Mack pinnacle dashlights serial#
Mack pinnacle dashlights drivers#

Disconnect the negative battery cable to prevent an electrical spark should a tool or equipment come in contact with an exposed electrical terminal. IGNITION LOCK CYLINDER REPLACEMENT – ON VEHICLEĬaution: Unless directed otherwise, the ignition and start switch must be in the OFF or LOCK position, and all electrical loads must be OFF before servicing any electrical component. This article updated with TSB 02-02-35-001. Some circuits are monitored by the BCM, and upon failure may set a DTC. CKT 1382 is a 12 volt output of the BCM, and is hot when park or headlamps are on. For the radio and cluster displays and some switches, an additional circuit is required, CKT 1382, for the these components to dim. The voltage output of the IP dimmer is veritable and goes through the ILLUM fuse via CKT 8 to the cluster, radio and various IP switches. With the headlamp and panel dimmer switch in the park or head position, voltage is supplied to the IP dimmer switch via CKT 44. Voltage to the INT PRK fuse is supplied from the park lamp relay, and is hot when park lamps or headlamps are on. Voltage to the ash tray lamp and power window/door lock switches is supplied from the INT PRK fuse. Ground for the reading lamp, cargo lamp, IP compartment lamp and the underhood lamp is supplied by its own ground. The BCM will supply a ground to the courtesy lamp relay when closing any one of the above switches to ground. Both relays are controlled by the Body Control Module (BCM) based on inputs from door jamb switch, dome lamp switch or door handle switch. Ground for the courtesy lamps goes through the courtesy lamp relay. The inadvertent power relay receives voltage from the CTSY LP fuse which is hot at all times. Voltage to the coil of the courtesy lamp relay, dome, reading lamp, courtesy lamps, cargo Lamp, Instrument Panel (IP) compartment lamp and the underhood lamp is supplied from the Inadvertent power relay on CKT 1732.

The instrument cluster includes the following components:

Mack pinnacle dashlights drivers#

If the same mileage cannot be set, the law requires that the replacement odometer be set at zero and a label be installed on the drivers door frame to show the previous odometer reading and the date of replacement. When replacing instrument panel cluster assembly, federal law requires that the odometer reading of the replacement unit be set to register the same mileage as the prior odometer.

Mack pinnacle dashlights serial#

The instrument cluster continuously processes class 2 serial data in order to determine the correct values and states to display. The information passed over the Class 2 serial data line, along with dedicated circuits to specific sensors and modules, provides the inputs which are used to operate all the gauges, indicators and the message center in the cluster. The instrument cluster micro processor communicates with other modules in the vehicle over the Class 2 serial data line. The standard instrument cluster contains a microprocessor. Q: Does the interior dimmer rheostat have an affect on any other interior lighting? I might have to utilize my school’s resources though, so I might not respond until sometime tomorrow. I’m going to try to do some further study to see how it can be tested. Perhaps it is possible that the dimmer is stuck in a ‘off’ or ‘low’ setting and has since been rendered unresponsive. One thing that all your affected devices have in common is the dimmer rheostat. It is quite possible that you are only 1 ignition lock cylinder away from restoring your lights. I believe it would be worth your time to perform the testing on the ignition circuit as stated in the TSB.

I like the TSB stating that it might just be an open in the ignition switch. One thing that I wasn’t sure if I wanted to include in the above list is to check the affected non-working devices by applying power directly to the affected circuits/devices from an outside source and see if they light up. if an open cannot be detected, splice into known good circuit close to the fuse box and run a parallel line to the associated affected device(s)

visually inspect wiring for a possible open in the circuit.

Perform ‘wiggle test’ on all wiring harnesses.

disconnect and reconnect all associated wiring harnesses (as per TSB).

Remove the 2 aforementioned devices from the dash.

Basic electrical testing needs to be performed.īased on the TSB’s recommendations as well as my own knowledge of basic electrical theroy, I have devised a general strategy to help remedy your problem with the IPC and HVAC temperature control head: Is it the wiring ignition switch/starter or just the Ignition Key Switch/Lock?