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Yes, the tach goes up to about 300-500 rpm when starter cranks. I'm committed to changing the sensor anyway...when I can get the old one out!!...Fuel pump relay clicks when key turned. Telltale bulb attached to harness going to fuel pump 'lights up' when key turned to ON/starter engaged. Another funky symptom is that I lost my window up and down function for two days but it mysteriously re-appeared.
Have you done any CCM wiring checks under the carpet? We seem to be chasing a good bit of electrical, but when other systems in the car are acting up, they all could be related to a single root cause.
 

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Ive had the speedo move and still had a bad sensor. What was the ohm measurement on the CPS? You are measureing pins 2 and 3 on the sensor itself not the harness right? Id recommend a Genuine VW/Audi or atleast a OEM brand sensor like bosch/hella. The cheap sensors can sometimes only last a couple months or even less. Even the OE ones go out more often then they should. I actually keep a spare in my car.
The speedo works without a signal from the ESS, but the tacho does not.
 

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Have you done any CCM wiring checks under the carpet? We seem to be chasing a good bit of electrical, but when other systems in the car are acting up, they all could be related to a single root cause.
He does have a problem with the CCM system, but it is not preventing starting.
Possibly water damage to the CCM or its wiring.

See this link for repaid info:

Let's try to get it started first.
If there is more than 9V at both sides of fuse 28 while cranking, and the fuel pump is not running, there is a problem with the fuel pump or its wiring.
 

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2002 Volkswagen Passat Wagon GLX 4Motion
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Discussion Starter #85
Did you measure resistance at the crankshaft position sensor?
My understanding to test resistance across Pins 2 and 3...I get nada when trying that. I'm am now trying to pull and replace the ESS - engine speed sensor...
 

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2002 Volkswagen Passat Wagon GLX 4Motion
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Discussion Starter #86 (Edited)
Newest VCDS-Lite reading...

Wow! did this formatting get destroyed or what? X47MKX.3.pdf


The O2 Sensor error remains and is a TBD...The P1602 Voltage too low, I presume is due to me disconnecting the battery when the car not being worked on.
Engine still does not start...but does fire when using starter fluid (ether)
Fuel pump changed
No power at fuses 28, 29, 34...
Original engine speed sensor still stuck in the engine...I need to raise the car to get at it from underneath...

TIA for any good ideas on what to check next...

Jack


Chassis Type: 3B - VW Passat B5 Scan: 01,02,03,08,15,16,17,19,35,36,37,46,47,55,56,57,58,75,76,77 ------------------------------------------------------------------------------- Address 01: Engine Labels: 078-907-551-ATQ.LBL Controller: 3B0 907 551 CG Component: 2.8L V6/5V G 0001 Coding: 07251 Shop #: WSC 05311 VCID: 6AA72EDD0567 WVWYH63B72E334897 VWZ7Z0A4505463
2 Faults Found:
17526 - Oxygen (Lambda) Sensor Heating; B1 S2: Open Circuit P1118 - 35-10 - - - Intermittent
18010 - Power Supply Terminal 30: Voltage too Low P1602 - 35-00 - - Readiness: 0110 1101

Address 02: Auto Trans Labels: 01V-927-156.LBL Controller: 3B0 927 156 AD Component: AG5 01V 2.8l5V USA 3939 Coding: 00102 Shop #: WSC 05311 VCID: 68A354D51B6B
1 Fault Found:
18265 - Load Signal: Error Message from ECU P1857 - 35-10 - - - Intermittent

Address 03: ABS Brakes Labels: 8E0-614-111-ABS.LBL Controller: 8E0 614 111 A Component: ABS/EDS 5.3 QUATTRO D10 Coding: 0273004284 Shop #: BB 24334 VCID: 1C4B38059FB3 No fault code found.

