PINPOINT TEST G258127p39

Pinpoint Tests

PINPOINT TEST G258127p39 : DTC P1474; CHECK INTERCOOLER COOLANT PUMP FUNCTION

G258127t173 : CHECK POWER SUPPLY TO INTERCOOLER COOLANT PUMP
1. Disconnect the intercooler coolant pump electrical connector, CP02.
2. Turn the ignition switch to the ON position.
3. Make sure the EMS relay is energized.
4. Measure the voltage between CP02, pin 02 (NG) and GROUND.

- Is the voltage less than 10 volts?

->YES
REPAIR the circuit between CP02, pin 02 and battery. This circuit includes the front power distribution box (fuse 31), the ignition relay, and the high power protection module. CLEAR the DTC. TEST the system for normal operation.

->NO
GO to Pinpoint Test G258127t174.

G258127t174 : CHECK THE INTERCOOLER COOLANT PUMP GROUND
1. Measure the resistance between CP02, pin 01 (B) and GROUND.

- Is the resistance greater than 5 Ohms?

->YES
REPAIR the high resistance circuit. TEST the system for normal operation.

->NO
INSTALL a new intercooler coolant pump. CLEAR the DTC. TEST the system for normal operation.