P1621 OBD Trouble Code
7 results found
| Type | Powertrain - Manufacturer Controlled DTC - Manufacturer Controlled |
|---|---|
| Description | Instrument panel, ECT signal - short to ground |
| Cause | Wiring short to ground, instrument panel |
| Type | Powertrain - Manufacturer Controlled DTC - Manufacturer Controlled |
|---|---|
| Description | Control Module Long Term Memory Performance Conditions |
| Cause | Key on or engine running, then the PCM detected a fault in the non-volatile memory had occurred |
| Type | Powertrain - Manufacturer Controlled DTC - Manufacturer Controlled |
|---|---|
| Description | Engine control module (ECM) - internal memory performance |
| Cause | ECM |
| Type | Powertrain - Manufacturer Controlled DTC - Manufacturer Controlled |
|---|---|
| Description | Engine control module (ECM) |
| Cause | ECM |
| Type | Powertrain - Manufacturer Controlled DTC - Manufacturer Controlled |
|---|---|
| Description | Engine control module (ECM) - incorrect immobilizer code after cranking |
| Cause | Immobilizer word code not programmed |
| Type | Powertrain - Manufacturer Controlled DTC - Manufacturer Controlled |
|---|---|
| Description | AC compressor clutch relay - high output |
| Cause | Wiring short to positive, AC compressor clutch relay |
| Type | Powertrain - Manufacturer Controlled DTC - Manufacturer Controlled |
|---|---|
| Description | Instrument panel, ECT signal - short to ground |
| Cause | Wiring short to ground, instrument panel |
Try also: https://www.obd-codes.com/p1621