VCDS-Lite Self-Diagnosis Log Sunday, 31 May 2020, 20:44:55:28534 Page 2 VIN Number: WVWYH63B72E334897 License Plate: X47MKX Address 08: Auto HVAC Labels: 3Bx-907-044.LBL Controller: 3B1 907 044 J Component: CLIMATRONIC B5GP 0004 Coding: 17200 Shop #: WSC 05311 VCID: 282314D5DBEB
7 Faults Found:
00532 - Supply Voltage B+ 07-10 - Signal too Low - Intermittent
00792 - A/C Pressure Switch (F129) 35-00 - -
00603 - Footwell/defroster Flap Positioning Motor (V85) 37-00 - Faulty
01271 - Positioning Motor for Temperature Flap (V68) 37-00 - Faulty
01272 - Positioning Motor for Central Flap (V70) 37-00 - Faulty
01274 - Air Flow Flap Positioning Motor (V71) 37-00 - Faulty
01341 - Control Module in Instrument Panel On Comfort CAN (J285) 27-10 - Implausible Signal - Intermittent

Address 15: Airbags Labels: 6Q0-909-605-VW5.LBL Controller: 1C0 909 605 C Component: 09 AIRBAG VW61 04 0001 Coding: 12345 Shop #: WSC 05311 VCID: 243B00E5A7C3
1 Fault Found:
00532 - Supply Voltage B+ 07-10 - Signal too Low - Intermittent

Address 16: Steering wheel Labels: 1J0-907-487-A.LBL Controller: 1J0 907 487 A Component: Lenkradelektronik 0004 Coding: 00118 Shop #: WSC 05314 VCID: 2F11FFC9FE05
3 Faults Found:
01341 - Control Module in Instrument Panel On Comfort CAN (J285) 27-10 - Implausible Signal - Intermittent
01341 - Control Module in Instrument Panel On Comfort CAN (J285) 49-10 - No Communications - Intermittent
00926 - Terminal 30 07-10 - Signal too Low - Intermittent

VCDS-Lite Self-Diagnosis Log Sunday, 31 May 2020, 20:44:55:28534 Page 3 VIN Number: WVWYH63B72E334897 License Plate: X47MKX Address 17: Instruments Labels: 3B0-920-xx5-17.LBL Controller: 3B0 920 927 B Component: KOMBI+WEGFAHRSP VDO V06 Coding: 07235 Shop #: WSC 08207 VCID: 243B00E5A7C3 WVWYH63B72E334897 VWZ7Z0A4505463
3 Faults Found:
00771 - Fuel Level Sensor (G) 30-00 - Open or Short to Plus
01176 - Key 07-10 - Signal too Low - Intermittent 01330 - Central Control Module for Central Convenience (J393) 49-10 - No Communications - Intermittent

Address 19: CAN Gateway Labels: 6N0-909-901-19.LBL Controller: 6N0 909 901 Component: Gateway K<->CAN 0001 Coding: 00004 Shop #: WSC 05314 VCID: F093BCB5A3BB
1 Fault Found:
01330 - Central Control Module for Central Convenience (J393) 49-10 - No Communications - Intermittent

Address 36: Seat Mem. Drvr Labels: 3B1-959-760.LBL Controller: 3B1 959 760 E Component: Sitzverstellung 0301 Coding: 0000000 Shop #: WSC 00000 VCID: 2F11FFC9FE05
5 Faults Found:
65535 - Internal Control Module Memory Error 014 - Defective
01008 - Note; Emergency OFF Switch is Active! 000 - - - Intermittent
00668 - Supply Voltage Terminal 30 002 - Lower Limit Exceeded - Intermittent
01330 - Central Control Module for Central Convenience (J393) 004 - No Signal/Communication - Intermittent
01341 - Control Module in Instrument Panel On Comfort CAN (J285) 004 - No Signal/Communication - Intermittent

VCDS-Lite Self-Diagnosis Log Sunday, 31 May 2020, 20:44:55:28534 Page 4 VIN Number: WVWYH63B72E334897 License Plate: X47MKX Address 46: Central Conv. Labels: 1C0-959-799.LBL Controller: 1C0 959 799 C Component: 81 Komfortgerát HLO 0003 Coding: 00258 Shop #: WSC 05311 VCID: 3701C7A90655
4 Faults Found:
00932 - Electric Window Motor; Drivers Side (V147) 35-00 - -
00933 - Electric Window Motor; Passenger Side (V148) 35-00 - -
00934 - Electric Window Motor; Rear Left (V26) 35-00 - -
00935 - Electric Window Motor; Rear Right (V27) 35-00

