I have a 2001 that has a service engine light but for some reason no reader will connect with my vehicle. Any help would be appreciated.
2001 OBDII
- Thread starter ChrismonDA
- Start date
Do you interior lights function? I ask because Fuse #20 is carries that circuit in addition to the power supply for the OBD port.
A guy here in Charlotte had this happen with his DII a year ago or so.
The diagnostic (OBDII) socket has 16 cavities, but only five are connected to anything in the DII. Two of the five are grounds, and one is specific to diesel trucks. (The photo below shows the position of the diagnostic socket in an RHD truck.)
One of the remaining two is the 12V feed on a purple wire from the passenger compartment fuse box (Fuse 20) via a header to Cavity 16 of the diagnostic socket.
In the other guy's truck, the OBDII connector wasn't getting power. You can probe Cavity 16 with a multimeter (grounding the other multimeter lead) to see if the diagnostic socket is getting power to power your diagnostic tool. The other guy here in town found Cavity 16 was dead. He used an Add-A-Circuit fuse tap and a quick splice like the one pictured to get power from the passenger compartment fuse box to the purple wire behind Cavity 16. That setup has been working great for him.
The diagnostic (OBDII) socket has 16 cavities, but only five are connected to anything in the DII. Two of the five are grounds, and one is specific to diesel trucks. (The photo below shows the position of the diagnostic socket in an RHD truck.)
One of the remaining two is the 12V feed on a purple wire from the passenger compartment fuse box (Fuse 20) via a header to Cavity 16 of the diagnostic socket.
In the other guy's truck, the OBDII connector wasn't getting power. You can probe Cavity 16 with a multimeter (grounding the other multimeter lead) to see if the diagnostic socket is getting power to power your diagnostic tool. The other guy here in town found Cavity 16 was dead. He used an Add-A-Circuit fuse tap and a quick splice like the one pictured to get power from the passenger compartment fuse box to the purple wire behind Cavity 16. That setup has been working great for him.
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