P1699

C : P1699: CAN NETWORK MALFUNCTION, ELECTRONIC AUTOMATIC TEMPERATURE CONTROL (EATC) MODULE

G354462t14 : CHECK THE EATC MODULE FOR DAMAGE
1. Inspect the EATC module for damage.

- Does the EATC module indicate any signs of damage?

-> Yes
INSTALL a new EATC module. CLEAR the DTC, test the system for normal operation.

-> No

G354462t15 : CHECK CAN + FOR SHORT CIRCUIT TO GROUND
1. Measure the resistance between the diagnostic connector, pin 06 (Y) and GROUND.

- Is the resistance less than 10,000 ohms?

-> Yes
REPAIR the short circuit. CLEAR the DTC, test the system for normal operation.

-> No

G354462t16 : CHECK CAN + FOR SHORT CIRCUIT TO BATTERY
1. Turn the ignition switch to the OFF position.
2. Measure the resistance between the diagnostic connector, pin 06 (Y) and pin 16 (OY).

- Is the resistance less than 10,000 ohms?

-> Yes
REPAIR the short circuit. CLEAR the DTC, test the system for normal operation.

-> No

G354462t17 : CHECK CAN - FOR SHORT CIRCUIT TO GROUND
1. Measure the resistance between the diagnostic connector, pin 14 (G) and GROUND.

- Is the resistance less than 10,000 ohms?

-> Yes
REPAIR the short circuit. CLEAR the DTC, test the system for normal operation.

-> No

G354462t18 : CHECK CAN - FOR SHORT CIRCUIT TO BATTERY
1. Measure the resistance between the diagnostic connector, pin 14 (G) and pin 16 (OY).

- Is the resistance less than 10,000 ohms?

-> Yes
REPAIR the short circuit. CLEAR the DTC, test the system for normal operation.

-> No

G354462t19 : CHECK FOR SHORT CIRCUIT BETWEEN CAN + AND CAN -
1. Disconnect the battery negative terminal.
2. Measure the resistance between the diagnostic connector, pins 06 (Y) and 14 (G).

- Is the resistance less than 10,000 ohms?

-> Yes
REPAIR the short circuit. CLEAR the DTC, test the system for normal operation.

-> No

G354462t20 : CHECK FOR OPEN CIRCUIT ON CAN + BETWEEN THE DIAGNOSTIC CONNECTOR AND THE EATC MODULE
1. Disconnect the EATC module connector, IP101.
2. Measure the resistance between the diagnostic connector, pin 06 (Y) and IP101, pin 22 (Y).

- Is the resistance greater than 5 ohms?

-> Yes
REPAIR the high resistance circuit. CLEAR the DTC, test the system for normal operation.

-> No

G354462t21 : CHECK FOR OPEN CIRCUIT ON CAN - BETWEEN THE DIAGNOSTIC CONNECTOR AND THE EATC MODULE
1. Measure the resistance between the diagnostic connector, pin 14 (G) and IP101, pin 23 (G).

- Is the resistance greater than 5 ohms?

-> Yes
REPAIR the high resistance circuit. CLEAR the DTC, test the system for normal operation.

-> No

G354462t22 : CHECK FOR CORRECT BUS TERMINATION
1. Reconnect the EATC module connector, IP101.
2. Measure the resistance between the diagnostic connector, pins 06 (Y) and 14 (G).

- Is the resistance between 50 and 70 ohms?

-> Yes
INSTALL a new EATC module. CLEAR the DTC, test the system for normal operation.

-> No

G354462t23 : CHECK CONTINUITY OF THE CAN + CIRCUIT BETWEEN THE ECM AND THE IC
1. To test:

- Is the resistance greater than 5 ohms?

-> Yes
REPAIR the high resistance circuit. CLEAR the DTC, test the system for normal operation.

-> No

G354462t24 : CHECK CONTINUITY OF THE CAN - CIRCUIT BETWEEN THE ECM AND THE IC
1. Measure the resistance between:

- Is the resistance greater than 5 ohms?

-> Yes
REPAIR the high resistance circuit. CLEAR the DTC, test the system for normal operation.

-> No

G354462t25 : CHECK FOR LOSS OF TERMINATION WITHIN THE ECM
1. Measure the resistance between:

- Is the resistance between 110 and 140 ohms?

-> Yes

-> No
Please check part is not on any form of prior authorization before replacement.

G354462t26 : CHECK FOR LOSS OF TERMINATION WITHIN THE IC
1. Measure the resistance between pins 17 and 18 of the IC.

- Is the resistance between 110 and 140 ohms?

-> Yes
POSSIBLE intermittent fault. Recheck DTCs.

-> No
INSTALL a new instrument cluster. CLEAR the DTC, test the system for normal operation.