FIXES OF THE WEEK

The fixes below are examples of head scratchers posted by our Direct-Hit customers. For a chance to win a free pizza lunch for your shop, post your unique fixes in Direct-Hit. Just look up the vehicle you're working on, click on Post Fix at the top right and tell us the problem and what you did to fix it.  

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Posted Fix Information

ASIAN FIX
Posted By: V-Line Autoworks, Vic Kesh
Problem Description:
Vehicle came to the shop with the air bag light on and trouble codes 85-61 and 81-61 present. Under the passenger's seat there is...
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Posted Date:
01/29/2015
Confirmed Fix:
Repaired SRS Unit Wiring
Problem Description:
Vehicle came to the shop with the air bag light on and trouble codes 85-61 and 81-61 present. Under the passenger's seat there is the weight sensor, it is a black box with three connectors. The bottom connector is a six pin connector that has a Yellow/Green (YEL/GRN) wire and it is supposed to have twelve volts. This wire was not getting any power. Traced the wire to connector C631 at the driver's side center console, by the driver's leg. It is necessary to open the side panel to see a gray and white connector. The white connector is the one that has the YEL/GRN wire and its twelve pin connector. Pin number seven had power at the female end, but it wasn't making it to the passenger's side. Followed the wire under the driver's seat, removed the seat, pulled back the carpet and followed the YEL/GRN wire to where the two wires connected to one, and this is where the break was. Repaired the wire and the air bag light turned off.
Vehicle Description:
2004 Acura MDX Touring 3.5L
Category:
~
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EUROPEAN FIX
Posted By: European Auto Works, John Beckius
Problem Description:
Customer complains that the headlights are pointed to the ground. Fault codes 0024 and 0025 for both level sensors are...
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Posted Date:
01/22/2015
Confirmed Fix:
Repaired Rear Suspension Level Sensor Wiring
Problem Description:
Customer complains that the headlights are pointed to the ground.
Fault codes 0024 and 0025 for both level sensors are present. Note: ""master"" sensor as displayed in the scan tool is the rear sensor, ""slave"" is the front.
Read out live data and found both signals unstable.
When attempting to clear codes from both headlamps, the actuators would buzz and hum as if confused.
Checked power to the sensor at pin 5 using a chassis ground and both grounds at pins 1 and 2 are okay, battery voltage.
Checked the signal using an oscilloscope at pins 5 and 2 and found 2 square waves from the PWM signal. Disconnect the sensor linkage and one can see signal duration change. These sensors are NOT potentiometers that emit a variable voltage. While monitoring the signal at the front (slave) sensor, one could see a square wave from the rear sensor (sensor wires are spliced together) distort intermittently.
Checked power and grounds at the rear sensor and found varying supply voltage from fuse F54 (located on the driver's side fuse panel at the dash). Removed the wiring insulation and found a broken/corroded power wire. The wires had been rubbed by the plastic wire loom. Repaired all wires to eliminate future problems.
Reinstalled the connectors and linkage, cleared the codes and rechecked operation of the lights. This vehicle has been repaired.
Vehicle Description:
2005 Porsche Cayenne S 4.5L Vin B
Category:
Lighting
   Head Lights
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GM FIX
Posted By: R P M Auto LLC, Identifix User
Problem Description:
Engine will not crank over, no check engine light on, no ECM or TCM communication, codes U3106 and U2105 stored in BCM, no fuel...
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Posted Date:
11/26/2014
Confirmed Fix:
Repaired Ground G107
Problem Description:
Engine will not crank over, no check engine light on, no ECM or TCM communication, codes U3106 and U2105 stored in BCM, no fuel level reading.
After checking high speed communication lines, checked powers and grounds at the ECM. No ground was present on pin 73 of connector X2, circuit 451.
Found a loose terminal mounting bolt at G107 under the throttle body and repaired it.
Engine now starts and runs normally.



Vehicle Description:
2009 Chevrolet Malibu LT 3.6L Vin 7
Category:
Chassis Electrical
   Instruments/Meters/Indicators
Engine Performance
   Check Engine Light (MIL)
   Scan Tool/ECU Communication
   Starting
Starting and Charging
   Cranking
Transmission (Automatic)
   Scan Tool/ECU Communication
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CHRYSLER FIX
Posted By: William's #1 Auto Repair, William Perry
Problem Description:
The engine stalls. No trouble codes in the Powertrain Control Module (PCM).  Was fiinally able to duplicate the stall...
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Posted Date:
01/22/2015
Confirmed Fix:
Repaired Crankshaft Position (CKP) Sensor Connector
Problem Description:
The engine stalls. No trouble codes in the Powertrain Control Module (PCM).
Was fiinally able to duplicate the stall problem and this time got a P0340 Camshaft Position (CMP) Sensor code.
Performed a pin continuity test on the Gray wire at the Crankshaft Position (CKP) Sensor and had erratic ohm readings.
Replaced both halves of the CKP connector and that corrected the problem.
Vehicle Description:
2000 Jeep Cherokee Classic 4.0L Vin S
Category:
Engine Performance
   Starting
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FORD FIX
Posted By: Roger's Auto Repair Center, Dean Bromante
Problem Description:
The customer came in complaining of a humming noise from the rear speakers. The noise was present even with the radio volume...
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Posted Date:
01/14/2015
Confirmed Fix:
Replaced Radio Amplifier
Problem Description:
The customer came in complaining of a humming noise from the rear speakers. The noise was present even with the radio volume turned down and the radio faded to the front speakers. Located the amplifier under the rear package deck and tested. Found the amplifier to be bad and causing a noise throuigh the rear speakers only. Removed and replaced the amplifier and the noise went away.
Vehicle Description:
2004 Ford Thunderbird Pacific Coast Roadster 3.9L Vin A
Category:
Chassis Electrical
   Entertainment System
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