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Eric
Eric, Automotive Repair Shop Manager
Category: Cadillac
Satisfied Customers: 32537
Experience:  20+ yrs. experience as repair shop manager and technician.
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2013 caddy ats code p0617 after we put new valve cover

Customer Question

2013 caddy ats code p0617 after we put new valve cover gaskets
Submitted: 1 year ago.
Category: Cadillac
Expert:  Eric replied 1 year ago.

HI,

Ok, this could be due to the starter, starter relay or wiring harness. Below is the testing you need to do. I would suspect a pinched or cut wire from the repair, but it is possible for the relay or starter to have failed.

Circuit/System Testing

1. Ignition OFF and all vehicle systems OFF, disconnect the KR27 Starter Relay. It may take up to 2 min for all vehicle systems to power down.

2. Test for less than 10 ohms between the ground circuit terminal 86 and ground.

If 10 ohms or greater

1. Ignition OFF.

2. Test for less than 2 ohms in the ground circuit end to end.

◊If 2 ohms or greater, repair the open/high resistance in the circuit.

◊If less than 2 ohms, repair the open/high resistance in the ground connection.

If less than 10 ohms

3. Ignition ON.

4. Verify a test lamp illuminates between the B+ circuit terminal 30 and ground.

If the test lamp does not illuminate and the circuit fuse is OK

1. Ignition OFF.

2. Test for less than 2 ohms in the B+ circuit end to end.

◊If 2 ohms or greater, repair the open/high resistance in the circuit.

◊If less than 2 ohms, verify the fuse is OK and there is voltage at the fuse.

If the test lamp does not illuminate and the circuit fuse is open

1. Ignition OFF.

2. Test for infinite resistance between the B+ circuit and ground.

◊If less than infinite resistance, repair the short to ground on the circuit.

◊If infinite resistance,

3. Test for infinite resistance between the control circuit terminal 87 and ground.

◊If less than infinite resistance, repair the short to ground on the circuit.

◊If infinite resistance, replace the KR27 Starter Relay.

If the test lamp illuminates

5. Connect a test lamp between the control circuit terminal 85 and the ground circuit terminal 86.

6. Verify the test lamp turns ON and OFF when commanding the Starter Relay ON and OFF with a scan tool.

If the test lamp is always OFF

1. Ignition OFF, disconnect the harness connector at the K20 Engine Control Module.

2. Test for infinite resistance between the control circuit and ground.

◊If less than infinite resistance, repair the short to ground on the circuit.

◊If infinite resistance

3. Test for less than 2 ohms in the control circuit end to end.

◊If 2 ohms or greater, repair the open/high resistance in the circuit.

◊If less than 2 ohms, replace the K20 Engine Control Module.

If the test lamp is always ON

1. Ignition OFF, disconnect the harness connector at the K20 Engine Control Module, ignition ON.

2. Test for less than 1 V between the control circuit and ground.

◊If 1 V or greater, repair the short to voltage on the circuit.

◊If less than 1 V, replace the K20 Engine Control Module.

If the test lamp turns ON and OFF

7. Ignition ON, connect a 30 A fused jumper wire between the B+ circuit terminal 30 and the control circuit terminal 87.

8. Verify the M64 Starter Motor is activated.

If the M64 Starter Motor does not activate

1. Ignition OFF, disconnect the harness connector at the M64 Starter Motor.

2. Test for infinite resistance between ground and terminal X1 A or X1 1.

◊If less than infinite resistance, repair the short to ground on the circuit.

◊If infinite resistance

3. Test for less than 2 ohms in the control circuit end to end.

◊If 2 ohms or greater, repair the open/high resistance in the circuit.

◊If less than 2 ohms, replace the M64 Starter Motor.

If the M64 Starter Motor activates

9. Test or replace the KR27 Starter Relay.

Component Testing

Relay Test

1. Ignition OFF, disconnect the KR27 Starter Relay.

2. Test for 60-180 ohms between terminals 85 and 86.

If less than 60 or greater than 180 ohms
Replace the relay.

If between 60-180 ohms

3. Test for infinite resistance between the terminals listed below:

* 30 and 86

* 30 and 87

* 30 and 85

* 85 and 87

If less than infinite resistance
Replace the relay.

If infinite resistance

4. Install a 20 A fused jumper wire between relay terminal 85 and 12 V. Install a jumper wire between relay terminal 86 and ground.

5. Test for less than 2 ohms between terminals 30 and 87.

If 2 ohms or greater
Replace the relay.

If less than 2 ohms

6. All OK

Customer: replied 1 year ago.
a remote start was istalled recently by dealer
now it turns over for 1 second and stops
Expert:  Eric replied 1 year ago.

Hi,

Do you know how it is wired exactly

Customer: replied 1 year ago.
dealer did it ,not sure
Customer: replied 1 year ago.
car went dead on us and we jumped it
Expert:  Eric replied 1 year ago.

Hi,

I will have to opt out as I am not familiar with dealer installed remote starts. If another expert can help, they will post here