Lexus NX: Inspection
INSPECTION
PROCEDURE
1. INSPECT SHIFT PADDLE SWITCH (TRANSMISSION SHIFT SWITCH ASSEMBLY)
| (a) Measure the resistance according to the value(s) in the table below. Standard Resistance: Shift Paddle Switch RH (Transmission Shift Switch Assembly): | Tester Connection | Switch Condition | Specified Condition | | SDN - ECC | "-" shift paddle operated and held (down-shift) | Below 2.5 Ω | | "-" shift paddle not operated (down-shift) | 1 MΩ or higher | If the resistance values are not as specified, replace the shift paddle switch LH (transmission shift switch assembly). | | | *a | Component without harness connected (Shift Paddle Switch LH (Transmission Shift Switch Assembly)) | | |
| (b) Measure the resistance according to the value(s) in the table below. Standard Resistance: Shift Paddle Switch RH (Transmission Shift Switch Assembly): | Tester Connection | Switch Condition | Specified Condition | | SUP - ECC | "+" shift paddle operated and held (up-shift) | Below 2.5 Ω | | "+" shift paddle not operated (up-shift) | 1 MΩ or higher | If the resistance values are not as specified, replace the shift paddle switch RH (transmission shift switch assembly). | | | *a | Component without harness connected (Shift Paddle Switch RH (Transmission Shift Switch Assembly)) | | |
2. INSPECT NO. 1 SWITCH WIRE
(a) Disconnect the No. 1 switch wire connector from the steering pad switch assembly.
| (b) Measure the resistance according to the value(s) in the table below. Standard Resistance: | Tester Connection | Switch Condition | Specified Condition | | z7-2 (SDN) - z7-3 (ECC) | "-" shift paddle operated and held (down-shift) | Below 2.5 Ω | | "-" shift paddle not operated (down-shift) | 1 MΩ or higher | | z7-1 (SUP) - z7-3 (ECC) | "+" shift paddle operated and held (up-shift) | Below 2.5 Ω | | "+" shift paddle not operated (up-shift) | 1 MΩ or higher | If the resistance value is not as specified, replace the No. 1 switch wire. | | | *a | No. 1 switch wire (to Steering Pad Switch Assembly) | | |
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INSTALLATION CAUTION / NOTICE / HINT NOTICE:
Do not replace the spiral cable with the battery connected and the power switch on (IG).
Do not rotate the spiral cable when the following conditions
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Inspect the fuses for circuits related to this system before performing the following inspection procedure.
The steering wheel heater unit is built into the steering wheel assembly which cannot be disassembled. T
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