No Crank. Cadillac Concours 1996

For 1990-2009 cars

Important: The battery must be in a charged state in order to avoid misdiagnosis. For battery charging or testing, refer to Battery. In order to avoid misdiagnosis, inspect for Diagnostic Trouble Codes (DTCs). Refer to Engine Controls.

#### Engine Does Not Crank, Starter Solenoid Does not Click

Step | Action | Value(s) | Yes | No
--- | --- | --- | --- | ---

1

1. Place the gear selector in Park.
2. Turn the ignition switch to the Run position.
3. Observe the security indicator. The security indicator should light for 5 seconds then go out. The message STARTING DISABLED DUE TO THEFT SYSTEM, REMOVE IGNITION KEY should not appear on the driver information center.

Does the indicator stay on or flash continuously and is the STARTING DISABLED... message displayed?

--

Go to Theft Deterrent System, Pass-Key®II Diagnostic System Check

Go to Step 2

2

1. Load the test battery. Refer to Battery.
2. Inspect the battery cables and the connections to the battery cables.

Are the battery and cables OK?

--

Go to Step 3

Go to Step 4

3

1. Remove the INJ fuses from the engine compartment fuse block in order to keep the engine from starting.
2. Turn the ignition switch to the Run position.
3. Measure the voltage from the starter solenoid terminal S (PPL wire) to ground.

Is the voltage 9.5 volts or greater?

--

Go to Step 6

Go to Step 5

4

1. Replace the battery if the battery fails the load test.
2. Repair the cable connections and replace the cables as needed.

Are the repairs and replacements complete?

--

System OK

--

5

1. Disconnect the C131 (PPL Wire).
2. Turn the ignition switch to the Run position.
3. Measure the voltage from the female side of the C131 to ground.

Is the voltage 9.5 volts or greater?

--

Go to Step 8

Go to Step 7

6

1. Inspect for poor connections at the starter solenoid terminal S.
2. Inspect for a dirty or poor ground between the starter and the engine block.
3. Repair or replace the starter. Refer to SD Starter Motor.

Is the repair or replacment complete?

--

System OK

--

7

1. Reconnect C131.
2. Disconnect the starter enable relay.
3. Attach a test lamp between the starter enable relay term D and B+.
4. While observing the test lamp, turn the ignition switch to the Run position.

Does the test lamp illuminate?

--

Go to Step 10

Go to Step 9

8

1. Inspect C131 terminal contact and circuit 6 from C131 to the starter solenoid for an open.
2. If OK, replace the starter solenoid.

Is the replacement complete?

--

System OK

--

9 | Inspect the terminal connections at C101. Are the connections OK? | -- | Go to Pass-Key®II Diagnosis. | --

10

1. Connect a test light between the starter enable relay, term F and ground.
2. While observing the test lamp, turn the ignition switch to the Run position.

Does the test lamp illuminate?

--

Go to Step 11

Go to Step 12

11 | Connect a test lamp between the starter enable relay term B and ground. Does the test lamp illuminate? | -- | Go to Step 13 | Go to Step 14

12

1. Remove the crank fuse from the engine compartment fuse block.
2. Connect a test light between the crank fuse terminal A4 and ground.
3. While observing the test lamp, turn the ignition to switch to the Run position.

Does the test lamp illuminate?

--

Go to Step 15

Go to Step 16

13

1. Connect a 30 amp fused jumper between the starter enable relay harness connector terminal B and terminal E
2. Try to crank the engine.

Does the engine crank?

--

Go to Step 17

Go to Step 16

14

1. Inspect circuit 142, including Batt1 Maxi® Fuse, for an open.
2. Inspect the starter enable relay harness connector for a poor connection.
3. If OK, replace the starter enable relay.

Is the replacement complete?

--

System OK

--

15

1. Inspect circuit 1737 for an open.
2. Inspect the Park/Neutral position switch.
3. Inspect circuit 5 from the park/neutral position switch to s106 for an open.

Does the system still exitst?

--

--

System OK

16 | Inspect circuit 5 for an open or power feed circuit 342 for an open including the ignition switch and Batt2 Maxi® Fuse. Does the system still exist? | -- | -- | System OK

17

1. Inspect for a poor connection to the starter enable relay.
2. If OK, replace the starter enable relay.

Is the replacement complete?

--

Sytem OK

--

18 | Repair the open or high resistance in circuit 6 Is the repair complete? | -- | System OK | --