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Automechanika Frankfurt 2014 Wrap Up: Photo Gallery

Aftermarket News Managing Editor Mark Phillips represented the Babcox Media team at Automechanika Frankfurt 2014. You can catch up on a lot of last week's news from the show at Aftermarket News or the Counterman Twitter account or just take a look...

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Auto Care Marketing: Price Sensitive vs. Fear Sensitive

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Work Smarter With Procedures, Measurement And Accountability

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Vehicle: 2001 Volkswagen Passat GLX, 2.8L Complaint: The customer says the vehicle will not start. Cause: Confirmed the customer’s complaint and found the vehicle did not start. Connected a scan tool and found the following codes: • 17978...

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Audi: Vibrates at Idle

Complaint The customer says that the check engine light is on and that the vehicle vibrates at idle. Cause The customer’s complaint is confirmed, with the vehicle vibrating at idle, but the vibration was not felt at high speeds. A scan tool found...

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Step-by-Step Lexus Fuel Pump Replacement

We will use a third-generation 2006 Lexus LS430 as our case study for this fuel pump assembly replacement. First, discharge the fuel system pressure, disconnect the negative battery terminal and drain the fuel. Be sure to remove the rear seat cushion...

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Nissan Maxima Brake Job Tips

Called the four-door sports car by Nissan, the 2004-2008 Maxima brake system is easy to service with very few complaints of brake noise or pulsation. The system used the same brake pads, rotors and calipers on all models. There were some changes in...

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Get Inside the Mind of a Modern Transmission

The transmission game has changed. Solenoids, sensors and computers have replaced vacuum lines, governors and kick down cables on modern automatic transmissions. The tools have also changed: Scan tools, scopes and meters have replaced pressure and...

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Saturn: Hesitation Between 35-50 mph

Condition Some customers may comment on a flat spot or hesitation between 35-50 mph (56-80 km/h) speed range. Cause The existing transmission calibration is programmed to maximize fuel economy and requires a greater throttle input than some customers...

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Midtronics Launches Informational Microsite

  Midtronics, Inc. has launched an informational microsite — or mini website — to provide customers with detailed information about the company’s newest diagnostic platform — the DSS-7000 Battery Service Diagnostic System. The microsite...

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German Tool Specialist KC Tool Announces Addition of Gedore Tools

As of August 1 KC Tool became the first certified reseller of Gedore Tools in the United States already adding more than 2,500 Gedore tools to its selection of German made tools. KC Tool plans to add an additional 6,000 Gedore Tools over the next few...

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United Stationers Expands Into Auto Aftermarket

United Stationers announced Sept. 11 that its wholly owned subsidiary, United Stationers Supply Co., signed an agreement to acquire MEDCO, a U.S. wholesaler of automotive aftermarket tools and supplies, and its affiliates including G2S Equipment de Fabrication...

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Home Electrical Battery Tech Tip: Chevy Malibu Starts and Stalls

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Vehicles affected:
Chevrolet Malibu: 1997-’99 2.4L, 1997-2003 3.1L and 2004 Malibu 2.2L and 3.5L.

Symptom:
Vehicle will start and then stall. Security indicator on the dash is on. DTC P1626, P1630 and/or P1631.

Problem 1 of 3:
The Body Control Module (BCM) failed to recognize the signal from the ignition lock cylinder.

Test & Fix:
A scan tool should indicate a DTC P1626, P1630 or P1631 stored in the Powertrain Control Module (PCM). The flow chart for each code will direct a scan tool to be used to access BCM codes. This is the best way to perform diagnostics on this problem.

If using a scan tool that is not capable of retrieving BCM codes or viewing data, try the following procedure. Disconnect the wires from the ignition lock cylinder. Turn the ignition key to the Key On, Engine Off (KOEO) position. Using a voltmeter, check voltage on the white wire, at the BCM, to ground. The voltage should read 12 volts.

Then check the voltage on the yellow wire, at the BCM, to ground. This should read 5 volts. Next check the black wire, at the BCM, being sure there is a good ground on this wire.

If there is a loss of ground on the black wire or the voltage is missing on the white or yellow wires, check the power and ground for the BCM and the connections at the BCM. If powers, grounds and connections are OK, the BCM will need to be replaced.

Note: When you remove the BCM, first disconnect connector C3 before you disconnect the remaining connectors. When you re-install the BCM, connect connector C3 last. Connector C3 contains the BCM power and ground sources. If the voltages are correct, proceed to step 2.

Problem 2 of 3:
The ignition lock cylinder fails to change the voltage on the yellow wire.

Test & Fix:
With the ignition lock cylinder electrically reconnected, back-probe the yellow wire with the positive lead of the voltmeter and connect the negative lead to a known-good ground. Insert the ignition key in the lock cylinder, rotating the key to the start position, then release the key, allowing it to return to the KOEO position.

During the time the key was rotated to the start position then released to the KOEO position, the voltage on the yellow wire should change from 5 volts to a lower value. Because there are 10 different voltage values, we are unable to give a specific voltage value. However, what the voltmeter should indicate is a change in voltage value. If this change in voltage did not take place, replace the ignition lock cylinder. For the theft system relearn procedure, go to step 3.

Problem 3 of 3:
A component related to the theft system, BCM, PCM or ignition lock cylinder has been replaced and the password needs to be re-learned.

Test & Fix:
Password programming can be done using the following procedure:

1. Ensure the vehicle’s battery is fully charged.

2. Use a scan tool to clear any diagnostic trouble codes from the PCM and BCM.

3. Starting with the ignition switch in the Off position, momentarily crank the engine and leave the key in the Run position while observing the security indicator. In 10 minutes the security indicator should turn off. Rotate the key to the Off position for five seconds.

4. Repeat step 3 two more times.

5. The fourth time the engine is cranked, the engine should start and the BCM and PCM will have learned the new password.

6. Clear the BCM and PCM trouble codes again.

Courtesy of Identifix, Inc.

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