P0675 Cylinder 5 Glow Plug Circuit

P0675 indicates a cylinder 5 glow plug circuit fault. The cylinder 5 glow plug circuit is not matching the expected electrical load.

Code status

Needs verification

Not yet verified against SAE J2012_202509 / J2012DA. Treat unverified rows as a lookup aid, not repair authority.

System: Computer
Scope: iso-sae-controlled-p0
Standard: SAE J2012 / ISO 15031-6
Source: legacy-import

Diagnostic boundary

A diagnostic trouble code reports that a monitored test failed. It does not prove one specific part is bad, and manufacturer logic can add vehicle-specific conditions.

Do not replace parts based only on the code number; verify cylinder 5 circuit load under command.

Useful checks before replacing parts

Measure cylinder 5 glow plug resistance, voltage during command, current draw, battery voltage, coolant temperature, and related glow plug codes.
Inspect cylinder 5 wiring, connector terminals, module output, harness heat damage, corrosion, poor pin fit, and shorts to power or ground.
Compare cylinder 5 measurements with other cylinders during the same commanded glow cycle to separate plug and wiring faults.

Related OBD-II codes

These nearby computer entries can help compare wording and fault area. They may share the same verification status as the source database.