Code p135b. I noticed yesterday P135A and P135B where showing permanent, I thought for sure this was a clue. This code indicates that there is a problem with the voltage supply to the ignition coil in the second bank of cylinders. Code P135B indicates an ignition coil circuit issue. Today we're going to go over a simple fix which may be affecting your GM Hi, I have a 2012 Acadia and about 3 months ago it started having problems. Checked and got 4 codes. They are written to inform these technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. DTC P135B, sometimes indicated as P135B00, is an OBD diagnostic trouble code indicating a manufacturer-specific fault with the vehicle powertrain (Ignition System or Misfire). The codes it threw was a P0300 and a DTC code, multiple misfire code, it would almost die sitting at a stop sign or red. Rough idle, unbalanced RPM, hard shift, traction control/stability track turning off randomly. Also, verify proper ground connections. Learn what Ignition Coil Supply Voltage Circuit Bank 2 means, location and how to repair. coil harness pigtail control circuit short cylinder missfire p124f p135b Jump to Latest 1. The ignition coil is a crucial component in the ignition system, responsible for converting the low voltage from the battery into the high voltage needed to ignite the fuel-air mixture in the engine cylinders. Since coils and spark plugs are good, inspect wiring harnesses for damage or corrosion at cylinders 2 and 6. Repair Information for P135B code. P124F & P135B Code from Ignition Coil harness/connector PLZ HELP. 4K views 1 reply 2 participants last post by brother sprucetree Nov 19, 2025 Repair Information for P135B Chevrolet code. You may get engine trouble code (MIL Light) P0300 which is a "Random Misfire Code". Below are the codes that I have. The P135B diagnostic trouble code for Chevrolet vehicles specifically relates to the Ignition Coil Supply Voltage Circuit for Bank 2. " I have been unable to locate any definitive information about this code or what might have caused it to trigger. The diagnostic trouble code P135B refers to an issue with the Ignition Coil Supply Voltage Circuit in Bank 2 of the vehicle's engine. GM bulletins are intended for use by professional technicians, NOTa "do-it-yourselfer". Check the PCM connectors for secure fit and test coil driver signals with a scan tool. The P135B GMC code refers to an issue with the Ignition Coil Supply Voltage Circuit on Bank 2 of the vehicle's engine. which is identified as "Manufacturer Contrl Ignition System or Misfire. Any suggestions would greatly help. Codes from the reader 1) P135A - Ignition Coil Supply Voltage Circuit Bank 1 2) P135B - Ignition Coil Supply Voltage Circuit Bank 2 C7 Tech/Performance - P135b code - how to track it down? - p135b - Ignition Coil Supply Voltage Bank 2 The car barely runs. THIS IS I do not have access to a good scanner to retrieve that code though. DTCs P135A, P135B Set Attention: Proceed with this EI ONLY if the customer has commented about this concern AND the PIE number is listed in the Global Warranty Management / Investigate History link (GWM/IVH). Nov 9, 2025 · Découvrez les causes du code P135B Chevrolet : fusible de bobine dallumage défectueux, circuit électrique défaillant ou problème du module de commande du mot Nov 19, 2025 · P135B is my main issue, I replaced the fuse and tested the harness so I don’t understand what the issue is and why my truck won’t start. I can't clear them and need to know where to start in correcting them, since I can't have the car inspected until the codes are gone. Chevrolet Traverse Questions - What does the code p135b mean or indicate on a Chevy Traverse 2012? - CarGurus What does the code p135b mean or indicate on a Chevy Traverse 2012? - ^ title says it all The diagnostic trouble code P135B refers to an issue with the Ignition Coil Supply Voltage Circuit in Bank 2 of the vehicle's engine. It feels like it's running on 4 cylinders which may make sense if Bank 2 isn't getting any voltage. If the customer has not commented about this condition or the EI does not show in GWM/IVH, disregard the PI and proceed with diagnostics found in published service information. This code indicates that there is a problem with the voltage supply to the ignition coil in the second bank of the engine. The only code showing is "P135B". bzws, d4r4l, 18hui, 7btcw3, et50, 2j6p, jkly, tm4ko, hknca, qi5glk,