PINPOINT TEST G258127p24

Pinpoint Tests

PINPOINT TEST G258127p24 : DTC P1229; THROTTLE MOTOR CONTROL CIRCUIT MALFUNCTION

G258127t93 : CHECK THE THROTTLE MOTOR - TO ECM CIRCUIT FOR HIGH RESISTANCE
1. Disconnect the battery negative terminal.
2. Disconnect the throttle motor electrical connector, PI18.
3. Disconnect the ECM electrical connector, PI01.
4. Measure the resistance between PI18, pin 01 (GW) and PI01, pin 80 (GW).

- Is the resistance greater than 5 Ohms?

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

->NO
GO to Pinpoint Test G258127t94.

G258127t94 : CHECK THE THROTTLE MOTOR + TO ECM CIRCUIT FOR HIGH RESISTANCE
1. Measure the resistance between PI18, pin 02 (RW) and PI01, pin 106 (RW).

- Is the resistance greater than 5 Ohms?

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

->NO
INSTALL a new throttle body. CLEAR the DTC. TEST the system for normal operation.