CAR OBD CODES

Glowplug for Cylinder 3 (Q12): Open Circuit

• No Pre-Glow Period
• Poor Cold Starting

• Glow Plug Wiring faulty
• Glow Plug faulty

• Check Glow Plug Wiring
• Check Glow Plug

Diagnostic Instructions

• Perform the Diagnostic System Check – Vehicle prior to using this diagnostic procedure.
• Review Strategy based Diagnosis for an overview of the diagnostic approach.
• Diagnostic Procedure Instructions provides an overview of each diagnostic category.

Conditions for Running the OBD Code
•      The ignition is ON.
•      The OBD Code runs continuously once the above condition is met.
Conditions for Setting the OBD Code

The ECM detects that the tire size is not programmed in the EEPROM for more than 1 s.
Action Taken When the OBD Code Sets

DTC P161C is a Type A OBD Code.
Conditions for Clearing the OBD Code

DTC P161C is a Type A OBD Code.
Reference Information
Schematic Reference
Engine Controls Schematics
Connector End View Reference
Component Connector End Views

Electrical Information Reference
• Circuit Testing
• Connector Repairs
• Testing for Intermittent Conditions and Poor Connections
• Wiring Repairs

OBD Code Type Reference
Powertrain Diagnostic Trouble Code (DTC) Type Definitions

Scan Tool Reference
Control Module References for scan tool information
Circuit/System Testing

Program the ECM. If DTC P161C sets after programming, perform the following steps:
1.     Ensure that all tool connections are secure.
2.     Ensure the programming equipment is operating correctly.
3.     Ensure the correct software and the correct calibration is used.
4.     Attempt to program the K20 Engine Control Module.
⇒     If DTC P161C sets, replace the K20 Engine Control Module.
Repair Instructions
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
Control Module References for ECM replacement, setup, and programming