Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
Schematic Reference: Body Control System Schematics in Body Control System, Engine Controls Schematics in Engine Controls - 3.4L or Engine Controls Schematics in Engine Controls - 3.8L (L36 and L67) Connector End View Reference: Body Control System Connector End Views in Body Control System, Powertrain Control Module Connector End Views in Engine Controls - 3.4L or Powertrain Control Module Connector End Views in Engine Controls - 3.8L (L36 and L67) | ||||
1 | Did you perform the Diagnostic System Check for Starting and Charging? | -- | Go to Step 2 | |
2 | Start the engine. Does the battery charge indicator remain illuminated after the 5 second bulb check? | -- | Go to Step 3 | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems |
3 | Measure the voltage across the battery terminals. Is the battery voltage greater the specified value? | 11 V | Go to Step 4 | Go to Charging System Test |
4 |
Does the scan tool indicate the battery voltage equals the specified value? | B+ | Go to Step 5 | Go to Step 6 |
5 | With a scan tool, observe the Ignition 1 parameter in the powertrain control module (PCM) data list. Does the scan tool indicate the battery voltage equals the specified value? | B+ | Go to Step 11 | Go to Step 7 |
6 | Measure the voltage between the BCM battery positive voltage circuit supplied by the 10A Cluster/BCM fuse and ground. Does the voltage equal the specified value? | B+ | Go to Step 10 | Go to Step 8 |
7 | Measure the voltage between the PCM voltage supply circuit and ground. Does the voltage equal the specified value? | B+ | Go to Step 12 | Go to Step 9 |
8 | Test battery positive voltage circuit supplied by the 10A Cluster/BCM fuse to the BCM for a high resistance or an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | -- | System OK | Go to Step 10 |
9 | Test the battery positive voltage circuit of the PCM for a high resistance or an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | -- | System OK | Go to Step 12 |
10 | Replace the BCM. Refer to Body Control Module Replacement n Body Control System. Did you complete the replacement? | -- | System OK | -- |
11 | Replace the instrument panel cluster (IPC). Refer to Instrument Cluster Replacement in Instrument Panel, Gages and Console. Did you complete the replacement? | -- | System OK | -- |
12 | Replace the PCM. Refer to Powertrain Control Module Replacement in Engine Controls - 3.4L or Powertrain Control Module Replacement in Engine Controls - 3.8L (L36 and L67). Did you complete the replacement? | -- | System OK | -- |
