Question about 1998 Volkswagen Passat

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Transmission Control Module

I have a 99 Passat with the 6cyl in it. Automatic and i need a transmission control module. Anyone no of a place i can purchase a used one?

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We are not a parts service, but try an internet search for used VW parts, there are many VW only wrecking yards, that is your best chance of finding it. Also call VW and see if they sell a rebuilt module.

Posted on Nov 03, 2008

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2005 cts won't sift out of park, press the brake pedal and start the car, just won't shift out of park


You probably have a problem with

Automatic Transmission Shift Lock Control System
The automatic transmission shift lock control system is a safety device that prevents an inadvertent shift out of PARK when the engine is running. The driver must press the brake pedal before moving the shift lever out of the PARK position. The system consists of the following components.
• The automatic transmission shift lock control solenoid
• The brake switch
• The rear integration module (RIM)
• The transmission control module (TCM) or powertrain control module (PCM)
With the ignition ON, battery positive voltage is supplied to the automatic transmission shift lock control solenoid from the ignition 3 relay. The automatic transmission shift lock control solenoid is controlled by the rear integration module. When the rear integration module (RIM) receives a class 2 serial data message from the transmission control module (TCM) or powertrain control module (PCM) indicating that the shift lever is in the PARK position the rear integration module (RIM) grounds the automatic transmission shift lock control solenoid control circuit. This causes the solenoid to energize mechanically locking the shift lever in the PARK position. When the driver presses the brake pedal the rear integration module receives the brake applied signal and turns off the ground to the automatic transmission shift lock control solenoid control circuit. This allows the shift lever to be moved out of the PARK position.

Shift Lever Does Not Move with Brake Pedal Depressed

2
Apply the parking brake and block the wheels.
Turn ON the ignition, with the engine OFF.
Attempt to move the shift lever out of the PARK position.
Does the shift lever move out of the PARK position?
YES - Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems
NO - Go to Step 3
3
Turn OFF the ignition.
Install a scan tool.
Turn ON the ignition, with the engine OFF.
With a scan tool, observe the TCC brake switch parameter in the transmission data display list.
Press and release the brake pedal several times.
Does the TCC brake switch status turn ON and OFF with the brake pedal?
YES - Go to Step 4
NO - Go to Stop Lamps Inoperative in Lighting Systems
4
With a scan tool, observe the brake to shift control parameter in the rear integration module data list.
Press and release the brake pedal several times.
Does the brake to shift control status turn ON and OFF with the brake pedal?
YES - Go to Step 5
NO - Go to Step 8
5
Turn OFF the ignition.
Connect a test lamp between the automatic transmission shift lock control solenoid supply voltage circuit and the automatic transmission shift lock control solenoid control circuit at the automatic transmission shift lock control solenoid.
Turn ON the ignition, with the engine OFF.
With a scan tool, command the brake to shift control ON and OFF several times while observing the test lamp.
Does the test lamp turn ON and OFF with each command?
YES - Go to Step 7
NO - Go to Step 6
6
Test the automatic transmission shift lock control solenoid control circuit for and open or short to battery voltage. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you find and correct the condition?
YES - Go to Step 11
NO - Go to Step 8
7
Inspect for poor connection at the harness connector of the automatic transmission shift lock control solenoid. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.
Did you find and correct the condition?
YES - Go to Step 11
NO - Go to Step 9
8
Inspect for poor connections at the harness connector of the rear integration module (RIM). Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.
Did you find and correct the condition?
Yes - Go to Step 11
NO - Go to Step 10
9
Replace the automatic transmission shift lock control solenoid. Refer to Automatic Transmission Shift Lock Actuator Replacement .
YES - Did you complete the replacement?
NO - Go to Step 11
--
10
Replace the RIM. Refer to Control Module References in Computer/Integrating Systems for replacement, setup, and programming.
YES - Did you complete the replacement?
NO - Go to Step 11
--
11
Operate the system in order to verify the repair.
Did you find and correct the condition?
YES - System OK
NO - Go to Step 2

Mar 25, 2017 | Cadillac CTS Cars & Trucks

Tip

My car does not shift in second gear.


Hi.

The first thing to do is replacing the transmission fluid. Metal debris inside the transmission box gets mixed with fluid and can cause similar problems.

The automatic transmission uses throttle position sensor to determine position and opening of throttle.
IF throttle position sensor is defective, the car may have problems shifting into one or more gears.

