Scan Tool Data List (Glow Plug Control Module)
WARNING: This page is about a different variant/trim than selected.
The GPCM Scan Tool Data List contains all glow plug control module related parameters that are available on the scan tool. The list is arranged in alphabetical order.
Use the GPCM Scan Tool Data List only after the following is determined:
- The Diagnostic System Check - Vehicle is completed.
- No diagnostic trouble codes (DTCs) are present.
- The on-board diagnostics are functioning properly.
Scan tool values from a properly running engine may be used for comparison with the engine you are diagnosing. The GPCM Scan Tool Data List represents values that would be seen on a normal running engine.
IMPORTANT:
A scan tool that displays faulty data should not be used. The scan tool problem should be reported to the manufacturer. Use of a faulty scan tool can result in misdiagnosis and unnecessary parts replacement.
Scan Tool Data List
| Scan Tool Parameter | Units Displayed | Typical Data Value |
|---|---|---|
| Operating Conditions: Engine Idling/Lower Radiator Hose Hot/Closed Throttle/Park or Neutral/Accessories Off | ||
| Glow Plug | Volts | TBD |
| Glow Plug 1-8 | ohms | 0.5-0.9 |
| Glow Plug Driver Open | OK/Fault | OK |
| Glow Plug Driver Shorted | OK/Fault | OK |
| Glow Plug Overtemp | OK/Fault | OK |
| Glow Plug Overvoltage | OK/Fault | OK |
| Glow Plug Undervoltage | OK/Fault | OK |
| IA Heater Driver Current | OK/Fault | OK |
| IA Heater Driver Grounded | OK/Fault | OK |
| IA Heater Driver Open | OK/Fault | OK |
| IA Heater Driver Shorted | OK/Fault | OK |
| IA Heater Overtemp | OK/Fault | OK |
| IA Heater Overvoltage | OK/Fault | OK |
| IA Heater Undervoltage | OK/Fault | OK |
| Ignition 1 Signal | volts | Battery Voltage |
| Intake Air Heater | Volts | 11 |
| Intake Air Heater | % | 0 |
| Intake Air Heater Command | % | 0 |