2020 Toyota Highlander Repair Guides

P06002020 Toyota Highlander P0600 — Internal Control Module Serial Communication Failure Diagnosis & Fix

Complete guide to diagnosing and fixing the P0600 (Internal Control Module Serial Communication Failure) error code on your 2020 Toyota Highlander. Includes step-by-step instructions, repair costs, and expert tips.

Advanced

4-8 hours

P06052020 Toyota Highlander P0605 — Internal Control Module ROM Error Diagnosis & Fix

Complete guide to diagnosing and fixing the P0605 (Internal Control Module ROM Error) error code on your 2020 Toyota Highlander. Includes step-by-step instructions, repair costs, and expert tips.

Advanced

4-8 hours

P06172020 Toyota Highlander P0617 — Starter Relay Circuit High Diagnosis & Fix

Complete guide to diagnosing and fixing the P0617 (Starter Relay Circuit High) error code on your 2020 Toyota Highlander. Includes step-by-step instructions, repair costs, and expert tips.

Easy

1-2 hours

P08062020 TOYOTA HIGHLANDER P0806 — Clutch Release Switch Range Diagnosis & Fix

Complete guide to diagnosing and repairing P0806 in 2020 TOYOTA HIGHLANDER. Clutch Release Switch Circuit Range/Performance Expert repair tips and troubleshooting steps.

Moderate

2-4 hours

P08152020 Toyota Highlander P0815 — Overdrive Off Switch Circuit Diagnosis & Fix

P0815 indicates an issue with the overdrive cancel switch, affecting fuel economy and transmission wear.

Easy

30 min-1 hour

P08162020 Toyota Highlander P0816 — Clutch Temperature Warning Circuit Diagnosis & Fix

The clutch temperature sensor has triggered a warning, indicating excessive heat buildup.

Advanced

1-2 hours

P08432020 Toyota Highlander P0843 — Transfer Case Motor Circuit High Diagnosis & Fix

The transfer case motor circuit is showing abnormally high voltage.

Advanced

2-3 hours

P08712020 Toyota Highlander P0871 — Overdrive Pressure Switch Performance Diagnosis & Fix

The overdrive pressure switch is not responding within expected parameters.

Moderate

1-2 hours

P11172020 Toyota Highlander P1117 - ECT CIRCUIT INTERMITTENT Diagnosis & Fix

Expert diagnosis and repair guide for P1117 (ECT circuit intermittent/erratic) in 2020 Toyota Highlander. Includes wiring checks, sensor testing, and module communication diagnostics.

Moderate

1-3 hours

P11682020 Toyota Highlander P1168 - FUEL PRESSURE REGULATOR CIRCUIT Diagnosis & Fix

Expert diagnosis and repair guide for P1168 (Fuel pressure regulator circuit malfunction) in 2020 Toyota Highlander. Includes wiring checks, sensor testing, and module communication diagnostics.

Advanced

3-5 hours

P11942020 Toyota Highlander P1194 - FUEL TANK TEMPERATURE SENSOR CIRCUIT Diagnosis & Fix

Expert diagnosis and repair guide for P1194 (Fuel tank temperature sensor circuit malfunction) in 2020 Toyota Highlander. Includes wiring checks, sensor testing, and module communication diagnostics.

Advanced

3-5 hours

P16972020 Toyota Highlander P1697 — Engine Control Module Reset Error Diagnosis & Fix

Learn how to diagnose and fix OBD-II code P1697 (Engine Control Module Reset Error) in your 2020 Toyota Highlander. Step-by-step troubleshooting guide with voltage diagnostics and module programming tips.

Moderate

2-3 hours

P17772020 Toyota Highlander P1777 — Transmission Fluid Pressure Switch Fault Diagnosis & Fix

Learn how to diagnose and fix OBD-II trouble code P1777 (Fluid pressure switch circuit fault) in your 2020 Toyota Highlander. Step-by-step repair guide with troubleshooting tips.

Moderate

30-60 minutes