LEMON Manuals: Even more car manuals for everyone
Home >> Chevrolet >> 2006 >> Cobalt LTZ >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Instrument Panel System Displays, Gauges And Console >> Diagnostic Information and Procedures >> DTC P0462 (2.0L and 2.2L) >> Test Description

Test Description

The number below refers to the step number on the diagnostic table.

  1. 3:  This step tests for the proper operation of the circuit in the high voltage range.
DTC P0462 (2.0L and 2.2L)

Step Action Values Yes No
Schematic Reference: Instrument Cluster Schematics 
Connector End View Reference: Powertrain Control Module (PCM) Connector End Views for the 2.0L engine, Engine Control Module (ECM) Connector End Views for the 2.2L engine, or Engine Control Module (ECM) Connector End Views for the 2.4L engine
1 Did you perform the Diagnostic System Check - Vehicle? - Go to Step 2  Go to Diagnostic System Check - Vehicle
2
  1. Install a scan tool.
  2. Turn ON the ignition, with the engine OFF.
  3. With a scan tool, observe the Fuel Tank Level Remaining parameter in the engine control module (ECM)/powertrain control module (PCM) EVAP Data list.
Does the scan tool indicate that the Fuel Tank Level Remaining parameter is less than the specified value?		 3.5% Go to Step 3  Go to Diagnostic Aids
3 
  1. Turn the ignition OFF.
  2. Disconnect C305.
  3. Turn ON the ignition, with the engine OFF.
  4. With a scan tool, observe the Fuel Tank Level Remaining parameter.
Does the scan tool indicate that the Fuel Tank Level Remaining parameter is greater than the specified value?		 98% Go to Step 5  Go to Step 4 
4 Test the signal circuit of the fuel level sender for a short to ground. Refer to Circuit Testing and Wiring Repairs .
Did you find and correct the condition?		 - Go to Step 10  Go to Step 7 
5 Test the signal circuit of the fuel level sender for a short to ground between C305 and the fuel level sender. Refer to Circuit Testing and Wiring Repairs .
Did you find and correct the condition?		 - Go to Step 10  Go to Step 6 
6 Inspect for poor connections at the harness connector of the fuel level sender. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs .
Did you find and correct the condition?		 - Go to Step 10  Go to Step 8 
7 Inspect for poor connections at the harness connector of the ECM/PCM. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs .
Did you find and correct the condition?		 - Go to Step 10  Go to Step 9 
8 Replace the fuel level sender. Refer to the following:
Did you complete the replacement?		 - Go to Step 10  -
9 Replace the ECM/PCM. Refer to Control Module References for replacement, setup, and programming.
Did you complete the replacement?		 - Go to Step 10  -
10
  1. Use the scan tool in order to clear the DTCs.
  2. Operate the vehicle within the Conditions for Running the DTC, as specified in the supporting text.
Does the DTC reset?		 - Go to Step 2  System OK
scientia non olet · About LEMON Manuals