P1236

D : FUEL PUMP CONTROL MODULE. P1234

G92396t22 : CHECK THE POWER SUPPLY TO THE FUEL PUMP MODULE
1. Disconnect the fuel pump module electrical connector CA105.
2. Turn the ignition switch to the ON position.
3. Measure the voltage at CA105 pin 9 (NG)

- Is the voltage greater than 10 volts?

-> Yes

-> No
REPAIR the circuit between electrical connector CA105 pin 9 (NG) and the ignition switch. CLEAR the DTC. TEST the system for normal operation.This circuit includes the central junction fuse box, ignition relay, and the inertia switch.

G92396t23 : CHECK THE GROUND CIRCUIT TO THE FUEL PUMP MODULE
1. Measure the resistance between CA105 pin 2 (B) and ground.

- Is the resistance less than 5 ohms?

-> Yes

-> No
REPAIR the circuit between electrical connector CA105 pin 2 (B) and GROUND. CLEAR the DTC. TEST the system for normal operation.

G92396t24 : CHECK THE SIGNAL GROUND CIRCUIT TO THE FUEL PUMP MODULE
1. Turn the ignition switch to the CRANK position.
2. Measure the resistance between electrical connector CA105 pin 4 (BG) and ground.

- Is the resistance less than 5 ohms?

-> Yes

-> No
REPAIR the circuit between electrical connector CA105 pin 4 (BG) and GROUND. CLEAR the DTC. TEST the system for normal operation.This circuit includes the ECM

G92396t25 : CHECK THE POWER SUPPLY CIRCUIT TO THE FUEL PUMP
1. Reconnect the fuel pump module electrical connector CA105.
2. Disconnect the fuel pump electrical connector FT2.
3. Turn the ignition switch to the ON position.
4. Measure the voltage between electrical connector FT2 pin 2 (R) and GROUND.

- Is the voltage greater than 10 volts?

-> Yes

-> No
INSTALL a new fuel pump module. CLEAR the DTC. TEST the system for normal operation.

G92396t27 : CHECK THE SIGNAL GROUND CIRCUIT FOR CONTINUITY
1. Disconnect the fuel pump module electrical connector CA105.
2. Measure the resistance between electrical connector CA105 pin 3 (Y) and electrical connector FT2 pin 4 (Y)

- Is the resistance less than 5 ohms?

-> Yes
INSTALL a new fuel pump module. If the DTC is repeated, INSTALL a new fuel pump. CLEAR the DTC. TEST the system for normal operation.

-> No
REPAIR the circuit between electrical connector CA105 pin 3 (Y) and electrical connector FT2 pin 4 (Y). CLEAR the DTC. TEST the system for normal operation.