P1799

A : P1799: CAN NETWORK MALFUNCTION, ANTI-LOCK BRAKE (ABS)/DYNAMIC STABILITY CONTROL (DSC) CONTROL MODULE

G354462t1 : CHECK THE ABS OR DSC MODULE FOR DAMAGE
1. Inspect the ABS/TCCM or DSC module.

- Does the ABS/TCCM or DSC module indicate any signs of damage?

-> Yes
INSTALL a new ABS/TCCM or DSC module. CLEAR the DTC, test the system for normal operation.

-> No

G354462t2 : CHECK CAN + FOR SHORT CIRCUIT TO GROUND
1. Turn the ignition switch to the OFF position.
2. 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

G354462t3 : CHECK CAN + FOR SHORT CIRCUIT TO BATTERY
1. 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

G354462t4 : 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

G354462t5 : CHECK CAN - FOR SHORT CIRCUIT TO BATTERY
1. Measure the resistance between the diagnostic connector, pins 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

G354462t6 : 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

G354462t7 : CHECK FOR OPEN CIRCUIT ON CAN + BETWEEN THE DIAGNOSTIC CONNECTOR AND THE ABS OR DSC MODULE
1. Disconnect the ABS/TCCM connector, JB45, or DSC module connector, JB185.
2. Measure the resistance between the diagnostic connector, pin 06 (Y) and JB45/JB185, pin 24 (Y).

- Is the resistance greater than 5 ohms?

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

-> No

G354462t8 : CHECK FOR OPEN CIRCUIT ON CAN - BETWEEN THE DIAGNOSTIC CONNECTOR AND THE ABS OR DSC MODULE
1. Measure the resistance between the diagnostic connector, pin 14 (G) and JB45/JB185, pin 40 (G).

- Is the resistance greater than 5 ohms?

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

-> No

G354462t9 : CHECK FOR CORRECT BUS TERMINATION
1. Reconnect the ABS/TCCM module connector, JB45, or DSC module connector, JB185.
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 ABS/TCCM module, or DSC module. CLEAR the DTC, test the system for normal operation.

-> No

G354462t10 : 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

G354462t11 : CHECK CONTINUITY OF THE CAN - CIRCUIT
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

G354462t12 : 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.

G354462t13 : CHECK FOR LOSS OF TERMINATION WITHIN THE IC
1. Measure the resistance between pins 17 and 18 of the instrument cluster.

- Is the resistance between 110 and 140 ohms?

-> Yes
Possible intermittent fault. Recheck DTCs. Repeat tests from A1.

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