|
|
(P0412) SECONDARY AIR INJECTION SWITCHOVER SOLENOID CIRCUIT (CONTINUED) 3. CHECK THE AIR PUMP SWITCHOVER SOLENOID Note: Check the Engine Control Fuse 2 in the Relay Control Mod- Disconnect the Air Pump Switchover Solenoid. Note: Check connectors — Clean/repair as necessary. With the DRB III T , actuate the AIRPUMP SWITCHOVER. Measure the voltage between the Fused Engine Control Relay Output Does the voltage toggle between B(+) and 0 volts? Yes >> Replace the Air Pump Switchover Solenoid. (Refer to 25 - EMISSIONS CONTROL/AIR INJECTION/SWITCHOVER Perform the POWERTRAIN VERIFICATION TEST - VER 2. No >> Go To 4 4. FUSED ENGINE CONTROL RELAY OUTPUT CIRCUIT OPEN With the ignition on. Measure the voltage of the Fused Engine Control Relay Output circuit Is the voltage above 10 volts? Yes >> Go To 5 No >> Repair the Fused Engine Control Relay Output circuit for an open. Perform the POWERTRAIN VERIFICATION TEST - VER ZH ENGINE - ELECTRICAL DIAGNOSTICS 9 - 433 |