Diagnostic Test
WARNING: This page is about a different car, the 2014 RAM 1500. However, it is still accessible from the selected car via links, so may be relevant.
- DTC IS ACTIVE
- Ignition on, engine not running.
- With the scan tool, erase DTCs in the Powertrain Control Module (PCM).
- Attempt to start the engine several times.
- Monitor the scan tool for at least two minutes.
- With the scan tool, select View DTCs.
Is the status Active for this DTC?
Yes
- Go To 2
No
- Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to INTERMITTENT DTC .
- STARTER RELAY
- Turn the ignition off.
- Replace the Starter Relay with a known good relay.
- Attempt to start the engine several times.
- Monitor the scan tool for at least two minutes.
- With the scan tool, select View DTCs.
Is the status Active for this DTC?
Yes
- Go To 3
No
- Replace the Starter Relay.
- Perform the PCM VERIFICATION TEST. Refer to PCM VERIFICATION TEST .
- CHECK THE (T752) STARTER RELAY CONTROL CIRCUIT FOR A SHORT TO GROUND
- Turn the ignition off.
- Remove the Starter Relay.
- Disconnect the PCM C1 harness connector.
- Measure the resistance between ground and the (T752) Starter Relay Control circuit at the Starter Relay connector (terminal 86).
Is the resistance above 10k Ohms?
Yes
- Go To 4
No
- Repair the (T752) Starter Relay Control circuit for a short to ground.
- Perform the PCM VERIFICATION TEST. Refer to PCM VERIFICATION TEST .
- CHECK THE (T752) STARTER RELAY CONTROL CIRCUIT FOR AN OPEN/HIGH RESISTANCE
- Measure the resistance of the (T752) Starter Relay Control circuit between the Starter Relay connector (terminal 86) and the PCM C1 harness connector.
Is the resistance below 5.0 Ohms?
Yes
- Replace and program the Powertrain Control Module in accordance the service information. Refer to MODULE, POWERTRAIN CONTROL, REMOVAL .
- Perform the PCM VERIFICATION TEST. Refer to PCM VERIFICATION TEST .
No
- Repair the (T752) Starter Relay Control circuit for an open or high resistance.
- Perform the PCM VERIFICATION TEST. Refer to PCM VERIFICATION TEST .
- Measure the resistance of the (T752) Starter Relay Control circuit between the Starter Relay connector (terminal 86) and the PCM C1 harness connector.