Driver Controls and Instruments 4. Each fault code is a two-digit number, as shown in Table 3.3 . The red FAIL light blinks the same num- ber of times as the first digit, a pause of approxi- mately 3/4 of a second follows, then the light blinks the same number of times as the second digit. 3. To review, test, and clear all fault codes from sys- tem memory, use a hand-held diagnostic tool or ServiceRanger. Instruments 5. Additional fault codes are blinked out at intervals of approximately 3 seconds. After all the fault codes have been blinked out, a code 41 will be blinked out. For the standard electronic engine gauge layout, see Fig. 3.28 .
For the standard gauge layout for right-hand-drive and mechanical engine vehicles, see Fig. 3.29 . Failure Display Mode/Fault Codes Speedometer NOTE: If the vehicle does not have ON/OFF con- trol on the DDU, press and hold the volume knob after the ignition key is turned on and the 15- second self-test is complete. A speedometer registers vehicle speed in both miles per hour (mph) and kilometers per hour (km/h). Stan- dard speedometer gauges are equipped with an odom- eter that records total distance traveled in either miles or kilometers. 1. Press and hold the DDU volume control and power ON/OFF knob for at least 9 seconds.
The system will turn off if you release the knob before 9 sec- onds. After 9 seconds, the DDU FAIL light begins to blink out the fault codes. After a 3-second interval additional fault codes, if present, will be blinked out. A code 41 will be blinked out either if no faults are found or when all fault codes have been blinked out. Tachometer, Optional A tachometer indicates engine speed in revolutions per minute (rpm) and serves as a guide for shifting the transmission and keeping the engine in the appropriate rpm range. For low idle and rated rpm, see the engine identification plate. The tachometer may include an engine hour meter.
An engine hour meter records continuous operating hours of the engine. In cases where actual mileage does not 2. Position the DDU range knob to the left to blink ac- tive fault codes and to the right to blink inactive codes. 3.39