P2602 — OBD2 Diagnostic Trouble Code (Honda)

This general powertrain/engine diagnostic trouble code pertains to all OBDII equipped engines with electric coolant pumps, however it appears more frequently in Ford, Honda, Nissan, and Toyota hybrid vehicles.
The Coolant Pump ‘A’ Control Circuit signal is monitored by the Powertrain Control Module (PCM). When the Coolant Pump ‘A’ Control Circuit signal is out of factory specifications, the PCM sets the OBDII code.
The Coolant Pump A (CP-A) is commonly located in front of the engine, on top of the engine, inside the wheel wells, or against the bulkhead. The Powertrain Control Module sends an electrical signal to the CP-A, which controls it (PCM).

The following are some of the symptoms of a P2602 code:

1. Malfunction Indicator Light On
2. Overheating
3. A/C system not functioning properly