P1652

Read the instructions below then start the fault diagnostic procedure.

Symptom: CHECK ENGINE lamp on.

P1652

Fault symptoms

•	CHECK ENGINE lamp on.

Conditions

The following conditions apply for this DTC:

•

The main relay is closed too late. The main relay circuit is checked during afterrun. When the control module stops grounding pin K28 to the main relay, a clock is started. If it takes longer than 3 seconds for the power to disappear from pin 5 after grounding stops on pin K28 three times in a row, a DTC will be generated the next time the ignition is on.

Diagnostic help

PSG 16 controls whether the main relay is closed within the desired time. Check that the main relay works.

The DTC can also be caused by a short-circuit to ground on the relay coil's ground lead or a short-circuit to B+ in the main relay circuit.