The automatic transmission is controlled by an electronic control module, that is energizing a set of solenoids to shift into gears.
The control module is a rectangular box, often located behind the dash and wired to transmission. The solenoids are attached to valve body,inside transmission.

If a solenoid is defective, or if control module is defective, the car may have problems shifting into one or more gears.

Problems concerning transmission control module, TPS and transmission solenoid are usually detectable reading fault codes stored on the car main control module (ECU/ECM).

Transmission problems are often returning a code p0700 after an OBDII scan.

Stored codes can be retrieved using an OBD scan reader.
If the car auto transmission is not shifting into gear, talk to the mechanic about the problem.
Only when the car has a really high mileage, or when there is a factory problem there is need to replace the gearbox.
A damaged gear box at low mileage is rather unusual.

on Oct 23, 2009 | 1988 Jeep Cherokee

1 Answer

2004 pontiac sunfire wont shift out of park


Problem with shift interlock system .
Automatic Transmission Shift Lock Control Description and Operation
The automatic transmission shift lock control system is a safety device that prevents an inadvertent shift out of PARK when the engine is running. The driver must press the brake pedal before moving the shift lever out of the PARK position. The system consists of the following components:
?€¢
The automatic transmission shift lock control solenoid


?€¢
The body control module (BCM)


?€¢
The powertrain control module (PCM)

With the ignition in the ON position, battery positive voltage is supplied to the automatic transmission shift lock control solenoid. The automatic transmission shift lock control solenoid receives a ground from the BCM. When the automatic transmission shift lock control solenoid is energized, the shift lever mechanically locked in the PARK position. When the driver presses the brake pedal the PCM sends a class 2 serial data message to the BCM. The BCM turns OFF the ground control circuit and this de-energizes the automatic transmission shift lock control solenoid. When the automatic transmission shift lock control solenoid is de-energized, the shift lever may be moved out of the PARK position. The BCM determines transaxle shift lever position through a class 2 serial data message from the PCM. The PCM receives inputs from the park/neutral position switch and determines shift lever position. When the BCM receives this information and determines that the shift lever is out of the PARK position, the automatic transmission shift lock control solenoid ground is opened.

1

Did you perform the A Diagnostic System Check - Automatic Transmission Shift Lock Control?
Go to Step 2
Go to Diagnostic System Check - Automatic Transmission Shift Lock Control

2

  1. Turn ON the ignition, with the engine OFF.
  2. Press and hold the brake pedal.
  3. Attempt to move the shift lever out of the PARK position.
Does the shift lever move out of the PARK position?
YES - Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems
NO - Go to Step 3

3

  1. Turn OFF the ignition.
  2. Disconnect the automatic transmission shift lock control solenoid.
  3. Turn ON the ignition, with the engine OFF.
  4. Attempt to move the shift lever out of the PARK position.
Does the shift lever move out of the PARK position?
YES - Go to Step 4
NO - Go to Step 5

4

Test the A/T shift lock control circuit for a short to ground. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you find and correct the condition?
YES - Go to Step 9
NO - Go to Step 6

5

Inspect for poor connections at the harness connector of the automatic transmission shift lock control solenoid. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.
Did you find and correct the condition?
Go to Step 9
Go to Step 7

6

Inspect for poor connections at the harness connector of the body control module (BCM). Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.
Did you find and correct the condition?
Go to Step 9
Go to Step 8

7

Replace the automatic transmission shift lock control solenoid. Refer to Transmission Control Replacement in Automatic Transaxle-4T40-E/4T45-E.
Did you complete the replacement?
Go to Step 9
--

8

Replace the body control module (BCM). Refer to Body Control Module Replacement in Body Control System.
Did you complete the replacement?
Go to Step 9
--

9

Operate the system in order to verify the repair.
Did you find and correct the condition?
System OK
Go to Step 2

Jun 29, 2016 | Pontiac Cars & Trucks

1 Answer

Where is the automatic transmission modular located on 2001 buic centry


Do you mean the transmission control module ? It is incorporated into the engine control module . PCM - powertrain control module .

