Solenoid Performance Check

To properly diagnose solenoid, check it in ON and OFF positions. When test procedure requires click test, check appropriate solenoid as follows.

• BANK/INJ  Install breakout box. Connect PCM to breakout box. Turn ignition on. Injectors should click when engine is cranked.
• CANP  Install breakout box, leaving PCM disconnected. Turn ignition
  1. Apply vacuum to vacuum nipple of canister purge solenoid. Using jumper wire, ground CANP test pin at breakout box. Vacuum should release.
• EGRC  Install breakout box, leaving PCM disconnected. Turn ignition
  1. Apply vacuum to hose from intake manifold, vacuum should hold. Using jumper wire, ground ERGC test pin of breakout box. Vacuum should release.
• EGRV  Install breakout box, leaving PCM disconnected. Turn ignition
  1. Apply vacuum from EGR valve. Vacuum should not hold. Using jumper wire, ground EGRV test pin of breakout box. Apply vacuum to EGR valve. Vacuum should hold.
• FPRC  Install breakout box, leaving PCM disconnected. Turn ignition
  1. Apply vacuum to FPRC solenoid. Vacuum should hold. Using jumper wire, ground FPRC test pin of breakout box. Vacuum should release.
• HSIA  Install breakout box, leaving PCM disconnected. Turn ignition
  1. Apply vacuum to HSIA solenoid. Vacuum should hold. Using jumper wire, ground HSIA test pin of breakout box. Vacuum should release.
• IAC  Install breakout box, leaving PCM disconnected. Turn ignition
  1. Using jumper wire, ground IAC test pin of breakout box intermittently. IAC solenoid should click when test pin is grounded.
• VRIS  Disconnect vacuum hoses at solenoid. Verify airflow between ports on solenoid. See VACUUM SPECIFICATION (VRIS SOLENOID) table. Install breakout box, leaving PCM disconnected. Turn ignition on. Using jumper wire, ground VRIS test pin of breakout box. Verify airflow between ports on solenoid.