circuit

  1. Lewis

    2016 Toyota Rav4 with 7.5 amp ECU-IG No. 3 fuse blown

    If you run across a 2016ish (+,-) Toyota Rav4 and its blowing the 7.5 amp ecu-ig no.3 fuse, them you may want to check the AD1 connector located under driver side headlight that would power the front bumper sonar sensors and millimeter wave radar if it was equipped. Check for corrosion causing...
  2. Dread Pirate Roberts

    2012 Toyota Tacoma Air Injection Pumps and Air Switching Valves Special Service Campaign SSC 20TC01

    Please see Special Service Campaign 20TC01 Condition: There is a possibility that moisture in the air may cause a filter in the vehicle emissions system to degrade. This degradation could cause damage to other parts of the vehicle emission system and illuminate the check engine light...
  3. Lewis

    2020 Toyota Corolla with codes P158549 P158649 P158504 C052096 B1798 and/or B1650

    If you have a 2020 Toyota Corolla with codes P158549 P158649 P158504 C052096 B1798 and/or B1650 stored then you may need an updated center air bag sensor. The part number may change but looking at part# 89170-02N50 with serial number 4th digit K=year 2020 the next digit is the month produced...
  4. MG

    2020 Toyota Highlander and Highlander Hybrid Loss of Air Conditioning Cooling B1423 Code T-SB-0127-20

    Please see T-SB-0127-20 Applicability: 2020 Highlander, Highlander Hybrid Introduction: Some 2020 model year Highlander and Highlander Hybrid vehicles may experience a sudden loss of air conditioning cooling with Diagnostic Trouble Code (DTC) B1423 (Open in Pressure Sensor Circuit/Abnormal...
  5. MG

    2018-2019 Toyota Highlander Hybrid MIL ON With DTC P107B T-SB-0050-20

    Please see T-SB-0050-20 Applicability: 2018-2019 Toyota Highlander Hybrid Introduction: Some 2018 – 2019 model year Highlander Hybrid vehicles may exhibit a MIL ON condition with Diagnostic Trouble Code (DTC) P107B (Fuel Rail Pressure Sensor “B” Circuit Range/Performance). Follow the Repair...
  6. MG

    2020 Toyota Vehicles A25A Engines - MIL ON and/or Coolant Leak from Water Pump T-TT-0614-20

    Please see Tech TipT-TT-0614-20 APPLICABLE VEHICLES: 2020 Avalon Hybrid 2020 Highlander Hybrid 2020 RAV4 2020 Camry 2020 RAV4 Hybrid 2020 Camry Hybrid CONDITION: Some 2020 model year models equipped with A25A-FKS or A25A-FXS engine may exhibit a MIL ON with one or more of the following DTCs...
  7. MG

    2021 Toyota Tacoma DTC B14C0, B14C1 Present on Vehicles without Seat Heaters Tech Tip T-TT-0622-20

    Please see Tech Tip T-TT-0622-20 APPLICABLE VEHICLES: 2021 Toyota Tacoma CONDITION: Some 2021 model year Tacoma vehicles equipped with Dual-Zone Automatic Climate Control without the Seat Heater Option may have DTC B14C0 and B14C1 (Right/Left Front Seat Heater Circuit) stored in the Air...
  8. MG

    2019 MY RAV4 Hybrid AWD Resolver-R Not Adjusted on MID T-TT-0534-19

    Please see Tech Tip T-TT-0534-19 APPLICABLE VEHICLES: 2019 RAV4 Hybrid AWD CONDITION: RESOLVER-R NOT ADJUSTED on MID displays all the time. This is due to MG ECU logic during production. The zero-point value for the MGR was not learned. 3 DTCs may be stored: P1C5E19 (Drive Motor "B" Inverter...
  9. MG

    2014-2020 Toyota 4Runner ABS Light ON with codes C0226, C0236, C0246 and C0256

    Please see Tech Tip T-TT-0597-20 here... Condition: Some 2014-2020 model year 4Runner vehicles may experience the ABS Light ON with DTC C0226, C0236, C0246 and C0256 stored current in the ABS system. Recommendations: 1. Inspect the ABS connector for signs of damage. If OK, go to step 2. 2. Use...
  10. OishiiJPN

    2018-2020 Toyota Rav4, Camry or Corolla Maintenance Light will not Reset P268115

    If you get a customer concern that the maintenance light wont reset please check the message on the cluster again to make sure it reads "Engine Maintenance Required". If that is the case, please pull codes and if you see code P268115 Engine Coolant Bypass Valve Circuit Short to Battery or Open...
  11. Lewis

    2016-2018 Toyota RAV4 Hybrid with code P0A45 Drive Motor “B” Position Sensor Circuit

    Some 2016 – 2018 model year RAV4 Hybrid vehicles may exhibit a hybrid system warning message MIL ON condition with Diagnostic Trouble Code (DTC) P0A45 (Drive Motor “B” Position Sensor Circuit) present. Follow the Repair Procedure in T-SB-0079-19 bulletin to address this condition. Replace...
  12. Dread Pirate Roberts

    2018 Toyota Tundra and Sequoia Center Airbag Sensor Assembly Software Update Recall J0H

    Recall Letter You can check the status of any Recall on your Toyota here. Subject: Safety Recall J0H – Remedy Notice 2018 Model Year Sequoia Certain 2018 Model Year Tundra Center Airbag Sensor Assembly Software Update On February 20, 2018 Toyota filed a Noncompliance Information Report...
  13. Lewis

    2016-2017 Toyota Tundra with SRS Code B1868

    If you run across this code on a Toyota Tundra, check and see if the customer is using a non OEM phone charger (like a cheap one from a gas station), these can be the cause of this code. DTC B1868 Short in Knee Airbag(P side) Squib Circuit (to +B)
  14. Lewis

    2016-2017 Toyota Tacoma Panel Fuse Open

    If you have a 2016-2017 Toyota Tacoma and the Panel Fuse keeps blowing then check the (both) rear door B pillar harnesses for chaffed wiring...(this applies also if you have the 20 amp Door Lock fuse blowing when you use door locks)
  15. Lewis

    2015 Toyota Corolla with code P2420 Switching Valve Control Circuit High

    If you run across a 2015 Toyota Corolla with a P2420 Evaporative Emission (EVAP) Switching Valve Control Circuit High code stored in the ECM then a quick check will want to make is to be sure that the wires are not damaged in the back of the trunk. The large/heavy trunk liner can shift forwards...
  16. Lewis

    2016-2017 Toyota Tacoma Starts then Dies

    If you run across a 2016-2017 Toyota Tacoma and the customer concern is that it starts and then dies with codes P062D13 Fuel Injector Driver Circuit Performance Bank 1 Circuit Open and/or P123513 High Pressure Fuel Pump Circuit Open. Then you will want to check the circuit and if it's good, the...
  17. Lewis

    2013 Toyota 4Runner P0351 and use of Aftermarket Coils

    If you have a Toyota vehicle with COP (Coils over Plugs) and you have all these codes stored- P0351,P0352,P0353,P0354,P0355 andP0356 Ignition coil Primary/Secondary Circuit, check and see if you have any aftermarket coils installed on the vehicle that may be causing all these codes. I will...
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