Toyota Tacoma Quiz
2gr-fks Charging

Lost Communication with Alternator Missing Message (P161A87)

In this manual: 2gr-fks Charging
Introduction — 15Maintenance — 8Audio / Video — 94Garage Door Opener — 7Navigation / Multi Info Display — 84Park Assist / Monitoring — 86Brake — 50Brake Control / Dynamic Control Systems — 165Parking Brake — 52gr-fks Charging — 252gr-fks Cooling — 212gr-fks Emission Control — 132gr-fks Engine Control — 322gr-fks Engine Mechanical — 332gr-fks Exhaust — 92gr-fks Fuel — 422gr-fks Ignition — 62gr-fks Intake — 72gr-fks Lubrication — 152gr-fks Starting — 38Ac60e Automatic Transmission / Transaxle — 146Axle — 19Clutch — 20Cruise Control — 168Differential — 50Drive Shaft — 6Propeller Shaft — 23Rc62f Manual Transmission / Transaxle — 34Suspension — 22Tire And Wheel — 39Vf2cm Transfer — 44Can Communication — 45Multiplex Communication — 20Power Distribution — 5Power Steering — 29Steering Column — 29Air Conditioning — 108Door Lock — 88Engine Hood / Door — 16Engine Immobiliser — 47Exterior — 55Horn — 5Interior — 18Interior Panel — 8Lighting — 93Meter / Gauge / Display — 31Mirror — 22Other System — 24Pre-collision — 40Seat — 52Seat Belt — 40Sliding Roof — 26Supplemental Restraint Systems — 139Theft Deterrent — 20Window / Glass — 53Wiper / Washer — 24
~1min read
DESCRIPTION

The ECM communicates with the generator assembly via LIN communication. If a LIN communication error is detected, the ECM stores this DTC.

DTC No.

DTC Detection Condition

Trouble Area

P161A87

Generator assembly or ECM communication stop for about 17 minutes or more with the ignition switch ON.

(1 trip detection logic)
  • Wire harness and connector
  • Generator assembly
  • ECM
WIRING DIAGRAM PROCEDURE PROCEDURE

  1. CHECK CHARGING SYSTEM

(a) Check the charging system (See page ).

NG

REPAIR OR REPLACE CHARGING SYSTEM
OK

  1. CHECK HARNESS AND CONNECTOR (ECM - GENERATOR ASSEMBLY)

(a) Disconnect the E9 ECM connector.

(b) Disconnect the G2 generator assembly connector.

(c) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection

Condition

Specified Condition

E9-34 (LIN) - G2-2 (LIN)

Always

Below 1 Ω

E9-34 (LIN) or G2-2 (LIN) - Body ground

Always

10 kΩ or higher
OK

REPLACE GENERATOR ASSEMBLY
NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

Test yourself

A quick Toyota Tacoma quiz: every answer comes with an explanation and a link to the manual page.