Pinpoint Test G: DTC P1696; CHECK THE ASCCM SUPPLIES AND GROUNDS

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2006 Jaguar XKR, 2006 Jaguar XK8, 2005 Jaguar XKR, 2005 Jaguar XK8, and 2004 Jaguar XKR. However, it is still accessible from the selected car via links, so may be relevant.

CHECK THE PERMANENT POWER SUPPLY TO THE ASCCM
Disconnect the ASCCM electrical connector, LF61.

Measure the voltage between LF61, pin 01 (NW) and GROUND.

Is the voltage less than 10 volts?

YES: REPAIR the circuit between the ASCCM and battery. This circuit includes the engine compartment fuse box, (fuse 22) and the high power protection module. For additional information, refer to the wiring diagrams. Test the system for normal operation.

NO: Go to step 2.
CHECK THE IGNITION SWITCHED POWER SUPPLY TO THE ASCCM
Turn the ignition switch to the ON position.

Measure the voltage between LF61, pin 07 (WR) and GROUND.

Is the voltage less than 10 volts?

YES: REPAIR the circuit between the ASCCM and battery. This circuit includes the engine compartment fuse box, (fuse 3) the ignition positive relay and the high power protection module. For additional information, refer to the wiring diagrams. Test the system for normal operation.

NO: Go to step 3.
CHECK THE PERMANENT GROUND TO THE ASCCM
Measure the resistance between LF61, pin 02 (B) and GROUND.

Is the resistance greater than 5 ohms?

YES: REPAIR the high resistance circuit. For additional information, refer to the wiring diagrams. Test the system for normal operation.

NO: If the CAN tests are satisfactory, contact dealer technical support for advice on possible TCM failure.