P1642 OBD Trouble Code
1 result found
| Type | Powertrain - Manufacturer Controlled DTC - Manufacturer Controlled |
|---|---|
| Description | Fan Control Relay 2 and 3 Control Circuit |
| Cause | No A/C or ECT codes set, engine speed over 600 rpm, then the PCM detected the commanded state of the FC Relay 2/3 driver and Actual state did not match, all conditions met for 5 seconds |
Try also: https://www.obd-codes.com/p1642
