if any codes came up. At first it went through the gears, but shortly it just stayed in third with no other problems just in third and would not go in any other gear . The same code came up po701
once again I must emphasise P0701 is not enough code information. There is a further set of codes which are associated with 0701. ie emergency run diode activation, n1 slippage etc. You MUST get the codes read out properly. Before expensive removal of the box, you might just have a simple signal missing or wiring defect.
Last edited by Frank ( Sunnyside ); 08-19-2012 at 01:32 AM.
#27
08-19-2012, 07:31 AM
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Roger that. I will get a better coad reader today and get the sub code. That said I read the scribd doc above last night. The trans is totally electronic. Also when I went around the block yesterday the 701 code came up, but I do not think any physical thing occurred .... I kept it in the lower gears and there wasn't any slipping or over speeding or such.... There are codes for all the solenoids malfunction..... It could be a sensor ... Looks like the next step is to get the sub code , drop the pan and hydraulic plate ... The trouble should be on the plate. It still would be nice to swap a known good tcm just to double check that. My wife has a 996 cab 2001 tip.... Probably a different unit.
#30
08-23-2012, 08:19 PM
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