What does P1172 mean on a Ford?

P1172. Rotor Control Fault (Secondary Circuit). Applies to 1990s Ford V8 models.

What causes P1172 on a Ford?

Secondary control circuit fault Wiring short to ground or power Failed secondary driver Connector damage Module fault

How do I fix P1172 on a Ford?

Isolate primary versus secondary circuit faults Test wiring for shorts Check driver outputs Repair wiring faults found Replace the module if drivers have failed

Code

P1172

Rotor Control Fault (Secondary Circuit)

Category: Powertrain - Ignition
Severity: Check Engine Light
Applies to: 1990s Ford V8 models
Related: P0351 Ignition Coil A Primary Control Circuit/Open on OBD Codes List

Findings, check these first

Secondary control circuit fault
Wiring short to ground or power
Failed secondary driver
Connector damage
Module fault

Standard procedure

Isolate primary versus secondary circuit faults
Test wiring for shorts
Check driver outputs
Repair wiring faults found
Replace the module if drivers have failed

Code lookup

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Press / to jump to the box. Ford-enhanced powertrain, body, chassis and network codes. Generic P0xxx codes live on OBD Codes List.

Sources and review

Review: qualified. Read the source limits below.

OBDII.pro: P1172 Ford definition
live reference page (obdii.pro)
Supports: Ford-family meaning for P1172: Rotor Control Fault
Fetched directly. obdii.pro is a publisher independent of the engine-codes family.

Last updated 2026-09-05.

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