PINPOINT TEST G92429p9 : DTC P0131, P0132, P0133, P1646; RIGHTHAND BANK HO2S

PINPOINT TEST G92429p9 : DTC P0131, P0132, P0133, P1646. RIGHT-HAND BANK HO2S

G92429t47 : CHECK THE CONSTANT CIRCUIT OF THE RIGHT-HAND BANK HO2S FOR OPEN CIRCUIT
1. Disconnect the HO2S electrical connector EN37.
2. Disconnect the ECM electrical connector, EN16.
3. Measure the resistance between EN16, pin 84 (P) and EN37, pin 4 (P).

- Is the resistance less than 5 ohms?

-> YES
GO to Pinpoint Test G92429t48.

-> NO
REPAIR the circuit. CLEAR the DTCs. TEST the system for normal operation.

G92429t48 : CHECK THE CONSTANT CIRCUIT OF THE RIGHT-HAND BANK HO2S FOR SHORT TO GROUND
1. Measure the resistance between EN16, pin 84 (P) and GROUND.

- Is the resistance less than 10,000 ohms?

-> YES
REPAIR the short circuit. CLEAR the DTCs. TEST the system for normal operation.

-> NO
GO to Pinpoint Test G92429t51.

G92429t51 : CHECK THE CONSTANT CIRCUIT OF THE RIGHT-HAND BANK HO2S FOR SHORT TO BATTERY
1. Connect the ECM electrical connector EN16.
2. Turn the ignition switch to the ON position.
3. Measure the voltage between EN37, pin 4 (P) and GROUND.

- Is the voltage greater than 5 volts?

-> YES
REPAIR the short circuit. CLEAR the DTCs. TEST the system for normal operation.

-> NO
GO to Pinpoint Test G92429t52.

G92429t52 : CHECK THE VARIABLE CIRCUIT OF THE RIGHT-HAND BANK HO2S FOR OPEN CIRCUIT
1. Disconnect the ECM electrical connector, EN16.
2. Measure the resistance between EN16, pin 83 (Y) and EN37, pin 3 (Y).

- Is the resistance less than 5 ohms?

-> YES
GO to Pinpoint Test G92429t49.

-> NO
REPAIR the circuit. CLEAR the DTCs. TEST the system for normal operation.

G92429t49 : CHECK THE VARIABLE CIRCUIT OF THE RIGHT-HAND BANK HO2S FOR SHORT TO GROUND
1. Measure the resistance between EN16, pin 83 (Y) and GROUND.

- Is the resistance less than 10,000 ohms?

-> YES
REPAIR the short circuit. CLEAR the DTCs. TEST the system for normal operation.

-> NO
GO to Pinpoint Test G92429t159.

G92429t159 : CHECK THE VARIABLE CIRCUIT OF THE RIGHT-HAND BANK HO2S FOR SHORT TO BATTERY
1. Connect the ECM electrical connector EN16.
2. Turn the ignition switch to the ON position.
3. Measure the voltage between EN37, pin 3 (Y) and GROUND.

- Is the voltage greater than 5 volts?

-> YES
REPAIR the short circuit. CLEAR the DTCs. TEST the system for normal operation.

-> NO
INSTALL a new HO2S. CLEAR the DTCs. TEST the system for normal operation. If the DTC is repeated, INSTALL a new ECM. Before replacing an ECM, contact dealer technical support.