Toyota Code C1391/69

Toyota Code C1391/69

The Toyota Code C1391/69 is an accumulator leak malfunction code that is issued when either of the following is detected: an accumulator pressure sensor input that does not increase before braking or while the pump motor is operating, or an accumulator pressure sensor input reduction rate that exceeds the specification before braking and while the

Toyota Code P0354

Toyota Code P0354

The Toyota Code P0354 is an important diagnostic code used to identify a problem within the ignition system. This code indicates an issue with the Ignition Coil “D” Primary / Secondary Circuit and that the Electronic Control Module (ECM) is not receiving the IGF signal while the engine is running. It is important to understand

Toyota Code P0139

Toyota Code P0139

The Toyota Code P0139 is a common fault code that appears when a malfunction is detected in the oxygen sensor circuit slow response (Bank 1 Sensor 2). This code is triggered when the HO2 sensor voltage does not drop below 0.2 V immediately after fuel cut starts, or when the voltage does not drop from

Toyota Code P0AA6-614

Toyota Code P0AA6-614

Toyota’s Code P0AA6-614 is an indication of a Hybrid Battery Voltage System Isolation Fault, which is when the insulation resistance of the high-voltage DC area has decreased. This issue can be caused by a variety of components, including the hybrid vehicle transaxle assembly, frame wire, hybrid vehicle converter, hybrid battery junction block assembly, No. 2

Toyota Code B2798/99

Toyota Code B2798/99

Toyota Code B2798/99 is a communication malfunction that can cause your car to function improperly. This code can be caused by a variety of issues ranging from the key, transponder key coil, transponder key amplifier, wire harness, and even the ECM. Understanding what can cause the B2798/99 code is the first step in diagnosing the

Toyota Code B1242

Toyota Code B1242

When it comes to Toyota vehicles, keeping up with maintenance and repairs is key for a long-lasting and reliable ride. Recently, Toyota has been experiencing issues with the code B1242, which is a Wireless Door Lock Tuner Circuit Malfunction. This issue can be caused by a variety of factors, such as an electrical key antenna,

Toyota Code P0A7F-123

Toyota Code P0A7F-123

Toyota Code P0A7F-123 is a code related to Hybrid Battery Pack Deterioration. It is associated with the Toyota make and is triggered when the following conditions are not present: TMC’s intellectual property and other conditions belonging to TMC’s intellectual property. Research has demonstrated that HV battery assembly and battery smart unit can be the causes

Toyota Code C1405

Toyota Code C1405

Toyota Code C1405 is open or short in the front speed sensor RH circuit, which various issues can cause. These issues range from the front speed sensor RH/LH, the speed sensor circuit, or the brake actuator assembly (Skid control ECU). This can be a difficult code to diagnose and fix, as multiple issues can cause

Toyota Code P0025

Toyota Code P0025

The Toyota Code P0025 is an error code that is generally produced when the exhaust valve timing is not adjusted according to the valve timing retard range when the engine is running at a speed of 500-4000 RPM and between ECT 75 to 100°C (167 to 212°F) and battery voltage 11 V or more. Many

Toyota Code P0776

Toyota Code P0776

The Toyota Code P0776 indicates a shift solenoid valve SL2 stuck ON or a brake control valve malfunction. This can prevent the vehicle from shifting to the 5th and 6th gears, as the ECM will determine there is a malfunction if it directs the transmission to these gears, but the actual gear is only shifted

Toyota Code U0327

Toyota Code U0327

The Toyota Code U0327 is indicative of software incompatibility with the Vehicle Security Control Module. The issue is that there is no communication from the certification ECU. This issue can be caused by various things, such as a faulty power source circuit of the certification ECU, or perhaps an issue with the certification ECU itself,