Step | Action | Value(s) | Yes | No | ||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
1 | Did you perform the Diagnostic System Check - Vehicle? | -- | Go to Step 2 | |||||||||
2 |
Important: The battery must be above a 70 percent state of charge. Did you perform the battery Inspection/Test? | -- | Go to Step 3 | Go to Battery Inspection/Test | ||||||||
3 |
Does the voltage change with each command? | -- | Go to Step 4 | Go to Step 8 | ||||||||
4 |
Is the voltage within the specified value? | 12-15.5V | Go to Step 5 | Go to Step 6 | ||||||||
5 |
Caution: Make sure that the load is completely turned off before connecting or disconnecting a carbon pile load tester to the battery. Otherwise, sparking could ignite battery gasses which are extremely flammable and may explode violently. Important: When measuring generator output current, be sure the inductive probe encircles the generator output wire. Is the generator output greater than or equal to the load test value as specified in? | -- | System OK | Go to Step 7 | ||||||||
6 | Is the voltage measured greater than 15.5 volts? | -- | Go to Step 12 | Go to Step 7 | ||||||||
7 |
Is the voltage measured equal to the specified value? | Battery Voltage | Go to Step 14 | Go to Step 9 | ||||||||
8 |
Does the voltage measure greater than the first value ON and near the second value OFF? | 4.7V-0V | Go to Step 14 | Go to Step 11 | ||||||||
9 |
Is the voltage measured less than the specified value? | 0.5V | Go to Step 10 | Go to Step 15 | ||||||||
10 |
Is the voltage measured less than the specified value? | 0.5V | Go to Step 14 | Go to Step 16 | ||||||||
11 | Test the generator turn on signal circuit for a short, or open. Refer to Circuit Testing and Wiring Repairs . Did you find and correct the condition? | -- | Go to Step 19 | Go to Step 13 | ||||||||
12 | Test the generator battery voltage sense circuit, if equipped, for an open or high resistance. Refer to Circuit Testing and Wiring Repairs . Did you find and correct the condition? | -- | Go to Step 19 | Go to Step 14 | ||||||||
13 | Inspect for poor connections at the harness connector of the engine control module (ECM) or powertrain control module (PCM). Refer to Testing for Intermittent Conditions and Poor Connections . Did you find and correct the condition? | -- | Go to Step 19 | Go to Step 17 | ||||||||
14 | Inspect for poor connections at the generator. Refer to Testing for Intermittent Conditions and Poor Connections . Did you find and correct the condition? | -- | Go to Step 19 | Go to Step 18 | ||||||||
15 | Repair the high resistance or open in the ground circuit of the generator. Refer to Wiring Repairs . Did you complete the repair? | -- | Go to Step 19 | -- | ||||||||
16 | Repair the high resistance or open in the generator output circuit. Refer to Wiring Repairs . Did you complete the repair? | -- | Go to Step 19 | -- | ||||||||
17 | Replace the PCM or ECM. Refer to Control Module References for replacement, setup, and programming. Did you complete the replacement? | -- | Go to Step 19 | -- | ||||||||
18 | Replace the generator. Refer to Generator Replacement . Did you complete the replacement? | -- | Go to Step 19 | -- | ||||||||
19 | Operate the vehicle in order to verify the repair. Did you correct the condition? | -- | System OK | Go to Step 2 |