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Message: Instrument Cluster Issue - 986 Boxster
Changed By: Seadweller
Change Date: August 16, 2018 05:41PM
Instrument Cluster Issue - 986 Boxster
Change Date: August 16, 2018 05:41PM
Instrument Cluster Issue - 986 Boxster
Greetings!
New to the forum, but not new to Porsche!
I have a '98 Boxster with under 40K miles. The other day while driving it, out of the blue, all of the idiot lights began flashing on and off, and the gauges went dead. It almost acts like it's on a turn signal relay. The fuel gauge will "twitch" on occasion when the idiot lights flash.
Here's a video of it in action: https://youtu.be/4DezdcUzGAg
I've gone through a bunch of troubleshooting, but I've hit a wall. Battery is fine, alternator/regulator are fine, B1, B10 and E1 fuses are fine, everything else electrically in the car works perfectly. I pulled the cluster to make sure the connections were sound, and they are. I figured it had to be the ignition switch, so I replaced it with a new one but it didn't correct the issue.
The one thing I found that has stopped me in my tracks is the following:
1. The voltage at the B1 fuse with the ignition off is 11.2V
2. The voltage at the B1 fuse with the ignition on is 9.7V
3. The voltage at the B1 fuse with the engine on is 10.7V
If I pull the B10 fuse, the voltage goes up at the B1 fuse location by 1V. Voltage at other fuses on the panel is 12.7V, including the B10 fuse location, so somehow, there's a drop in voltage at B1 which of course feeds the cluster.
I assume the low voltage is causing the issue, but I'm not certain.
Any insight would be most appreciated!!!!!
New to the forum, but not new to Porsche!
I have a '98 Boxster with under 40K miles. The other day while driving it, out of the blue, all of the idiot lights began flashing on and off, and the gauges went dead. It almost acts like it's on a turn signal relay. The fuel gauge will "twitch" on occasion when the idiot lights flash.
Here's a video of it in action: https://youtu.be/4DezdcUzGAg
I've gone through a bunch of troubleshooting, but I've hit a wall. Battery is fine, alternator/regulator are fine, B1, B10 and E1 fuses are fine, everything else electrically in the car works perfectly. I pulled the cluster to make sure the connections were sound, and they are. I figured it had to be the ignition switch, so I replaced it with a new one but it didn't correct the issue.
The one thing I found that has stopped me in my tracks is the following:
1. The voltage at the B1 fuse with the ignition off is 11.2V
2. The voltage at the B1 fuse with the ignition on is 9.7V
3. The voltage at the B1 fuse with the engine on is 10.7V
If I pull the B10 fuse, the voltage goes up at the B1 fuse location by 1V. Voltage at other fuses on the panel is 12.7V, including the B10 fuse location, so somehow, there's a drop in voltage at B1 which of course feeds the cluster.
I assume the low voltage is causing the issue, but I'm not certain.
Any insight would be most appreciated!!!!!
Original Message
Author: SeadwellerDate: August 16, 2018 05:39PM
Instrument Cluster Issue - 986 Boxster
Greetings!
New to the forum, but not new to Porsche!
I have a '98 Boxster with under 40K miles. The other day while driving it, out of the blue, all of the idiot lights began flashing on and off, and the gauges went dead. It almost acts like it's on a turn signal relay. The fuel gauge will "twitch" on occasion when the idiot lights flash.
Here's a video of it in action: https://youtu.be/4DezdcUzGAg
I've gone through a bunch of troubleshooting, but I've hit a wall. Battery is fine, alternator/regulator are fine, B1, B10 and E1 fuses are fine, everything else electrically in the car works perfectly. I pulled the cluster to make sure the connections were sound, and they are. I figured it had to be the ignition switch, so I replaced it with a new one but it didn't correct the issue.
The one thing I found that has stopped me in my tracks is the following:
1. The voltage at the B1 fuse with the ignition off is 11.2V
2. The voltage at the B1 fuse with the ignition on is 9.7V
3. The voltage at the B1 fuse with the engine on is 10.7V
If I pull the B10 fuse, the voltage goes up at the B1 fuse location by 1V. Voltage at other fuses on the panel is 12.7V, including the B10 fuse location, so somehow, there's a drop in voltage at B1 which of course feeds the cluster.
Any insight would be most appreciated!!!!!
New to the forum, but not new to Porsche!
I have a '98 Boxster with under 40K miles. The other day while driving it, out of the blue, all of the idiot lights began flashing on and off, and the gauges went dead. It almost acts like it's on a turn signal relay. The fuel gauge will "twitch" on occasion when the idiot lights flash.
Here's a video of it in action: https://youtu.be/4DezdcUzGAg
I've gone through a bunch of troubleshooting, but I've hit a wall. Battery is fine, alternator/regulator are fine, B1, B10 and E1 fuses are fine, everything else electrically in the car works perfectly. I pulled the cluster to make sure the connections were sound, and they are. I figured it had to be the ignition switch, so I replaced it with a new one but it didn't correct the issue.
The one thing I found that has stopped me in my tracks is the following:
1. The voltage at the B1 fuse with the ignition off is 11.2V
2. The voltage at the B1 fuse with the ignition on is 9.7V
3. The voltage at the B1 fuse with the engine on is 10.7V
If I pull the B10 fuse, the voltage goes up at the B1 fuse location by 1V. Voltage at other fuses on the panel is 12.7V, including the B10 fuse location, so somehow, there's a drop in voltage at B1 which of course feeds the cluster.
Any insight would be most appreciated!!!!!