Operation CHARM: Car repair manuals for everyone.
Home >> Acura >> 2008 >> TSX L4-2.4L >> Repair and Diagnosis >> Heating and Air Conditioning >> Condenser Fan >> Testing and Inspection >> Non-Trouble Code Procedures >> Radiator Fan Switch Circuit Troubleshooting (Open)
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Radiator Fan Switch Circuit Troubleshooting (Open)

Radiator Fan Switch Circuit Troubleshooting (Open)

'04-05 models

NOTE: Before beginning this troubleshooting procedure, refer to the symptom troubleshooting index. Symptom Related Diagnostic Procedures

1. Disconnect the radiator fan switch 2P connector.
2. Turn the ignition switch ON (II).
3. Measure voltage between radiator fan switch 2P connector terminal No. 2 and body ground.





Is there battery voltage?

YES - Go to step 4.

NO - Repair open in the wire between radiator fan switch 2P connector terminal No. 2 and under-hood fuse/relay box.

4. Turn the ignition switch OFF, and check for continuity between radiator fan switch 2P connector terminal No. 1 and body ground.





Is there continuity?

YES - Replace the radiator fan switch.

NO - Repair open in the wire between radiator fan switch 2P connector terminal No. 1 and body ground. If the wire is OK, check for a poor ground at G301.
pro multis · About Operation CHARM