Powertrain Control Module (PCM) (L36/L67)
Left front of the engine compartment, inside the air cleaner assembly
Engine Controls Component Views in Engine Controls - 3.8L
Powertrain Control Module Connector End Views in Engine Controls - 3.8L
Powertrain Control Module (PCM) (LG8)
Left front of the engine compartment, inside the air cleaner assembly

Oct 04, 2015 | Cars & Trucks

1 Answer

My 2004 Saturn ion 3 has 2 codes coming up u2105 p0700 an it won't go in drive or reverse what could it be


First off you need to understand your vehicle has several control modules on board . The PCM - engine computer , TCM - transmission control module , SRS - air bag module , Anti theft , antilock brakes , An these modules all are able to talk to each other on a communication network , On your vehicle it happens to be the CAN data bus !
The transmission control module (TCM) uses the controller area network (CAN) to signal the engine control module (ECM) that the TCM is requesting malfunction indicator lamp (MIL) illumination. This happens when the TCM has determined that a failure that affects emissions has occurred in the transmission control system. When the ECM receives the correct message from the TCM, DTC P0700 will set.
Which transmission does your vehicle have ?
Automatic Transaxle AF23-5
OR
Automatic Transmission VT25-E
DTC U2105-U2199
The controller area network (CAN) serial data line is a high speed serial data bus used to communicate information between the engine control module (ECM), body control module (BCM), and the transmission control module (TCM). Typical data-transmission speeds must be high enough to ensure the required real-time response is maintained. The CAN serial data line does not communicate with the scan tool via the data link connector (DLC). CAN serial data information is interpreted by the BCM and transmitted to the serial data line by the BCM.
I suggest you take this to GM dealer or some other ASE certified repair shop .

Aug 13, 2015 | Saturn Cars & Trucks

1 Answer

Trouble code po700 dodge 1500


Many vehicles have a control module for the automatic transmission called a transmission control module (TCM). The engine control module (ECM) communicates with the TCM to monitor the automatic transmission for faults. If the TCM detects a fault in the automatic transmission and sets a transmission related fault code, the ECM is informed of this also and sets a P0700 in the ECM memory. This illuminates the Malfunction Indicator Lamp (MIL) to let the driver know there is a problem. If this code is present and the MIL (Malfunction Indicator Lamp) is illuminated that basically means there is at least one transmission code set in the TCM's memory. P0700 is an informational code only. It doesn't point to a direct fault in the engine, only a general fault in the transmission. More diagnosis is necessary to identify what the transmission fault is. This requires a scan tool that will communicate with the transmission module.

Oct 07, 2014 | 2005 Dodge Ram 1500

1 Answer

What does diagnostic code PO0706 and PO700 mean?


OBD II Fault Code
  • OBD II P0706
Fault Code Definition
  • Transmission Range Sensor Circuit Range/Performance
The purpose of the automatic transmission is to match the engine's optimum power and torque characteristics to the driver's desired rate of acceleration and speed by auto-selecting different gear ratios or 'speeds' to power the wheels. The Transmission Range Sensor (also referred to as the PRNDL input and/or neutral safety switch) tells the transmission control module (TCM) and the powertrain control module (PCM) that the transmission is in park, reverse, neutral, drive, low, 2nd, 3rd etc. It is attached directly to the manual valve of transmission, so when the shift lever is moved say from park to drive, the Transmission Range Sensor communicates this critical information to the above mentioned vehicle computer systems.

P0700
Many vehicles have a control module for the automatic transmission called a transmission control module (TCM). The engine control module (ECM) communicates with the TCM to monitor the automatic transmission for faults. If the TCM detects a fault in the automatic transmission and sets a transmission related fault code, the ECM is informed of this also and sets a P0700 in the ECM memory.

May 18, 2013 | 2000 Honda Civic

1 Answer

04 CTS Ignition Key Stuck, but I can remove the key and restart after a battery disconnect


The automatic transmission shift lock control system is a safety device that prevents an inadvertent shift out of PARK when the engine is running. The driver must press the brake pedal before moving the shift lever out of the PARK position. The system consists of the following components.
• The automatic transmission shift lock control solenoid
• The brake switch
• The rear integration module (RIM)
• The transmission control module (TCM) or powertrain control module (PCM)
With the ignition ON, battery positive voltage is supplied to the automatic transmission shift lock control solenoid from the ignition 3 relay. The automatic transmission shift lock control solenoid is controlled by the rear integration module. When the rear integration module (RIM) receives a class 2 serial data message from the transmission control module (TCM) or powertrain control module (PCM) indicating that the shift lever is in the PARK position the rear integration module (RIM) grounds the automatic transmission shift lock control solenoid control circuit. This causes the solenoid to energize mechanically locking the shift lever in the PARK position. When the driver presses the brake pedal the rear integration module receives the brake applied signal and turns off the ground to the automatic transmission shift lock control solenoid control circuit. This allows the shift lever to be moved out of the PARK position.