Address 56: Radio Labels: 3B7-035-1xx-56.LBL Controller: 3B7 035 180 G Component: Radio NP2 0016 Coding: 04031 Shop #: WSC 08230 VCID: 243B00E5A7C3
5 Faults Found:
00849 - S-contact at Ignition/Starter Switch (D) 78-10 - Missing Messages - Intermittent
01326 - Control Module for Multi-Function Steering Wheel (J453) 49-10 - No Communications - Intermittent
01064 - Terminal 58d; Interior Dimming 78-10 - Missing Messages - Intermittent
00625 - Vehicle Speed Signal 78-10 - Missing Messages - Intermittent
01336 - Data Bus for Comfort System 37-10 - Faulty - Intermittent
 

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Newest VCDS-Lite reading...

Wow! did this formatting get destroyed or what? X47MKX.3.pdf
use the code tags to format it in code
Code:
put VCDS stuff here
I believe your Passat doesn't have a CECM like the Audi cousin, so it isn't that that is shot, but I'm guessing the CCCM under the driver's feet.
Check your plenum drains so that you aren't putting more water into the car. also check the seal/gasket under the ECU. won't dry it out if you keep dumping water into it.

my guess is your CCCM is wet as fuck and needs to be replaced.

Also if you are getting water in via the gasket under the ECU, a lot of your relays are probably messed up and corroded.

how wet is the are around the dead pedal?
 

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Discussion Starter #89
use the code tags to format it in code
Code:
put VCDS stuff here
I believe your Passat doesn't have a CECM like the Audi cousin, so it isn't that that is shot, but I'm guessing the CCCM under the driver's feet.
Check your plenum drains so that you aren't putting more water into the car. also check the seal/gasket under the ECU. won't dry it out if you keep dumping water into it.

my guess is your CCCM is wet as fuck and needs to be replaced.

Also if you are getting water in via the gasket under the ECU, a lot of your relays are probably messed up and corroded.

how wet is the are around the dead pedal?
Cabin interior is dry...not damp at all...though I do see signs of previous dampness...I'll uncover and report back on the CCM...Uncovered the ECU yesterday and all looked okay.
 

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It's the gasket under the bottom of the bottom of ecu box.

Also I have to assume that there are a ton of a-pillar connections in the passat like the a4. It would be behind the trim between the dead pedal and the door.

My b6 a4 (b5.5 passat cousin) had a lot of corrosion in the terminals there.
 

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I am leaning towards CCM ,even though carpet is dry ,but because of the well documented history of water ingress it must be looked at, this is a long thread but I believe he has an immobilizer relay (pre-03) which now even more makes me think you wanna pull the carpet do to age of vehicle.Do you have relay in #12 position on 13 position relay panel? The other thing not only to check BUT to clean is the ground connections under the dead pedal. Salt water from winter goes directly to it like VW planned it.
 

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I had prevented this, from happenig long time ago by using thick rubber mats on the floor.
Sure, but that does nothing to stop the water going behind the dead pedal or down the a-pillar....its not from your shoes/boots... it's from the road spray on the windshield that goes in the plenum then into the cabin, not down the plugged plenum drains.
 

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The no start issue is not caused by the ESS or the CCM. I suggest you forget about these until you have it running.

Check the voltage at fuse #28 while cranking.
(During this test, the fuse must be connected and the engine must be turning.)
 

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Discussion Starter #95
The no start issue is not caused by the ESS or the CCM. I suggest you forget about these until you have it running.

Check the voltage at fuse #28 while cranking.
(During this test, the fuse must be connected and the engine must be turning.)
Started with battery at 12.53 v...




Fuse 28 on 0.4v cranking...11.3
Fuse 29 on 0.4v cranking...11.2
Fuse 34 on 0.7v cranking...11.2v

Where do we go next?
 

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1. The ground wire to the FP. (Make sure it is well grounded and properly connected)
2. The wire from fuse #28 to the FP. (Make sure the wire and connectors are good)
3. The fuel pump.
4. If 11.x Volts is only on one side of the fuse, the fuse is blown.

The above covers all possibilities.
 
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