PowertrainP187A

Caution

Severity: Caution - get it checked when you can

Transfer Case Control Module System Voltage Low - Rear Locking Differential Disabled

10 brands affected · Description from Land Rover data.

Key terms: Control module: a small computer that runs one part of the car · Powertrain: engine, transmission and emissions

Safety: This code relates to the charging system. The battery may go flat and the car may stall.

1What it means in plain English

The engine or powertrain control system has stored a fault that does not have specific guidance in this database yet.

2Common causes

Sensor or actuator fault
Wiring or connector fault
Vacuum or intake leak
Fuel or ignition problem
Control module fault

3Can I drive?

Caution · drive with care

The electrical system may fail and the battery may go flat, risking a stall. If the battery or charging warning light is on, drive straight to a workshop.

This page gives general information. It is not professional advice. For a definite diagnosis and a repair quote, ask a qualified mechanic to inspect the car.

4Brand data 10

Brand	Code	Description	System
Daewoo	P187A	No description available	Powertrain
EOBD	P187A	Girvelger 1 Brand	Powertrain
GM	P187A	No description available	Powertrain
Holden	P187A	Transmission Range Selector Switch 12 Circuit Performance Brand	Powertrain
Land Rover	P187A	Transfer Case Control Module System Voltage Low - Rear Locking Differential Disabled Brand	Powertrain
Mitsubishi	P187A	Gear blocked Brand	Powertrain
Opel	P187A	No description available	Powertrain
Peugeot	P187A	No description available	Powertrain
Proton	P187A	Gear blocked Brand	Powertrain
Saab	P187A	No description available	Powertrain

Legend: SAE is the generic J2012 description; Brand is text taken from that manufacturer’s data. Manufacturer rows keep the wording and language of the source data, and non-English text is tagged so screen readers pronounce it correctly.

5Extended variant codes 2

These 7-character codes are manufacturer-specific variants of P187A and may be reported by some scan tools.

Brand	Code	Description	System
Mercedes-Benz	P187A00	Error case for boost pressure crossing max limit for open-loop mode during Cold Start Brand	Powertrain
Sprinter	P187A00	Error case for boost pressure crossing max limit for open-loop mode during Cold Start Brand	Powertrain

6Related codes

Browse Pxxx codes or P187xx codes.