Step
Action
Yes
No
1
Install a scan tool.
Does the scan tool power up?
YES - Go to Step 2
NO - Go to Scan Tool Does Not Communicate with Class 2 Device in Data Link Communications
2
Turn ON the ignition, with the engine OFF.
Attempt to establish communication with the Powertrain Control Module (PCM) and the Rear Integration Module (RIM).
Does the scan tool communicate with the PCM and the RIM?
YES - Go to Step 3
NO - Go to Scan Tool Does Not Communicate with Class 2 Device in Data Link Communications
3
Important: The engine may start during the following step. Turn OFF the engine as soon as you have observed the Crank power mode.
Access the Ignition Switch parameter in the rear integration module (RIM) inputs data display list.
Rotate the ignition switch through all positions while observing the ignition switch power mode parameter.
Does the ignition switch parameter reading match the ignition switch position for all switch positions?
YES - Go to Step 4
NO - Go to Power Mode Mismatch in Body Control System
4
Select the display DTCs function on the scan tool for the PCM and the RIM.
Does the scan tool display any DTCs for the PCM or the RIM?
YES - Go to Step 5
NO - Go to Symptoms - Automatic Transmission Shift Lock Control
5
Does the scan tool display any DTCs which begin with a "U"?
YES - Go to Diagnostic Trouble Code (DTC) List in Data Link Communications
NO - Go to Step 6
6
Does the scan tool display DTC B1000, B1004, B1007, or B1009?
YES - Go to Diagnostic Trouble Code (DTC) List in Body Control System
No - Go to Step 7
7
Does the scan tool display DTC B1327?
YES - Go to Diagnostic Trouble Code (DTC) List in Engine Electrical
NO - Go to Symptoms - Automatic Transmission Shift Lock Control

This is something best left to the Cadillac dealer !

Mar 18, 2017 | Cadillac CTS Cars & Trucks

2 Answers

Obd2 p0700


Hi John:
DTC P0700 - Transmission Control System Malfunction
Many vehicles have a control module for the automatic transmission called a transmission control module (TCM). The engine control module (ECM) communicates with the TCM to monitor the automatic transmission for faults.

If the TCM detects a fault in the automatic transmission and sets a transmission related fault code, the ECM is informed of this also and sets a P0700 in the ECM memory.

This illuminates the Malfunction Indicator Lamp (MIL) to let the driver know there is a problem. If this code is present and the MIL (Malfunction Indicator Lamp) is illuminated that basically means there is at least one transmission code set in the TCM's memory. P0700 is an informational code only. It doesn't point to a direct fault in the engine, only a general fault in the transmission. More diagnosis is necessary to identify what the transmission fault is. This requires a scan tool that will communicate with the transmission module.

Symptoms of a P0700 DTC may include:
Malfunction Indicator Lamp (MIL) illumination
The transmission may exhibit drivability problems like slipping, etc.

More often then not, the cause of this code is that there is a transmission problem of some kind. The TCM detected the problem and set a code. P0700 means that a fault code is stored in the TCM. However this doesn't rule out the possibility of a failed PCM or TCM (unlikely).

Possible Solutions:
For a P0700 the only real solution is to acquire a scan tool that will communicate with the transmission control module. Extracting this code from the TCM will be the first step in repairing the fault in the transmission.

If the TCM compatible scan tool will not communicate with the Transmission Control Module then that is a good indication that there may be a fault with the TCM itself.

Fee free to contact us if need additional details. Hope this helps; also keep in mind that your feedback is important and I'll appreciate your time and consideration if you leave some testimonial comment about this answer.

Thank you for using Fixya, and have a nice day.

Dec 06, 2011 | 2001 Daewoo Leganza

1 Answer

I have replaced all control modules and my 99 passat wont go in reverse any suggestions. I was told I need a new transmission.


Hi, you didn't mention if you have auto or manual. If it is manual then there no doubt that it is the transmission problem because the linkage is binding up which may require a new transmission as suggested because of the cost of fixing it and probability of it working after fixing it..
If it is automatic, it could possibly be the computer (ECU) which can only be checked by a transmission specialist on both account and if it's not the ECU, then you can start thinking about a new transmission...

May 26, 2011 | 1999 Volkswagen Passat

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